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code_app
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微调

This commit is contained in:
luoliangyi 2023-04-04 14:45:01 +08:00
parent 290b75ee1a
commit e2e0a53772
1 changed files with 24 additions and 1 deletions
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25
app/demo/device_user.cpp
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@ -1,4 +1,5 @@
#include "device_user.h"
#include <QMessageBox>
#if defined(HG_CMP_MSC)
@ -87,6 +88,28 @@ class DeviceUser* DeviceUserMgr::OpenDeviceUser()
if (nullptr == source)
return nullptr;
HGUInt devCount = 0;
HGSane_GetDeviceCount(source, &devCount);
if (0 == devCount)
{
HGSane_CloseSource(source);
return nullptr;
}
else if (1 == devCount)
{
HGChar errInfo[256];
HGSaneDevice dev = nullptr;
HGSane_OpenDevice(source, 0, &dev, errInfo, 256);
if (nullptr == dev)
{
HGSane_CloseSource(source);
QMessageBox::information(m_wnd, tr("tips"), tr(errInfo));
return nullptr;
}
return new DeviceUser(m_wnd, source, dev);
}
HGSaneDevice dev = nullptr;
HGSane_OpenSelectedDevice(source, m_wnd, &dev);
if (nullptr == dev)
@ -116,7 +139,7 @@ DeviceUser::~DeviceUser()
QString DeviceUser::GetName()
{
HGChar devName[256];
HGSane_GetDeviceName(m_saneDev, devName, 256);
HGSane_GetSourceName(m_source, devName, 256);
return QString(devName);
}