source10.cpp

又VC＋＋实现的基于TWAIN的扫描仪图像输入处理软件

// source10.cpp : Defines the initialization routines for the DLL.
//

#include "stdafx.h"

#include "twain.h"
#include "source10.h"
#include "TitleDlg.h"
//#include "SetValue.h"
#include "SetScanner.h"
#include "Twd_type.h"
//#include "Prot.h"

// Extern Function Prototypes -------------------------------------------
extern void LogMessage(char msg[]);

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif
/////////////////////////////////////////////////////////////
#define NUM_PIXTYPES    4   // size of number of pixel types array


/*** Global variables *///
HANDLE          hDSInst;    		// Keep track of who we are
HPALETTE        hDibPal;    		// Color palette handle
UINT TimerOut = 9999;        		// timeout value for message boxes
char SourceControl[MAX_TWPATH] = {'\0'}; 	

// Support for pixel types TW_ARRAY container
//TW_ARRAY    PixelTypesTWArray={TWTY_UINT16, NUM_PIXTYPES, {57}};
//TW_UINT16   PixelTypesList[NUM_PIXTYPES]={TWPT_BW, TWPT_GRAY, TWPT_RGB,
//					   TWPT_PALETTE};

/*** Global variables - Source Environment 	 ***/
TW_IDENTITY     dsIdentity;     // 数据源标志
TW_IDENTITY     appIdentity;    // 驱动数据源的应用程序
TW_STATUS       twStatus = {TWCC_SUCCESS, FALSE};//状态信息


/*** External stuff    ***/
extern MAPPER ControlMap[];
extern MAPPER ImageMap[];
extern HANDLE hImageDlg;



/////////////////////////////////////////////////////////////////////////////
// CSource10App

BEGIN_MESSAGE_MAP(CSource10App, CWinApp)
	//{{AFX_MSG_MAP(CSource10App)
		// NOTE - the ClassWizard will add and remove mapping macros here.
		//    DO NOT EDIT what you see in these blocks of generated code!
	//}}AFX_MSG_MAP
END_MESSAGE_MAP()

/////////////////////////////////////////////////////////////////////////////
// CSource10App construction

CSource10App::CSource10App()
{
	// TODO: add construction code here,
	// Place all significant initialization in InitInstance
}

/////////////////////////////////////////////////////////////////////////////


CSource10App theApp;
//////////////////////////////////////////////////////////////////////////////
//根据数据源的入口函数入口调用分发函数
TW_UINT16 CALLBACK DS_Entry(pTW_IDENTITY pSrc, TW_UINT32    DG,
			      TW_UINT16    DAT,  TW_UINT16    MSG,
			      TW_MEMREF    pData)
{

    TW_UINT16 twRc;
	TWMSG     twMsg;
	char* pTempMem=NULL;
   
    if ((!appIdentity.Id) || (appIdentity.Id == pSrc->Id))//应用程序调用 
    {
        if (MSG == MSG_PROCESSEVENT)
        {
			LogMessage("Process event message at source\r\n");

			//数据源句柄所对应的对话框
            if (hImageDlg && IsDialogMessage((struct HWND__ *)hImageDlg, (LPMSG)(((pTW_EVENT)pData)->pEvent)))
            {
	        	LogMessage("Process event Message directed to data source dialog\r\n");

	            twRc = TWRC_DSEVENT;
                // you should, for proper form, return
                // a MSG_NULL for all windows messages processed by the Data Source
                // NOTE: could slip by with a default case in the App and no MSG_NULL
                //       but that would be cheating!!
                //
	            ((pTW_EVENT)pData)->TWMessage = MSG_NULL;
            }
            else
            {
				LogMessage("Process event message at source\r\n");

	            twRc = TWRC_NOTDSEVENT;
            }
		}
		else
		{
			// Reset the condition code
			if (DG != DG_CONTROL && DAT != DAT_STATUS)
			{
			  twStatus.ConditionCode = TWCC_SUCCESS;
              
			}
           
			//为分发函数建立消息结构
			twMsg.pSrc  = pSrc;
			twMsg.DG    = DG;
    		twMsg.DAT   = DAT;
			twMsg.MSG   = MSG;
			twMsg.pData = pData;
      
			// Route the Source message.
			if (DG == DG_CONTROL)
			{
				twRc = Dispatch(&twMsg, ControlMap, DAT);
			}
			else
				if (DG ==  DG_IMAGE)
				{
					twRc = Dispatch(&twMsg, ImageMap, DAT);
				}
				else
				{
					twStatus.ConditionCode = TWCC_BADPROTOCOL;
					twRc = TWRC_FAILURE;
				}//End of else of the if (DG ==  DG_IMAGE)

		}//End of else of the if (MSG == MSG_PROCESSEVENT)    
	}//End of if ((!appIdentity.Id) || (appIdentity.Id == pSrc->Id))
  
else
{														
    twStatus.ConditionCode = TWCC_BADPROTOCOL;
    twRc = TWRC_FAILURE;
}

  return twRc;
} 

/////////////////////////////////////////////////////////////////
//Do the follow instructs when the data source was invoked
// by the data source manager.
//
BOOL CSource10App::InitInstance() 
{
	// Initialize any necessary globals
	//hDSInst = hModule;	hModule is the handle of the DLLMAIN();
       

	   hDSInst=m_hInstance;
     
   	// state 3

   	// Clear out calling app's identity
   	appIdentity.Id = 0L;

   	// Setup Source's identity and group supported
   	dsIdentity.Id = 0L;
	dsIdentity.ProtocolMajor   = TWON_PROTOCOLMAJOR;
	dsIdentity.ProtocolMinor   = TWON_PROTOCOLMINOR;
   	dsIdentity.Version.MajorNum = 1;
  	dsIdentity.Version.MinorNum = 0;
	dsIdentity.Version.Language = TWLG_USA;
	dsIdentity.Version.Country  = TWCY_USA;
   	dsIdentity.SupportedGroups = DG_CONTROL | DG_IMAGE;
   	
	LoadString((struct HINSTANCE__ *)hDSInst, VERSION_INFO, dsIdentity.Version.Info, sizeof(TW_STR32));
	LoadString((struct HINSTANCE__ *)hDSInst, MANUFACTURER, dsIdentity.Manufacturer, sizeof(TW_STR32));
	LoadString((struct HINSTANCE__ *)hDSInst, PRODFAMILY,  dsIdentity.ProductFamily, sizeof(TW_STR32));
	LoadString((struct HINSTANCE__ *)hDSInst, PRODNAME, dsIdentity.ProductName, sizeof(TW_STR32));

      // pTitleDlg = new	CTitleDlg(NULL);
	   // pTitleDlg->Create(CTitleDlg::IDD,NULL); 
      
	return(1);

}