Windows API ---打印API

最近在给以个客户做一个POS机上的打印程序，其实现的简单思路大致如下：

void ComPrint()

{

 static int nIndex = 1;
 HDC dc;
 //  USES_CONVERSION; 
 DEVMODEW lpdevmodew;
 memset(&lpdevmodew, 0, sizeof(DEVMODEW));
 lpdevmodew.dmSize = sizeof(DEVMODEW);
 

 wcscpy( lpdevmodew.dmDeviceName, _T("XDLThermal Printer") );
 lpdevmodew.dmPaperSize   = 0;  // 0 means User Define
 lpdevmodew.dmPaperLength  = 800; //600  // Length for 1000 C.L
 lpdevmodew.dmPaperWidth   = 800;  // Width  80 mm
 lpdevmodew.dmPrintQuality = -4;

 DWORD status;
 DWORD dwRtn = PrinterStatus(&status);

 dc = CreateDC(TEXT("MyPrint.dll"), TEXT("XDL Thermal Printer"), TEXT("XDLBuild-In"), (DEVMODE *)(&lpdevmodew) ); //这个是驱动哦，这里不多说，直接CALL驱动的DLL就OK。

 if(dc == NULL)
 {
  //return 0;
 }
 DOCINFO di;
 LOGFONT lf;
 RECT  rt;

 di.cbSize = sizeof(DOCINFO);
 di.lpszDocName = TEXT("Hello World");
 ZeroMemory(&lf, sizeof(lf));
 lf.lfHeight = 40;
 lf.lfWidth  = 7;
 ::lstrcpy(lf.lfFaceName,_T("Arial"));

 HFONT hFont, hOldFont, hRMB, hOldRmb;

 // hFont = CreateFontIndirect(&lf);
 // hOldFont = (HFONT)SelectObject(dc, hFont);

 lf.lfHeight = 45;
 lf.lfWidth  = 8;
 lf.lfWeight = FW_BOLD;
 hRMB = CreateFontIndirect(&lf);
 hOldFont = (HFONT)SelectObject(dc, hRMB);

 StartDoc(dc, &di);
 StartPage(dc);

 rt.right = 700;
 rt.top    = 0;
 rt.bottom = 80;
 rt.left   = 0;

 // hOldFont = (HFONT)SelectObject(dc, hFont);
 SelectObject(dc, hRMB);
 TCHAR  szTemp[32] = {0};
    wsprintf(szTemp, _T("Print -- %i"), nIndex);
 DrawText(dc,szTemp, -1, &rt, DT_CENTER);
 /*
 for(int i=0; i<2; i++)
 {
  //打印宽度由rt.right决定
  DrawText(dc,TEXT("ABCDEFGHIJKLMNOPQRSTUVWXYZABCDEFGHIJKLMNOPQRSTUV"),-1,&rt, DT_WORDBREAK);
  OffsetRect(&rt, 0, 45);            //平移矩形，相当于换行
 }
 */
 SelectObject(dc, hOldFont); 
 EndPage(dc);
 EndDoc(dc);
 nIndex++;

 // DeleteObject(hFont);
 DeleteObject(hRMB);
 DeleteDC(dc);
 return 0;

}

 

VOID EndPrint(HWND hWnd,HINSTANCE hInst,HDC hdc,HFONT hFont,HFONT hLargeFont,HFONT hOldFont,DWORD dwMessage)
{

  SelectObject(hdc,hOldFont);
 EndPage(hdc);
 EndDoc(hdc);

 DeleteObject(hFont);
 DeleteObject(hLargeFont);
 DeleteDC(hdc);
  WaitForPrinter(hWnd);
}