241 lines
11 KiB
C++
241 lines
11 KiB
C++
// hugaotwainds.cpp: 定义 DLL 的初始化例程。
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//
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#include "stdafx.h"
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#include "hugaotwainds.h"
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#include "afxshellmanager.h"
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#include "afxvisualmanager.h"
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#include "afxvisualmanagerwindows.h"
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#include "TwainUIDlg.h"
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#include "PublicFunc.h"
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//#include "UI_INI.h"
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#include "JsonConfig.h"
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#include <memory>
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#include <io.h>
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#include <list>
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#ifdef _DEBUG
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#define new DEBUG_NEW
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#endif
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typedef struct _DS_inst
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{
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TW_IDENTITY AppId;
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CTWAINDS_Base *pDS;
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}DS_inst;
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typedef list<DS_inst> lstDS;
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lstDS g_lstDS;
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#ifdef TWH_CMP_MSC
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/**
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* gloadbal Windows Instance handle for the DSM DLL...
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*/
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HINSTANCE g_hinstance = 0;
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#endif
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//
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//TODO: 如果此 DLL 相对于 MFC DLL 是动态链接的，
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// 则从此 DLL 导出的任何调入
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// MFC 的函数必须将 AFX_MANAGE_STATE 宏添加到
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// 该函数的最前面。
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//
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// 例如:
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//
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// extern "C" BOOL PASCAL EXPORT ExportedFunction()
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// {
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// AFX_MANAGE_STATE(AfxGetStaticModuleState());
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// // 此处为普通函数体
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// }
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//
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// 此宏先于任何 MFC 调用
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// 出现在每个函数中十分重要。 这意味着
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// 它必须作为以下项中的第一个语句:
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// 出现，甚至先于所有对象变量声明，
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// 这是因为它们的构造函数可能生成 MFC
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// DLL 调用。
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//
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// 有关其他详细信息，
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// 请参阅 MFC 技术说明 33 和 58。
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//
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// ChugaotwaindsApp
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BEGIN_MESSAGE_MAP(ChugaotwaindsApp, CWinApp)
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END_MESSAGE_MAP()
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// ChugaotwaindsApp 构造
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ChugaotwaindsApp::ChugaotwaindsApp()
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{
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// TODO: 在此处添加构造代码，
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// 将所有重要的初始化放置在 InitInstance 中
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}
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// 唯一的 ChugaotwaindsApp 对象
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ChugaotwaindsApp theApp;
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// ChugaotwaindsApp 初始化
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//CUI_INI* m_pUI_INI;
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BOOL ChugaotwaindsApp::InitInstance()
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{
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CWinApp::InitInstance();
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TCHAR szIniFile[MAX_PATH] = { 0 };
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TCHAR szIniData[MAX_PATH]={0};
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//if (m_pUI_INI==NULL)
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{
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DWORD dwRet = 0x0L;
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SHGetSpecialFolderPath(NULL, szIniFile, CSIDL_LOCAL_APPDATA, TRUE);//CSIDL_COMMON_DOCUMENTS
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_tcscat(szIniFile, HUAGAO_SCAN);
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strcpy(szIniData,szIniFile);
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BOOL rlt=access(szIniFile, 0);
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if (rlt!=0)//未找到路径
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{
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if (!CreateDirectory(szIniFile,NULL))
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{
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return FALSE;
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}
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_tcscat(szIniData,TWAIN_DATA_PATH);
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if (!CreateDirectory(szIniData,NULL))
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{
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return FALSE;
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}
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_tcscat(szIniFile,TWAIN_INIPATH);
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if (CreateDirectory(szIniFile,NULL))
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{
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_tcscat(szIniFile, TEXT("\\"));
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_tcscat(szIniFile, TWAIN_JSON_NAME);
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if (rlt!=1)
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{
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JsonConfig js;
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CONFIGPARAMS cfp=js.GetDefaultConfigParams();
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std::string path(szIniFile);
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js.WriteToJson(&cfp,path,false);
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}
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}
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else
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{
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return FALSE;
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}
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}
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}
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return TRUE;
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}
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BOOL ChugaotwaindsApp::PreTranslateMessage(MSG * pMsg)
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{
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return CWinApp::PreTranslateMessage(pMsg);
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}
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//////////////////////////////////////////////////////////////////////////////
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//退出程序
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int ChugaotwaindsApp::ExitInstance()
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{
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return CWinApp::ExitInstance();
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}
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//////////////////////////////////////////////////////////////////////////////
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// This is the main entry point. This function is dlsym'd by the DSM.
