未找到设备源时增加提示

app/scanner2/Scanner_zh_CN.ts

@@ -2199,7 +2199,7 @@ bug description:
     </message>
     <message>
         <location filename="mainwindow.ui" line="302"/>
-        <location filename="mainwindow.cpp" line="161"/>
+        <location filename="mainwindow.cpp" line="162"/>
         <source>act_acquireInto</source>
         <translation>扫描至...</translation>
     </message>
@@ -2429,22 +2429,22 @@ bug description:
         <translation>选择设备源...</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="132"/>
+        <location filename="mainwindow.cpp" line="133"/>
         <source>HuaGoScan</source>
         <translation>华高扫描软件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="314"/>
+        <location filename="mainwindow.cpp" line="315"/>
         <source>Grid</source>
         <translation>多列显示</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="319"/>
+        <location filename="mainwindow.cpp" line="320"/>
         <source>Move To...</source>
         <translation>移动到...</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="323"/>
+        <location filename="mainwindow.cpp" line="324"/>
         <source>Insert files</source>
         <translation>插入文件</translation>
     </message>
@@ -2453,22 +2453,22 @@ bug description:
         <translation type="vanished">没有发现扫描仪</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="798"/>
+        <location filename="mainwindow.cpp" line="803"/>
-        <location filename="mainwindow.cpp" line="1756"/>
+        <location filename="mainwindow.cpp" line="1782"/>
-        <location filename="mainwindow.cpp" line="1779"/>
+        <location filename="mainwindow.cpp" line="1805"/>
-        <location filename="mainwindow.cpp" line="2596"/>
+        <location filename="mainwindow.cpp" line="2622"/>
-        <location filename="mainwindow.cpp" line="2893"/>
+        <location filename="mainwindow.cpp" line="2919"/>
         <source>Question</source>
         <translation>询问</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1757"/>
+        <location filename="mainwindow.cpp" line="1783"/>
         <source>modified, save it?</source>
         <translation>图像已被修改。
 是否保存修改？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="799"/>
+        <location filename="mainwindow.cpp" line="804"/>
         <source>file lost, remove it?</source>
         <translation>文件已丢失，是否删除？</translation>
     </message>
@@ -2493,17 +2493,17 @@ bug description:
         <translation type="vanished">扫描完成</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1775"/>
+        <location filename="mainwindow.cpp" line="1801"/>
         <source>Clear, then start scan</source>
         <translation>清空并启动扫描</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1776"/>
+        <location filename="mainwindow.cpp" line="1802"/>
         <source>Do NOT clear, then start scan</source>
         <translation>不清空并启动扫描</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1780"/>
+        <location filename="mainwindow.cpp" line="1806"/>
         <source>Already exist images in image list.
 Do you want to clear?</source>
         <translation>图像列表中已存在图像。
@@ -2518,12 +2518,12 @@ Do you want to clear?</source>
         <translation type="vanished">磁盘空间不足，请删除不需要的文件，以保证有足够的空间</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2003"/>
+        <location filename="mainwindow.cpp" line="2029"/>
         <source>Open images</source>
         <translation>打开图片</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2014"/>
+        <location filename="mainwindow.cpp" line="2040"/>
         <source>Insert images</source>
         <translation>插入图片</translation>
     </message>
@@ -2536,17 +2536,17 @@ Do you want to clear?</source>
         <translation type="vanished">保存失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1198"/>
+        <location filename="mainwindow.cpp" line="1203"/>
         <source>binary</source>
         <translation>黑白</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1200"/>
+        <location filename="mainwindow.cpp" line="1205"/>
         <source>gray</source>
         <translation>256级灰度</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1202"/>
+        <location filename="mainwindow.cpp" line="1207"/>
         <source>rgb</source>
         <translation>24位彩色</translation>
     </message>
@@ -2555,245 +2555,253 @@ Do you want to clear?</source>
         <translation type="vanished">请手动唤醒设备</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="120"/>
+        <location filename="mainwindow.cpp" line="121"/>
         <source>UniScan</source>
         <translation>紫光扫描软件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="124"/>
+        <location filename="mainwindow.cpp" line="125"/>
         <source>Scan</source>
         <translation>扫描软件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="128"/>
+        <location filename="mainwindow.cpp" line="129"/>
         <source>DeliScan</source>
         <translation>得力扫描软件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="341"/>
+        <location filename="mainwindow.cpp" line="342"/>
-        <location filename="mainwindow.cpp" line="4191"/>
+        <location filename="mainwindow.cpp" line="4188"/>
-        <location filename="mainwindow.cpp" line="4453"/>
+        <location filename="mainwindow.cpp" line="4450"/>
         <source>Please go to &apos;Menu Bar -&gt;Scan&apos; to select a device</source>
         <translation>请前往菜单栏“扫描-&gt;选择设备源...”选择设备</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="676"/>
+        <location filename="mainwindow.cpp" line="385"/>
-        <location filename="mainwindow.cpp" line="4147"/>
+        <location filename="mainwindow.cpp" line="4480"/>
+        <source>Device source not found!</source>
+        <translation>未找到设备源!</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="681"/>
+        <location filename="mainwindow.cpp" line="4144"/>
         <source>default scheme</source>
         <translation>默认配置方案</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1325"/>
+        <location filename="mainwindow.cpp" line="1330"/>
         <source>This scan is complete. Do you want to continue scanning?</source>
         <translation>本次扫描完成，是否继续扫描？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1520"/>
+        <location filename="mainwindow.cpp" line="1546"/>
         <source>thumbnailBar enabled</source>
         <translation>显示缩略图栏</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1524"/>
+        <location filename="mainwindow.cpp" line="1550"/>
         <source>thumbnailBar hidden</source>
         <translation>隐藏缩略图栏</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1778"/>
+        <location filename="mainwindow.cpp" line="1804"/>
         <source>cancel</source>
         <translation>取消</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2240"/>
+        <location filename="mainwindow.cpp" line="2266"/>
-        <location filename="mainwindow.cpp" line="2304"/>
+        <location filename="mainwindow.cpp" line="2330"/>
-        <location filename="mainwindow.cpp" line="2379"/>
+        <location filename="mainwindow.cpp" line="2405"/>
         <source>save succeed</source>
         <translation>保存成功</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2251"/>
+        <location filename="mainwindow.cpp" line="2277"/>
-        <location filename="mainwindow.cpp" line="2390"/>
+        <location filename="mainwindow.cpp" line="2416"/>
         <source>find savePath in thumbnail</source>
         <translation>图片名在列表中已存在</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2414"/>
+        <location filename="mainwindow.cpp" line="2440"/>
         <source>Please select at least one picture before export</source>
         <translation>请至少选中一张图片再进行导出</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>File name</source>
         <translation>文件名</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>File path</source>
         <translation>文件路径</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>File size</source>
         <translation>文件大小</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>Creation date/time</source>
         <translation>创建时间</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>Modified date/time</source>
         <translation>修改时间</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>Accessed date/time</source>
         <translation>访问时间</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Format</source>
         <translation>格式</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Width</source>
         <translation>宽度</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Height</source>
         <translation>高度</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>depth</source>
         <translation>深度</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Color model</source>
         <translation>色彩模式</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>DPI</source>
         <translation>每英寸像素点</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Print size</source>
         <translation>打印尺寸</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Frame</source>
         <translation>帧</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2532"/>
+        <location filename="mainwindow.cpp" line="2558"/>
         <source>None</source>
         <translation>无</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2532"/>
+        <location filename="mainwindow.cpp" line="2558"/>
         <source>Mono</source>
         <translation>黑白</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2532"/>
+        <location filename="mainwindow.cpp" line="2558"/>
         <source>Gray</source>
         <translation>灰度</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2532"/>
+        <location filename="mainwindow.cpp" line="2558"/>
         <source>Color</source>
         <translation>彩色</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2539"/>
+        <location filename="mainwindow.cpp" line="2565"/>
         <source>Not supported</source>
         <translation>不支持</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2573"/>
+        <location filename="mainwindow.cpp" line="2599"/>
         <source>Warning</source>
         <translation>
 
 警告</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2573"/>
+        <location filename="mainwindow.cpp" line="2599"/>
         <source>Device is Running!
