void GXDrawTransparentBitmap(CDC* pDC, CBitmap* pBitmap, int xStart, int yStart, COLORREF cTransparentColor);
pDC
Points to the device context.
pBitmap
Points to the CBitmap object.
xStart
Upper left x-coordinate for drawing the bitmap.
yStart
Upper left y-coordinate for drawing the bitmap.
cTransparentColor
Specifies the color for transparent pixels.
This function lets you draw transparent bitmaps. The parameter cTransparentColor specifies the color for transparent pixels. All pixels in the bitmap which are to be transparent should be marked with this color.
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