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Help with GDI+ with c++

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I'm looking for a way to make the the color black of my bitmaps transparent using GDI+. I know I was able to do that with GDI using this tutorial: http://winprog.org/tutorial/transparency.html Surely, there has to be a way to achieve the same result with GDI+?

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Try using TransparentBlt or AlphaBlend functions in GDI or in GDI+,

http://msdn.microsoft.com/en-us/library/ms533798(VS.85).aspx,

you need to set the ImageAttributes.SetColorKey for the Graphics.DrawImage.

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