 Please finish scanning first.</source>
         <translation>设备正在运行！
 请先结束扫描。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3279"/>
+        <location filename="mainwindow.cpp" line="3276"/>
         <source>Device is offline</source>
         <translation>设备已断开</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3284"/>
+        <location filename="mainwindow.cpp" line="3281"/>
         <source>Open failed</source>
         <translation>打开失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1325"/>
+        <location filename="mainwindow.cpp" line="385"/>
-        <location filename="mainwindow.cpp" line="3279"/>
+        <location filename="mainwindow.cpp" line="1330"/>
-        <location filename="mainwindow.cpp" line="3284"/>
+        <location filename="mainwindow.cpp" line="3276"/>
-        <location filename="mainwindow.cpp" line="4206"/>
+        <location filename="mainwindow.cpp" line="3281"/>
+        <location filename="mainwindow.cpp" line="4203"/>
+        <location filename="mainwindow.cpp" line="4480"/>
         <source>Prompt</source>
         <translation>提示</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3215"/>
+        <location filename="mainwindow.cpp" line="3212"/>
         <source>&lt;p&gt;DriverVer: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;版本号: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3225"/>
+        <location filename="mainwindow.cpp" line="3222"/>
-        <location filename="mainwindow.cpp" line="3233"/>
+        <location filename="mainwindow.cpp" line="3230"/>
-        <location filename="mainwindow.cpp" line="3240"/>
+        <location filename="mainwindow.cpp" line="3237"/>
         <source>&lt;p&gt;Vendor: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;制造商: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3229"/>
+        <location filename="mainwindow.cpp" line="3226"/>
-        <location filename="mainwindow.cpp" line="3237"/>
+        <location filename="mainwindow.cpp" line="3234"/>
-        <location filename="mainwindow.cpp" line="3241"/>
+        <location filename="mainwindow.cpp" line="3238"/>
         <source>&lt;p&gt;Copyright: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;版权信息: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3228"/>
+        <location filename="mainwindow.cpp" line="3225"/>
-        <location filename="mainwindow.cpp" line="3236"/>
+        <location filename="mainwindow.cpp" line="3233"/>
-        <location filename="mainwindow.cpp" line="3242"/>
+        <location filename="mainwindow.cpp" line="3239"/>
         <source>&lt;p&gt;Company website: &lt;a href=%1&gt;%1&lt;/p&gt;</source>
         <translation>&lt;p&gt;公司网址: &lt;a href=%1&gt;%1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3226"/>
+        <location filename="mainwindow.cpp" line="3223"/>
-        <location filename="mainwindow.cpp" line="3234"/>
+        <location filename="mainwindow.cpp" line="3231"/>
-        <location filename="mainwindow.cpp" line="3243"/>
+        <location filename="mainwindow.cpp" line="3240"/>
         <source>&lt;p&gt;Company address: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;公司地址: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3227"/>
+        <location filename="mainwindow.cpp" line="3224"/>
-        <location filename="mainwindow.cpp" line="3235"/>
+        <location filename="mainwindow.cpp" line="3232"/>
-        <location filename="mainwindow.cpp" line="3244"/>
+        <location filename="mainwindow.cpp" line="3241"/>
         <source>&lt;p&gt;Company telephone: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;公司电话: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3245"/>
+        <location filename="mainwindow.cpp" line="3242"/>
         <source>&lt;p&gt;Company GPS: &lt;a href=%1&gt;%2&lt;/p&gt;</source>
         <translation>&lt;p&gt;公司地图定位: &lt;a href=%1&gt;%2&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3245"/>
+        <location filename="mainwindow.cpp" line="3242"/>
         <source>Baidu map access</source>
         <translation>百度地图访问</translation>
     </message>
@@ -2814,8 +2822,8 @@ Please finish scanning first.</source>
         <translation type="vanished">扫描张数: %1</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="367"/>
+        <location filename="mainwindow.cpp" line="368"/>
-        <location filename="mainwindow.cpp" line="4466"/>
+        <location filename="mainwindow.cpp" line="4464"/>
         <source>Device %1 is open</source>
         <translation>设备 %1 已打开</translation>
     </message>
@@ -2824,76 +2832,76 @@ Please finish scanning first.</source>
         <translation type="obsolete">关于</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3854"/>
+        <location filename="mainwindow.cpp" line="3851"/>
         <source>cache path folder limit:%1</source>
         <translation>无法访问当前缓存路径：%1
 请尝试在【用户】菜单登录管理员账户，前往【缓存设置】更改缓存路径。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3858"/>
+        <location filename="mainwindow.cpp" line="3855"/>
         <source>aquireinto folder limit:%1</source>
         <translation>无法访问当前缓存路径：%1
 请尝试在【扫描到】更改缓存路径。</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3942"/>
+        <location filename="mainwindow.cpp" line="3939"/>
         <source>Image processing failed</source>
         <translation>图像处理失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3946"/>
+        <location filename="mainwindow.cpp" line="3943"/>
         <source>Ocr init failed</source>
         <translation>OCR初始化错误</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3950"/>
+        <location filename="mainwindow.cpp" line="3947"/>
         <source>Ocr failed</source>
         <translation>OCR错误</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3954"/>
+        <location filename="mainwindow.cpp" line="3951"/>
         <source>File does not exist</source>
         <translation>文件不存在</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3958"/>
+        <location filename="mainwindow.cpp" line="3955"/>
         <source>Failed to load dynamic library</source>
         <translation>加载动态库失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3962"/>
+        <location filename="mainwindow.cpp" line="3959"/>
         <source>File data error</source>
         <translation>文件数据错误</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3966"/>
+        <location filename="mainwindow.cpp" line="3963"/>
         <source>Image format processing error</source>
         <translation>图像格式处理错误</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3970"/>
+        <location filename="mainwindow.cpp" line="3967"/>
         <source>Out of memory</source>
         <translation>内存不足</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3974"/>
+        <location filename="mainwindow.cpp" line="3971"/>
         <source>Failed</source>
         <translation>错误</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4206"/>
+        <location filename="mainwindow.cpp" line="4203"/>
         <source>The Device has reached roller life</source>
         <translation>纸轮搓纸次数已超过设计使用范围，扫描过程中搓纸失败、歪斜、搓多张等异常频次可能会明显增多，
 请注意及时清洁、并联系设备供应商购买替换纸轮！</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4352"/>
+        <location filename="mainwindow.cpp" line="4349"/>
-        <location filename="mainwindow.cpp" line="4371"/>
+        <location filename="mainwindow.cpp" line="4368"/>
         <source>The language switch is successful and takes effect the next time the software is started!</source>
         <translation>语言切换成功，下次启动软件时生效!</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4415"/>
