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I have a pure C++/Win32 VS2005 desktop application. During my WM_PAINT response, when I paint my window, I’d like to be able to Project a transparent PNG image onto my Window.
any pointer will be appreciated.
GdiPlus has been part of Windows since Windows XP at least, and can decode JPEG, PNG and GIF files with ease.
A newer API for dealing with image files is the Windows Image Component. One of the samples covers using WIC to decode an image and GdiPlus to perform the alpha aware painting.