CreatePatternBrush and screen color depth
- by Carlos Alloatti
I am creating a brush using CreatePatternBrush with a bitmap created with CreateBitmap.
The bitmap is 1 pixel wide and 24 pixels tall, I have the RGB value for each pixel, so I create an array of rgbquads and pass that to CreateBitmap.
This works fine when the screen color depth is 32bpp, since the bitmap I create is also 32bpp.
When the screen color depth is not 32bpp, this fails, and I understand why it does, since I should be creating a compatible bitmap instead.
It seems I should use CreateCompatibleBitmap instead, but how do I put the pixel data I have into that bitmap?
I have also read about CreateDIBPatternBrushPt, CreateDIBitmap, CreateDIBSection, etc.
I don´t understand what is a DIBSection, and find the subject generally confusing.
I do understand that I need a bitmap with the same color depth as the screen, but how do I create it having only the 32bpp pixel data?