+        <location filename="mainwindow.cpp" line="4412"/>
         <source>Are you sure to delete selected file?</source>
         <translation>您确定彻底删除选中项文件？</translation>
     </message>
@@ -2911,7 +2919,7 @@ Please finish scanning first.</source>
 请尝试在【用户】菜单登录管理员账户，前往【缓存设置】更改缓存路径</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3938"/>
+        <location filename="mainwindow.cpp" line="3935"/>
         <source>Insufficient access rights</source>
         <translation>文件访问权限不足</translation>
     </message>
@@ -2936,18 +2944,18 @@ Please finish scanning first.</source>
         <translation type="vanished">关闭</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4294"/>
+        <location filename="mainwindow.cpp" line="4291"/>
         <source>tip</source>
         <translation>提示</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4294"/>
+        <location filename="mainwindow.cpp" line="4291"/>
         <source>Other versions not available</source>
         <translation>未获取到其他版本</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4314"/>
+        <location filename="mainwindow.cpp" line="4311"/>
-        <location filename="mainwindow.cpp" line="4330"/>
+        <location filename="mainwindow.cpp" line="4327"/>
         <source>The device does not support this operation</source>
         <translation>操作失败</translation>
     </message>
@@ -2956,8 +2964,8 @@ Please finish scanning first.</source>
         <translation type="vanished">IO错误</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3823"/>
+        <location filename="mainwindow.cpp" line="3820"/>
-        <location filename="mainwindow.cpp" line="3861"/>
+        <location filename="mainwindow.cpp" line="3858"/>
         <source>error</source>
         <translation>错误</translation>
     </message>
@@ -2972,7 +2980,7 @@ Continue to close?</source>
 是否继续关闭？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2894"/>
+        <location filename="mainwindow.cpp" line="2920"/>
         <source>Sure to sign out administrator account?</source>
         <translation>是否确定登出管理员账户？</translation>
     </message>
@@ -3042,92 +3050,92 @@ Continue to close?</source>
         <translation type="vanished">启动失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="104"/>
+        <location filename="mainwindow.cpp" line="105"/>
         <source>HanvonScan</source>
         <translation>汉王扫描软件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="108"/>
+        <location filename="mainwindow.cpp" line="109"/>
         <source>LanxumScan</source>
         <translation>立思辰扫描软件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="112"/>
+        <location filename="mainwindow.cpp" line="113"/>
         <source>CumtennScan</source>
         <translation>沧田扫描软件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="116"/>
+        <location filename="mainwindow.cpp" line="117"/>
         <source>MicrotekScan</source>
         <translation>Microtek DocWizard EX 扫描软件</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="187"/>
+        <location filename="mainwindow.cpp" line="188"/>
         <source>menu_language</source>
         <translation>语言</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="188"/>
+        <location filename="mainwindow.cpp" line="189"/>
         <source>act_simpCN</source>
         <translation>简体中文</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="189"/>
+        <location filename="mainwindow.cpp" line="190"/>
         <source>act_English</source>
         <translation>English</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="395"/>
+        <location filename="mainwindow.cpp" line="400"/>
         <source>auto save</source>
         <translation>自动保存</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="396"/>
+        <location filename="mainwindow.cpp" line="401"/>
         <source>when switching pictures, save the edited pictures directly without reminding</source>
         <translation>切换图片时，不提醒，直接保存编辑过的图片</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="548"/>
+        <location filename="mainwindow.cpp" line="553"/>
         <source>statusBar displayed</source>
         <translation>显示状态栏</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="552"/>
+        <location filename="mainwindow.cpp" line="557"/>
         <source>statusBar hidden</source>
         <translation>隐藏状态栏</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="561"/>
+        <location filename="mainwindow.cpp" line="566"/>
         <source>toolBar displayed</source>
         <translation>显示工具栏</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="565"/>
+        <location filename="mainwindow.cpp" line="570"/>
         <source>toolBar hidden</source>
         <translation>隐藏工具栏</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="574"/>
+        <location filename="mainwindow.cpp" line="579"/>
         <source>colorInfo enabled</source>
         <translation>启用图像信息</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="578"/>
+        <location filename="mainwindow.cpp" line="583"/>
         <source>colorInfo disenabled</source>
         <translation>关闭图像信息</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="611"/>
+        <location filename="mainwindow.cpp" line="616"/>
         <source>enabling automatic saving</source>
         <translation>启用自动保存</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="615"/>
+        <location filename="mainwindow.cpp" line="620"/>
         <source>cancel auto save</source>
         <translation>取消自动保存</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="732"/>
+        <location filename="mainwindow.cpp" line="737"/>
         <source>Automatically save the edited the edited iamge when switching pictures. To cancel, uncheck the menu item: image-&gt; automatically save</source>
         <translation>切换图片时，自动保存编辑过的图像。若想取消，请取消勾选菜单项：图像-&gt;自动保存</translation>
     </message>
@@ -3172,12 +3180,12 @@ Continue to close?</source>
         <translation type="vanished">创建图片文件失败： </translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2245"/>
+        <location filename="mainwindow.cpp" line="2271"/>
-        <location filename="mainwindow.cpp" line="2246"/>
+        <location filename="mainwindow.cpp" line="2272"/>
-        <location filename="mainwindow.cpp" line="2309"/>
+        <location filename="mainwindow.cpp" line="2335"/>
-        <location filename="mainwindow.cpp" line="2310"/>
+        <location filename="mainwindow.cpp" line="2336"/>
-        <location filename="mainwindow.cpp" line="2384"/>
+        <location filename="mainwindow.cpp" line="2410"/>
-        <location filename="mainwindow.cpp" line="2385"/>
+        <location filename="mainwindow.cpp" line="2411"/>
         <source>save image doc failed: </source>
         <translation>保存图片文件失败： </translation>
     </message>
@@ -3216,17 +3224,17 @@ Continue to close?</source>
         <translation type="vanished">滚轴张数: %1</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3574"/>
+        <location filename="mainwindow.cpp" line="3571"/>
         <source>Detected that there is less than 1GB of disk space. Do you want to continue?</source>
         <translation>检测到磁盘空间已不足1GB，是否继续?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3824"/>
+        <location filename="mainwindow.cpp" line="3821"/>
         <source>start failed!</source>
         <translation>启动安装程序失败！</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2597"/>
+        <location filename="mainwindow.cpp" line="2623"/>
         <source>There are pictures that have not been saved.
