how to caputure scrollview including unvisible area?

[rambojanggoon]

Hi, I'd like to how caputre scrollview area, incluing unvisible area... scrollview size is nomally big than actually monito's resoluton, unvisible area don't captured...

CRect rect;
HWND	hWnd = m\_hWnd; // m\_hWnd is hanle of scrollview. 
if (hWnd == NULL) return;

HDC hScrollView = ::GetWindowDC(hWnd);
HDC hCaptureDC = CreateCompatibleDC(hScrollView);

CRect m\_rDrawingSurface;	
::GetWindowRect(hWnd,&m\_rDrawingSurface);

BITMAPINFOHEADER BMIH; 
HBITMAP m\_hCaptureBitmap;
BYTE\* m\_pDrawingSurfaceBits;

CDC\* pDC = GetDC();
if(pDC != NULL)
{
	BMIH.biSize = sizeof(BITMAPINFOHEADER);
	BMIH.biBitCount = 24;
	BMIH.biPlanes = 1;
	BMIH.biCompression = BI\_RGB;
	BMIH.biWidth = m\_rDrawingSurface.Width();
	BMIH.biHeight = m\_rDrawingSurface.Height();
	BMIH.biSizeImage = ((((BMIH.biWidth \* BMIH.biBitCount) + 31) & ~31) >> 3) \* BMIH.biHeight;
	m\_hCaptureBitmap = CreateDIBSection(pDC->GetSafeHdc(), (CONST BITMAPINFO\*)&BMIH, DIB\_RGB\_COLORS, (void\*\*)&m\_pDrawingSurfaceBits, NULL, 0);
	ReleaseDC(pDC);
}

SelectObject(hCaptureDC,m\_hCaptureBitmap); 
BitBlt(hCaptureDC,
	0,
	0,
	m\_rDrawingSurface.Width(),
	m\_rDrawingSurface.Height(),
	hScrollView,0, 0,SRCCOPY|CAPTUREBLT); 

CxImage \*image = new CxImage();
if(m\_hCaptureBitmap)
{
	image->CreateFromHBITMAP(m\_hCaptureBitmap);
	bool retval;

	retval = image->Save("c:\\\\ss.bmp", CXIMAGE\_FORMAT\_JPG);
}
if (image) delete image;



::ReleaseDC(hWnd,hDesktopDC);
DeleteDC(hCaptureDC);
DeleteObject(m\_hCaptureBitmap); :)