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#ifdef TWH_CMP_MSC
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TW_UINT16 FAR PASCAL
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#else
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FAR PASCAL TW_UINT16
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#endif
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DS_Entry(pTW_IDENTITY _pOrigin,
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TW_UINT32 _DG,
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TW_UINT16 _DAT,
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TW_UINT16 _MSG,
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TW_MEMREF _pData)
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{
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AFX_MANAGE_STATE(AfxGetStaticModuleState());
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CTWAINDS_Base* pTWAINLayer = 0;
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if (_pOrigin)
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{
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lstDS::iterator llIter = g_lstDS.begin();
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for (; llIter != g_lstDS.end(); llIter++)
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{
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if ((*llIter).AppId.Id == _pOrigin->Id)
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{
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pTWAINLayer = (*llIter).pDS;
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}
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}
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}
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// Curently we are not open
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if (0 == pTWAINLayer)
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{
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// Special case DSM can request to get identity information about
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// DS before it is open. In this special case, where the DS is not
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// open, we return this static Idenity.
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if (DG_CONTROL == _DG && DAT_IDENTITY == _DAT && MSG_GET == _MSG)
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{
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// Copy the ID assigned by the DSM eventhough the spec states
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// that the id will not be assigned until MSG_OPENDS
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CTWAINDS_Base::m_TheIdentity.Id = ((pTW_IDENTITY)_pData)->Id;
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memcpy(_pData, &CTWAINDS_Base::m_TheIdentity, sizeof(CTWAINDS_Base::m_TheIdentity));
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return TWRC_SUCCESS;
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}
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// The DS is not open. If we get a request to close DS do not open
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// just to close, instead return that it is success closed.
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if (DG_CONTROL == _DG && DAT_IDENTITY == _DAT && MSG_CLOSEDS == _MSG)
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{
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return TWRC_SUCCESS;
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}
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// Open the DS
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pTWAINLayer = new CTWAINDS_FreeImage(*_pOrigin);
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if (NULL == pTWAINLayer
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|| TWRC_SUCCESS != pTWAINLayer->Initialize())
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{
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// Failed to create the DS
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//setConditionCode(TWCC_LOWMEMORY);
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if (pTWAINLayer)
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{
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// Created but could not Initialize
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delete pTWAINLayer;
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}
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return TWRC_FAILURE;
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}
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DS_inst _DS;
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_DS.pDS = pTWAINLayer;
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_DS.AppId = *_pOrigin;
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g_lstDS.push_back(_DS);
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}
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// If we were not open before, we are now, so continue with the TWAIN call
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TW_INT16 result = pTWAINLayer->DS_Entry(_pOrigin, _DG, _DAT, _MSG, _pData);
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/**
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* Special case - free memory if closing DS
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* @todo keep track of what apps are connecting to the ds and only
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* delete when count goes down to 0
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*/
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if (TWRC_SUCCESS == result &&
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DG_CONTROL == _DG && DAT_IDENTITY == _DAT && MSG_CLOSEDS == _MSG &&
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NULL != pTWAINLayer)
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{
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lstDS::iterator llIter = g_lstDS.begin();
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for (; llIter != g_lstDS.end();)
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{
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if ((*llIter).AppId.Id == _pOrigin->Id)
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{
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delete (*llIter).pDS;
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llIter = g_lstDS.erase(llIter);
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continue;
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}
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llIter++;
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}
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}
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return result;
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} |