 Are you sure to close?</source>
         <translation>有图像未保存，确定关闭？</translation>
@@ -3236,39 +3244,39 @@ Are you sure to close?</source>
         <translation type="vanished">发现设备 : %1</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2240"/>
+        <location filename="mainwindow.cpp" line="2266"/>
-        <location filename="mainwindow.cpp" line="2245"/>
+        <location filename="mainwindow.cpp" line="2271"/>
-        <location filename="mainwindow.cpp" line="2251"/>
+        <location filename="mainwindow.cpp" line="2277"/>
-        <location filename="mainwindow.cpp" line="2304"/>
+        <location filename="mainwindow.cpp" line="2330"/>
-        <location filename="mainwindow.cpp" line="2309"/>
+        <location filename="mainwindow.cpp" line="2335"/>
-        <location filename="mainwindow.cpp" line="2379"/>
+        <location filename="mainwindow.cpp" line="2405"/>
-        <location filename="mainwindow.cpp" line="2384"/>
+        <location filename="mainwindow.cpp" line="2410"/>
-        <location filename="mainwindow.cpp" line="2390"/>
+        <location filename="mainwindow.cpp" line="2416"/>
-        <location filename="mainwindow.cpp" line="2414"/>
+        <location filename="mainwindow.cpp" line="2440"/>
-        <location filename="mainwindow.cpp" line="2608"/>
+        <location filename="mainwindow.cpp" line="2634"/>
-        <location filename="mainwindow.cpp" line="2957"/>
+        <location filename="mainwindow.cpp" line="2983"/>
-        <location filename="mainwindow.cpp" line="2961"/>
+        <location filename="mainwindow.cpp" line="2987"/>
-        <location filename="mainwindow.cpp" line="3574"/>
+        <location filename="mainwindow.cpp" line="3571"/>
-        <location filename="mainwindow.cpp" line="4314"/>
+        <location filename="mainwindow.cpp" line="4311"/>
-        <location filename="mainwindow.cpp" line="4330"/>
+        <location filename="mainwindow.cpp" line="4327"/>
-        <location filename="mainwindow.cpp" line="4351"/>
+        <location filename="mainwindow.cpp" line="4348"/>
-        <location filename="mainwindow.cpp" line="4370"/>
+        <location filename="mainwindow.cpp" line="4367"/>
-        <location filename="mainwindow.cpp" line="4415"/>
+        <location filename="mainwindow.cpp" line="4412"/>
         <source>tips</source>
         <translation>提示</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2609"/>
+        <location filename="mainwindow.cpp" line="2635"/>
         <source>Are you sure to close?</source>
         <translation>确定关闭应用软件？</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2945"/>
+        <location filename="mainwindow.cpp" line="2971"/>
         <source>confirm operation</source>
         <translation>确认操作</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2946"/>
+        <location filename="mainwindow.cpp" line="2972"/>
         <source>are you sure to clear the roller count?</source>
         <translation>您确定要清除滚轴计数吗</translation>
     </message>
@@ -3277,22 +3285,22 @@ Are you sure to close?</source>
         <translation type="vanished">提示</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2957"/>
+        <location filename="mainwindow.cpp" line="2983"/>
         <source>Roller scanned count has been set to 0.</source>
         <translation>辊轴计数已置零</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2961"/>
+        <location filename="mainwindow.cpp" line="2987"/>
         <source>Roller scanned count reset failed.</source>
         <translation>重置滚轴计数失败</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3048"/>
+        <location filename="mainwindow.cpp" line="3093"/>
         <source>Error</source>
         <translation>错误</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3048"/>
+        <location filename="mainwindow.cpp" line="3093"/>
         <source>Document missing! It would be deleted or renamed.</source>
         <translation>文档丢失！文档可能已被删除或被重命名。</translation>
     </message>
@@ -3333,7 +3341,7 @@ Are you sure to close?</source>
         <translation type="vanished">&lt;p&gt;%1&lt;/p&gt;&lt;p&gt;版本: %2&lt;br&gt;版权: &amp;#169; %3&lt;/p&gt;&lt;p&gt;%4%5%6%7%8%9&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3213"/>
+        <location filename="mainwindow.cpp" line="3210"/>
         <source>about %1</source>
         <translation>关于 %1</translation>
     </message>
@@ -3375,7 +3383,7 @@ Are you sure to close?</source>
     <name>Widget</name>
     <message>
         <source>zuobiaozhou</source>
-        <translation type="vanished">坐标轴</translation>
+        <translation>坐标轴</translation>
     </message>
 </context>
 <context>

app/scanner2/Scanner_zh_EN.ts

@@ -2055,7 +2055,7 @@ Please make sure the two passwords are the same.</source>
     </message>
     <message>
         <location filename="mainwindow.ui" line="302"/>
-        <location filename="mainwindow.cpp" line="161"/>
+        <location filename="mainwindow.cpp" line="162"/>
         <source>act_acquireInto</source>
         <translation>Scan to...</translation>
     </message>
@@ -2285,62 +2285,62 @@ Please make sure the two passwords are the same.</source>
         <translation>Select device source...</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="104"/>
+        <location filename="mainwindow.cpp" line="105"/>
         <source>HanvonScan</source>
         <translation>Hanvon scanning software</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="108"/>
+        <location filename="mainwindow.cpp" line="109"/>
         <source>LanxumScan</source>
         <translation>LANXUM scanning software</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="112"/>
+        <location filename="mainwindow.cpp" line="113"/>
         <source>CumtennScan</source>
         <translation>CUMTENN scanning software</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="116"/>
+        <location filename="mainwindow.cpp" line="117"/>
         <source>MicrotekScan</source>
         <translation>Microtek DocWizard EX V1.0</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="128"/>
+        <location filename="mainwindow.cpp" line="129"/>
         <source>DeliScan</source>
         <translation>Deli scanning software</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="132"/>
+        <location filename="mainwindow.cpp" line="133"/>
         <source>HuaGoScan</source>
         <translation>HUAGOSCAN scanning software</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="187"/>
+        <location filename="mainwindow.cpp" line="188"/>
         <source>menu_language</source>
         <translation>Language</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="188"/>
+        <location filename="mainwindow.cpp" line="189"/>
         <source>act_simpCN</source>
         <translation>简体中文</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="189"/>
+        <location filename="mainwindow.cpp" line="190"/>
         <source>act_English</source>
         <translation>English</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="314"/>
+        <location filename="mainwindow.cpp" line="315"/>
         <source>Grid</source>
         <translation>Multi-column display</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="319"/>
+        <location filename="mainwindow.cpp" line="320"/>
         <source>Move To...</source>
         <translation>Move to...</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="323"/>
+        <location filename="mainwindow.cpp" line="324"/>
         <source>Insert files</source>
         <translation>Insert file</translation>
     </message>
@@ -2349,76 +2349,76 @@ Please make sure the two passwords are the same.</source>
