AfxDrawDitheredBitmap
Visual Studio .NET 2003
Draws a bitmap, replacing its background with a dithered (checker) pattern.
void AFXAPI AfxDrawDitheredBitmap( CDC *pDC, int x, int y, const CBitmap &rSrc, COLORREF cr1, COLORREF cr2 );
Parameters
- pDC
- Points to the destination DC.
- x
- The destination x-coordinate.
- y
- The destination y-coordinate.
- rSrc
- The source bitmap.
- cr1
- One of the two dither colors, typically white.
- cr2
- The other dither color, typically light gray (COLOR_MENU).
Remarks
The source bitmap is drawn on the destination DC with a two-color (cr1 and cr2) checkered pattern replacing the bitmap's background. The background of the source bitmap is defined as its white pixels and all pixels matching the color of the pixel in the upper-left corner of the bitmap.

Example
void CProject1View::OnDraw(CDC* pDC)
{
CBitmap bm;
bm.LoadBitmap(IDB_BITMAP1);
AfxDrawDitheredBitmap(pDC, 10, 50, bm, RGB(255,255,255),
GetSysColor(COLOR_MENU));
}
See Also
MFC Macros and Globals | Gray and Dithered Bitmap Functions | AfxGetDitheredBitmap | AfxDrawGrayBitmap