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10.23.2008 at 03:44AM PDT, ID: 23840202
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6.3

Print screen using win32

Asked by Sohela in Windows Programming

Tags: , ,

Hello,
I have to print a page to pdf file format i am able to do it but the output is coming like when we do print screen manually i dont want the whole screen normally if we give print onlt text comes not menu bars and title bars i want it like that only.I dont know where  to change.I think i should make changes in GetSystemMetrics () function but what i should give i dont know.Start Free Trial 
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void PrintScreen (HWND hWnd)
{
	HDC hScreenDC;
	if ((hScreenDC = GetDC (hWnd)) != NULL) {
		HDC hMemDC;
		if ((hMemDC = CreateCompatibleDC (hScreenDC))!= NULL) {
			HBITMAP hFullScreenBitmap;
 
			int iScreenWidth  = GetSystemMetrics (SM_CXFULLSCREEN);		   
			int iScreenHeight = GetSystemMetrics (SM_CYFULLSCREEN);		    			
			if ((hFullScreenBitmap = CreateCompatibleBitmap (hScreenDC, iScreenWidth, iScreenHeight)) != NULL) {
				HBITMAP hDefaultBitmap = (HBITMAP) SelectObject (hMemDC, hFullScreenBitmap);
 
				// From screen to memory:
				BitBlt (hMemDC, 0, 0, iScreenWidth, iScreenHeight, hScreenDC, 0, 0, SRCCOPY);
				SelectObject (hMemDC, hDefaultBitmap);
				SelectObject (hMemDC, hFullScreenBitmap);
 
				// Printing:
				PRINTDLG pd = {0}; // Reset on declare
 
				pd.lStructSize = sizeof (pd);
				pd.Flags = PD_RETURNDEFAULT | PD_ALLPAGES | PD_RETURNDC;
				pd.nFromPage = 1;
				pd.nToPage = 1;
				pd.nCopies = 1;
 
				if (PrintDlg (&pd)) {
					if (pd.hDC) {
						// Scaling to fit on a printer page:
						double dblScreenRatio = (double) iScreenWidth / (double) iScreenHeight;
						int xPrnPixelsPerPage = GetDeviceCaps (pd.hDC, PHYSICALWIDTH);
						int xPrnPixelsMargin = GetDeviceCaps (pd.hDC, PHYSICALOFFSETX);
						int yPrnPixelsMargin = GetDeviceCaps (pd.hDC, PHYSICALOFFSETY);
						int printedWidth = xPrnPixelsPerPage - xPrnPixelsMargin * 2;
						int printedHeight = (int) ((double) printedWidth / dblScreenRatio);
 
						DOCINFO di = {0};
 
						di.cbSize = sizeof (di);
						di.lpszDocName = "Print Full Screen";
 
						StartDoc (pd.hDC, &di);
						StartPage (pd.hDC);
 
						// FINALLY!
						StretchBlt (pd.hDC,
									xPrnPixelsMargin, yPrnPixelsMargin, printedWidth, printedHeight,
									hMemDC, 0, 0, iScreenWidth, iScreenHeight, SRCCOPY);
 
						EndPage (pd.hDC);
						EndDoc (pd.hDC);
						DeleteDC (pd.hDC);
					}
					// Clean up after print dlg:
					if (pd.hDevMode) {
						GlobalFree (pd.hDevMode);
					}
					if (pd.hDevNames) {
						GlobalFree (pd.hDevNames);
					}
				}
				SelectObject (hMemDC, hDefaultBitmap);
				DeleteObject (hFullScreenBitmap);
			}
			DeleteDC (hMemDC);
		}
		ReleaseDC (NULL, hScreenDC);
	}
}
[+][-]10.23.2008 at 04:36PM PDT, ID: 22791773

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About this solution

Zone: Windows Programming
Tags: Microsoft, Visual Studio .Net, 2003
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Solution Provided By: DanRollins
Participating Experts: 1
Solution Grade: B
 
 
[+][-]10.23.2008 at 09:24PM PDT, ID: 22793412

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