         <translation type="vanished">No scanner detected</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="395"/>
+        <location filename="mainwindow.cpp" line="400"/>
         <source>auto save</source>
         <translation>Auto save</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="396"/>
+        <location filename="mainwindow.cpp" line="401"/>
         <source>when switching pictures, save the edited pictures directly without reminding</source>
         <translation>Do not show prompt and save the edited images directly when switching images.</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="548"/>
+        <location filename="mainwindow.cpp" line="553"/>
         <source>statusBar displayed</source>
         <translation>Show status bar</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="552"/>
+        <location filename="mainwindow.cpp" line="557"/>
         <source>statusBar hidden</source>
         <translation>Hide status bar</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="561"/>
+        <location filename="mainwindow.cpp" line="566"/>
         <source>toolBar displayed</source>
         <translation>Show toolbar</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="565"/>
+        <location filename="mainwindow.cpp" line="570"/>
         <source>toolBar hidden</source>
         <translation>Hide toolbar</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="574"/>
+        <location filename="mainwindow.cpp" line="579"/>
         <source>colorInfo enabled</source>
         <translation>Enable image information</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="578"/>
+        <location filename="mainwindow.cpp" line="583"/>
         <source>colorInfo disenabled</source>
         <translation>Disable image information</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="611"/>
+        <location filename="mainwindow.cpp" line="616"/>
         <source>enabling automatic saving</source>
         <translation>Enable auto save</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="615"/>
+        <location filename="mainwindow.cpp" line="620"/>
         <source>cancel auto save</source>
         <translation>Cancel auto save</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="732"/>
+        <location filename="mainwindow.cpp" line="737"/>
         <source>Automatically save the edited the edited iamge when switching pictures. To cancel, uncheck the menu item: image-&gt; automatically save</source>
         <translation>Save edited images automatically when switching images. If you want to cancel, please deselect the menu item: Auto save images.</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="798"/>
+        <location filename="mainwindow.cpp" line="803"/>
-        <location filename="mainwindow.cpp" line="1756"/>
+        <location filename="mainwindow.cpp" line="1782"/>
-        <location filename="mainwindow.cpp" line="1779"/>
+        <location filename="mainwindow.cpp" line="1805"/>
-        <location filename="mainwindow.cpp" line="2596"/>
+        <location filename="mainwindow.cpp" line="2622"/>
-        <location filename="mainwindow.cpp" line="2893"/>
+        <location filename="mainwindow.cpp" line="2919"/>
         <source>Question</source>
         <translation>Ask</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1325"/>
+        <location filename="mainwindow.cpp" line="1330"/>
         <source>This scan is complete. Do you want to continue scanning?</source>
         <translation>This scan is complete. Do you want to continue scanning?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1757"/>
+        <location filename="mainwindow.cpp" line="1783"/>
         <source>modified, save it?</source>
         <translation>Image modified, save changes?</translation>
     </message>
@@ -2435,7 +2435,7 @@ Please make sure the two passwords are the same.</source>
         <translation type="vanished">No</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="799"/>
+        <location filename="mainwindow.cpp" line="804"/>
         <source>file lost, remove it?</source>
         <translation>File lost; delete?</translation>
     </message>
@@ -2481,34 +2481,34 @@ Please reselect a path or clear disk space immediately.</translation>
         <translation type="vanished">Failed to create image file: </translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2245"/>
+        <location filename="mainwindow.cpp" line="2271"/>
-        <location filename="mainwindow.cpp" line="2246"/>
+        <location filename="mainwindow.cpp" line="2272"/>
-        <location filename="mainwindow.cpp" line="2309"/>
+        <location filename="mainwindow.cpp" line="2335"/>
-        <location filename="mainwindow.cpp" line="2310"/>
+        <location filename="mainwindow.cpp" line="2336"/>
-        <location filename="mainwindow.cpp" line="2384"/>
+        <location filename="mainwindow.cpp" line="2410"/>
-        <location filename="mainwindow.cpp" line="2385"/>
+        <location filename="mainwindow.cpp" line="2411"/>
         <source>save image doc failed: </source>
         <translation>Failed to save image: </translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1198"/>
+        <location filename="mainwindow.cpp" line="1203"/>
         <source>binary</source>
         <translation>Black and white</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="341"/>
+        <location filename="mainwindow.cpp" line="342"/>
-        <location filename="mainwindow.cpp" line="4191"/>
+        <location filename="mainwindow.cpp" line="4188"/>
-        <location filename="mainwindow.cpp" line="4453"/>
+        <location filename="mainwindow.cpp" line="4450"/>
         <source>Please go to &apos;Menu Bar -&gt;Scan&apos; to select a device</source>
         <translation>Please go to the menu bar &apos;Scan -&gt;Select device source...&apos; to select a device</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1200"/>
+        <location filename="mainwindow.cpp" line="1205"/>
         <source>gray</source>
         <translation>Grayscale</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1202"/>
+        <location filename="mainwindow.cpp" line="1207"/>
         <source>rgb</source>
         <translation>Color</translation>
     </message>
@@ -2517,13 +2517,13 @@ Please reselect a path or clear disk space immediately.</translation>
         <translation type="vanished">Failed to start</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="120"/>
+        <location filename="mainwindow.cpp" line="121"/>
         <source>UniScan</source>
         <translation>UNI scanning software</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="676"/>
+        <location filename="mainwindow.cpp" line="681"/>
-        <location filename="mainwindow.cpp" line="4147"/>
+        <location filename="mainwindow.cpp" line="4144"/>
         <source>default scheme</source>
         <translation>Default scheme</translation>
     </message>
@@ -2532,7 +2532,7 @@ Please reselect a path or clear disk space immediately.</translation>
         <translation type="vanished">Please wake up the device manually</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="124"/>
+        <location filename="mainwindow.cpp" line="125"/>
         <source>Scan</source>
         <translation>Scanning software</translation>
     </message>
@@ -2541,281 +2541,289 @@ Please reselect a path or clear disk space immediately.</translation>
         <translation type="vanished">Device is awake</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1520"/>
+        <location filename="mainwindow.cpp" line="1546"/>
         <source>thumbnailBar enabled</source>
