void CPrintfFileTextDlg: : OnBnClickedButton1 () 
{
CPrintDialog printDlg (FALSE); 
//get the default print attributes, 
 print Windows not being displayed//printDlg GetDefaults (); 
//or from the user access to 
If (printDlg DoModal ()==IDCANCEL) 
return; 
The CDC dc; 
if (! Dc. Attach (printDlg GetPrinterDC ())) 
{
MessageBox (_T (" found no printer!" ), _T (" tip ")); 
return; 
} 
Dc. M_bPrinting=TRUE; 
DOCINFO di; 
//initialize the print documents detailed information 
: : ZeroMemory (& amp; Di, sizeof (DOCINFO)); 
Di. CbSize=sizeof (DOCINFO); 
Di. LpszDocName=_T (" label printing "); 
BOOL bPrintingOK=dc. StartDoc (& amp; Di);//start a new print job 
//get print range and stored in the object of CPrintInfo 
CPrintInfo Info; 
Info. SetMaxPage (1); Only one page////get all the pixels 
Int maxw=dc. GetDeviceCaps (HORZRES); 
Int maxh=dc. GetDeviceCaps (VERTRES); 
//set the paper print size 
Info. M_rectDraw. SetRect (0, 0, maxw maxh); 
//
For (UINT page=Info. GetMinPage (); Page & lt;=Info. GetMaxPage () & amp; & 
BPrintingOK; Page++) 
{
Dc. StartPage ();//start a new page 
Info. M_nCurPage=page; 
CImage Img. 
Img. Load (_T (" d://22. PNG ")); 
HBITMAP hBitm; 
HBitm=Img. Detach ();//separation bitmap handle 
CBitmap bitmap. 
Bitmap. The Attach (hBitm);//attach a bitmap handle 
BITMAP bm. 
Bitmap. GetBitmap (& amp; Bm); 
Int w=bm. BmWidth; 
Int h=bm. BmHeight; 
//create a memory device context 
The CDC memDC; 
MemDC. CreateCompatibleDC (& amp; Dc); 
CBitmap * pBmp=memDC. SelectObject (& amp; Bitmap); 
MemDC. SetMapMode (dc) GetMapMode ()); 
Dc. SetStretchBltMode (HALFTONE); 
//now stretched to the maximum width of the page 
Dc. StretchBlt (0, 0, maxw maxh, & amp; MemDC, 0, 0, w, h, SRCCOPY); 
//clean up 
MemDC. SelectObject (pBmp); 
BPrintingOK=(dc EndPage () & gt; 0);//the end page 
} 
If (bPrintingOK) 
Dc. EndDoc ();//end print job 
The else 
Dc. AbortDoc ();//suspended card 

At the start of print jobs there, VS all CARDS collapse, nasty, how to solve

CodePudding user response:

The CDC: : EndPage Return Value Greater than or equal to zero if successful ;

BPrintingOK=(dc EndPage () & gt;= 0);//the end page