         <translation>Show thumbnail bar</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1524"/>
+        <location filename="mainwindow.cpp" line="1550"/>
         <source>thumbnailBar hidden</source>
         <translation>Hide thumbnail bar</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1775"/>
+        <location filename="mainwindow.cpp" line="1801"/>
         <source>Clear, then start scan</source>
         <translation>Clear and start scan</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1776"/>
+        <location filename="mainwindow.cpp" line="1802"/>
         <source>Do NOT clear, then start scan</source>
         <translation>Do not clear and start scan</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1778"/>
+        <location filename="mainwindow.cpp" line="1804"/>
         <source>cancel</source>
         <translation>Cancel</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1780"/>
+        <location filename="mainwindow.cpp" line="1806"/>
         <source>Already exist images in image list.
 Do you want to clear?</source>
         <translation>Image already exists in the list of images.
 Clear?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2003"/>
+        <location filename="mainwindow.cpp" line="2029"/>
         <source>Open images</source>
         <translation>Open image</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2014"/>
+        <location filename="mainwindow.cpp" line="2040"/>
         <source>Insert images</source>
         <translation>Insert image</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2240"/>
+        <location filename="mainwindow.cpp" line="2266"/>
-        <location filename="mainwindow.cpp" line="2245"/>
+        <location filename="mainwindow.cpp" line="2271"/>
-        <location filename="mainwindow.cpp" line="2251"/>
+        <location filename="mainwindow.cpp" line="2277"/>
-        <location filename="mainwindow.cpp" line="2304"/>
+        <location filename="mainwindow.cpp" line="2330"/>
-        <location filename="mainwindow.cpp" line="2309"/>
+        <location filename="mainwindow.cpp" line="2335"/>
-        <location filename="mainwindow.cpp" line="2379"/>
+        <location filename="mainwindow.cpp" line="2405"/>
-        <location filename="mainwindow.cpp" line="2384"/>
+        <location filename="mainwindow.cpp" line="2410"/>
-        <location filename="mainwindow.cpp" line="2390"/>
+        <location filename="mainwindow.cpp" line="2416"/>
-        <location filename="mainwindow.cpp" line="2414"/>
+        <location filename="mainwindow.cpp" line="2440"/>
-        <location filename="mainwindow.cpp" line="2608"/>
+        <location filename="mainwindow.cpp" line="2634"/>
-        <location filename="mainwindow.cpp" line="2957"/>
+        <location filename="mainwindow.cpp" line="2983"/>
-        <location filename="mainwindow.cpp" line="2961"/>
+        <location filename="mainwindow.cpp" line="2987"/>
-        <location filename="mainwindow.cpp" line="3574"/>
+        <location filename="mainwindow.cpp" line="3571"/>
-        <location filename="mainwindow.cpp" line="4314"/>
+        <location filename="mainwindow.cpp" line="4311"/>
-        <location filename="mainwindow.cpp" line="4330"/>
+        <location filename="mainwindow.cpp" line="4327"/>
-        <location filename="mainwindow.cpp" line="4351"/>
+        <location filename="mainwindow.cpp" line="4348"/>
-        <location filename="mainwindow.cpp" line="4370"/>
+        <location filename="mainwindow.cpp" line="4367"/>
-        <location filename="mainwindow.cpp" line="4415"/>
+        <location filename="mainwindow.cpp" line="4412"/>
         <source>tips</source>
         <translation>prompt</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2240"/>
+        <location filename="mainwindow.cpp" line="2266"/>
-        <location filename="mainwindow.cpp" line="2304"/>
+        <location filename="mainwindow.cpp" line="2330"/>
-        <location filename="mainwindow.cpp" line="2379"/>
+        <location filename="mainwindow.cpp" line="2405"/>
         <source>save succeed</source>
         <translation>Saved successfully</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2251"/>
+        <location filename="mainwindow.cpp" line="2277"/>
-        <location filename="mainwindow.cpp" line="2390"/>
+        <location filename="mainwindow.cpp" line="2416"/>
         <source>find savePath in thumbnail</source>
         <translation>Image name already exists in the list</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2414"/>
+        <location filename="mainwindow.cpp" line="2440"/>
         <source>Please select at least one picture before export</source>
         <translation>Please select at least one image and then export</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>File name</source>
         <translation>File name</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>File path</source>
         <translation>File path</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>File size</source>
         <translation>File size</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>Creation date/time</source>
         <translation>Creation time</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>Modified date/time</source>
         <translation>Modification time</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2475"/>
+        <location filename="mainwindow.cpp" line="2501"/>
         <source>Accessed date/time</source>
         <translation>Access time</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Format</source>
         <translation>Format</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Width</source>
         <translation>Width</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Height</source>
         <translation>Height</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>depth</source>
         <translation>Depth</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Color model</source>
         <translation>Color mode</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>DPI</source>
         <translation>Pixels per inch</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Print size</source>
         <translation>Print size</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2518"/>
+        <location filename="mainwindow.cpp" line="2544"/>
         <source>Frame</source>
         <translation>Frame</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2532"/>
+        <location filename="mainwindow.cpp" line="2558"/>
         <source>None</source>
         <translation>None</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2532"/>
+        <location filename="mainwindow.cpp" line="2558"/>
         <source>Mono</source>
         <translation>Black and white</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2532"/>
+        <location filename="mainwindow.cpp" line="2558"/>
         <source>Gray</source>
         <translation>Gray scale</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2532"/>
+        <location filename="mainwindow.cpp" line="2558"/>
         <source>Color</source>
         <translation>Color</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2539"/>
+        <location filename="mainwindow.cpp" line="2565"/>
         <source>Not supported</source>
         <translation>Not supported</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2573"/>
+        <location filename="mainwindow.cpp" line="2599"/>
         <source>Warning</source>
         <translation>Warning</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2573"/>
+        <location filename="mainwindow.cpp" line="2599"/>
         <source>Device is Running!
 Please finish scanning first.</source>
         <translation>Device is currently running!
 Please stop scanning first.</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2597"/>
+        <location filename="mainwindow.cpp" line="2623"/>
         <source>There are pictures that have not been saved.
 Are you sure to close?</source>
         <translation>There are unsaved images; are you sure you want to close?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2609"/>
+        <location filename="mainwindow.cpp" line="2635"/>
         <source>Are you sure to close?</source>
         <translation>Are you sure you want to close?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2894"/>
+        <location filename="mainwindow.cpp" line="2920"/>
         <source>Sure to sign out administrator account?</source>
         <translation>Are you sure you want to log out of the administrator account?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3279"/>
+        <location filename="mainwindow.cpp" line="3276"/>
         <source>Device is offline</source>
         <translation>Device is offline</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3284"/>
+        <location filename="mainwindow.cpp" line="3281"/>
         <source>Open failed</source>
         <translation>Open failed</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4206"/>
+        <location filename="mainwindow.cpp" line="4203"/>
         <source>The Device has reached roller life</source>
         <translation>The paper roller has reached its service life, and the frequency of abnormalities during the scanning process may increase. 
 Please contact the equipment supplier promptly to purchase a replacement paper roller!</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="1325"/>
+        <location filename="mainwindow.cpp" line="385"/>
-        <location filename="mainwindow.cpp" line="3279"/>
+        <location filename="mainwindow.cpp" line="1330"/>
-        <location filename="mainwindow.cpp" line="3284"/>
+        <location filename="mainwindow.cpp" line="3276"/>
-        <location filename="mainwindow.cpp" line="4206"/>
+        <location filename="mainwindow.cpp" line="3281"/>
+        <location filename="mainwindow.cpp" line="4203"/>
+        <location filename="mainwindow.cpp" line="4480"/>
         <source>Prompt</source>
         <translation>Prompt</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3215"/>
+        <location filename="mainwindow.cpp" line="3212"/>
         <source>&lt;p&gt;DriverVer: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;VerSion: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3225"/>
+        <location filename="mainwindow.cpp" line="3222"/>
-        <location filename="mainwindow.cpp" line="3233"/>
+        <location filename="mainwindow.cpp" line="3230"/>
-        <location filename="mainwindow.cpp" line="3240"/>
+        <location filename="mainwindow.cpp" line="3237"/>
         <source>&lt;p&gt;Vendor: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;Manufacturer/Developer: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3229"/>
+        <location filename="mainwindow.cpp" line="3226"/>
-        <location filename="mainwindow.cpp" line="3237"/>
+        <location filename="mainwindow.cpp" line="3234"/>
-        <location filename="mainwindow.cpp" line="3241"/>
+        <location filename="mainwindow.cpp" line="3238"/>
         <source>&lt;p&gt;Copyright: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;Copyright: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3228"/>
+        <location filename="mainwindow.cpp" line="3225"/>
-        <location filename="mainwindow.cpp" line="3236"/>
+        <location filename="mainwindow.cpp" line="3233"/>
-        <location filename="mainwindow.cpp" line="3242"/>
+        <location filename="mainwindow.cpp" line="3239"/>
         <source>&lt;p&gt;Company website: &lt;a href=%1&gt;%1&lt;/p&gt;</source>
         <translation>&lt;p&gt;Company URL: &lt;a href=%1&gt;%1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3226"/>
+        <location filename="mainwindow.cpp" line="385"/>
-        <location filename="mainwindow.cpp" line="3234"/>
+        <location filename="mainwindow.cpp" line="4480"/>
-        <location filename="mainwindow.cpp" line="3243"/>
+        <source>Device source not found!</source>
+        <translation>Device source not found!</translation>
+    </message>
+    <message>
+        <location filename="mainwindow.cpp" line="3223"/>
+        <location filename="mainwindow.cpp" line="3231"/>
+        <location filename="mainwindow.cpp" line="3240"/>
         <source>&lt;p&gt;Company address: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;Address: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3227"/>
+        <location filename="mainwindow.cpp" line="3224"/>
-        <location filename="mainwindow.cpp" line="3235"/>
+        <location filename="mainwindow.cpp" line="3232"/>
-        <location filename="mainwindow.cpp" line="3244"/>
+        <location filename="mainwindow.cpp" line="3241"/>
         <source>&lt;p&gt;Company telephone: %1&lt;/p&gt;</source>
         <translation>&lt;p&gt;Contact number: %1&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3245"/>
+        <location filename="mainwindow.cpp" line="3242"/>
         <source>&lt;p&gt;Company GPS: &lt;a href=%1&gt;%2&lt;/p&gt;</source>
         <translation>&lt;p&gt;Navigation address: &lt;a href=%1&gt;%2&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3245"/>
+        <location filename="mainwindow.cpp" line="3242"/>
         <source>Baidu map access</source>
         <translation>Baidu map access</translation>
     </message>
@@ -2870,23 +2878,23 @@ Please contact the equipment supplier promptly to purchase a replacement paper r
         <translation type="vanished">Total count: %1</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3574"/>
+        <location filename="mainwindow.cpp" line="3571"/>
         <source>Detected that there is less than 1GB of disk space. Do you want to continue?</source>
         <translation>Detected that there is less than 1GB of disk space. Do you want to continue?</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="367"/>
+        <location filename="mainwindow.cpp" line="368"/>
-        <location filename="mainwindow.cpp" line="4466"/>
+        <location filename="mainwindow.cpp" line="4464"/>
         <source>Device %1 is open</source>
         <translation>Device %1 is open</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2945"/>
+        <location filename="mainwindow.cpp" line="2971"/>
         <source>confirm operation</source>
         <translation>Confirm operation</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2946"/>
+        <location filename="mainwindow.cpp" line="2972"/>
         <source>are you sure to clear the roller count?</source>
         <translation>Are you sure you want to clear the roller count?</translation>
     </message>
@@ -2895,22 +2903,22 @@ Please contact the equipment supplier promptly to purchase a replacement paper r
         <translation type="vanished">Prompt</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2957"/>
+        <location filename="mainwindow.cpp" line="2983"/>
         <source>Roller scanned count has been set to 0.</source>
         <translation>Roller count reset to zero.</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="2961"/>
+        <location filename="mainwindow.cpp" line="2987"/>
         <source>Roller scanned count reset failed.</source>
         <translation>Failed to reset roller count.</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3048"/>
+        <location filename="mainwindow.cpp" line="3093"/>
         <source>Error</source>
         <translation>Error</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3048"/>
+        <location filename="mainwindow.cpp" line="3093"/>
         <source>Document missing! It would be deleted or renamed.</source>
         <translation>File lost! File may be deleted or renamed.</translation>
     </message>
@@ -2927,13 +2935,13 @@ Please contact the equipment supplier promptly to purchase a replacement paper r
         <translation type="vanished">About</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3854"/>
+        <location filename="mainwindow.cpp" line="3851"/>
         <source>cache path folder limit:%1</source>
         <translation>Unable to access the current path:%1
 Please try to log in to the administrator account in the [User] menu and go to the [Cache settings] to change the cache path.</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3858"/>
+        <location filename="mainwindow.cpp" line="3855"/>
         <source>aquireinto folder limit:%1</source>
         <translation>Unable to access the current path:%1
 Please try to change the cache path in [Scan to].</translation>
@@ -2947,7 +2955,7 @@ Please try to change the cache path in [Scan to].</translation>
         <translation type="vanished">&lt;p&gt;%1&lt;/p&gt;&lt;p&gt;Version: %2&lt;br&gt;Copyright: &amp;#169; %3&lt;/p&gt;&lt;p&gt;%4%5%6%7%8%9&lt;/p&gt;</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3213"/>
+        <location filename="mainwindow.cpp" line="3210"/>
         <source>about %1</source>
         <translation>About %1</translation>
     </message>
@@ -2992,13 +3000,13 @@ Please try to change the cache path in [Scan to].</translation>
         <translation type="vanished">failed</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3823"/>
+        <location filename="mainwindow.cpp" line="3820"/>
-        <location filename="mainwindow.cpp" line="3861"/>
+        <location filename="mainwindow.cpp" line="3858"/>
         <source>error</source>
         <translation>Error</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3824"/>
+        <location filename="mainwindow.cpp" line="3821"/>
         <source>start failed!</source>
         <translation>Failed to start!</translation>
     </message>
@@ -3008,52 +3016,52 @@ Please try to change the cache path in [Scan to].</translation>
 Please go to “Scan to” and change the accessible scan folder and then perform the scan.</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3938"/>
+        <location filename="mainwindow.cpp" line="3935"/>
         <source>Insufficient access rights</source>
         <translation>Insufficient file access permissions</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3942"/>
+        <location filename="mainwindow.cpp" line="3939"/>
         <source>Image processing failed</source>
         <translation>Image processing failed</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3946"/>
+        <location filename="mainwindow.cpp" line="3943"/>
         <source>Ocr init failed</source>
         <translation>OCR initialization error</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3950"/>
+        <location filename="mainwindow.cpp" line="3947"/>
         <source>Ocr failed</source>
         <translation>OCR failed</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3954"/>
+        <location filename="mainwindow.cpp" line="3951"/>
         <source>File does not exist</source>
         <translation>File does not exist</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3958"/>
+        <location filename="mainwindow.cpp" line="3955"/>
         <source>Failed to load dynamic library</source>
         <translation>Failed to load dynamic library</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3962"/>
+        <location filename="mainwindow.cpp" line="3959"/>
         <source>File data error</source>
         <translation>File data error</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3966"/>
+        <location filename="mainwindow.cpp" line="3963"/>
         <source>Image format processing error</source>
         <translation>Image format processing error</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3970"/>
+        <location filename="mainwindow.cpp" line="3967"/>
         <source>Out of memory</source>
         <translation>Insufficient memory</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="3974"/>
+        <location filename="mainwindow.cpp" line="3971"/>
         <source>Failed</source>
         <translation>Failed</translation>
     </message>
@@ -3074,18 +3082,18 @@ Please go to “Scan to” and change the accessible scan folder and then perfor
         <translation type="vanished">Close </translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4294"/>
+        <location filename="mainwindow.cpp" line="4291"/>
         <source>tip</source>
         <translation>Prompt</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4294"/>
+        <location filename="mainwindow.cpp" line="4291"/>
         <source>Other versions not available</source>
         <translation>No other versions obtained</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4314"/>
+        <location filename="mainwindow.cpp" line="4311"/>
-        <location filename="mainwindow.cpp" line="4330"/>
+        <location filename="mainwindow.cpp" line="4327"/>
         <source>The device does not support this operation</source>
         <translation>Operation failed</translation>
     </message>
@@ -3094,13 +3102,13 @@ Please go to “Scan to” and change the accessible scan folder and then perfor
         <translation type="vanished">IO error</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4352"/>
+        <location filename="mainwindow.cpp" line="4349"/>
-        <location filename="mainwindow.cpp" line="4371"/>
+        <location filename="mainwindow.cpp" line="4368"/>
         <source>The language switch is successful and takes effect the next time the software is started!</source>
         <translation>The language switch is successful and takes effect the next time the software is started!</translation>
     </message>
     <message>
-        <location filename="mainwindow.cpp" line="4415"/>
+        <location filename="mainwindow.cpp" line="4412"/>
         <source>Are you sure to delete selected file?</source>
         <translation>Are you sure to delete the selected file completely?</translation>
     </message>
@@ -3120,7 +3128,7 @@ Please go to “Scan to” and change the accessible scan folder and then perfor
     <name>Widget</name>
     <message>
         <source>zuobiaozhou</source>
-        <translation type="vanished">Coordinate axis</translation>
+        <translation>Coordinate axis</translation>
     </message>
 </context>
 <context>

app/scanner2/mainwindow.cpp

@@ -380,6 +380,10 @@ MainWindow::MainWindow(const QString& appLang, QWidget *parent)
             m_devUser = nullptr;
         }
     }
+    else
+    {
+        QMessageBox::information(this, tr("Prompt"), tr("Device source not found!"));
+    }
 
     QString password = getCfgValue("login", "password", QString(""));
     if (!password.isEmpty())
@@ -4471,6 +4475,10 @@ void MainWindow::on_act_selectDevice_triggered()
             delete devUser;
         }
     }
+    else
+    {
+        QMessageBox::information(this, tr("Prompt"), tr("Device source not found!"));
+    }
 
     this->setEnabled(true);
     m_canClose = true;