I cannot figure out how to marshal a C++ CBitmap to a C# Bitmap or Image class.
My import looks like this:
[DllImport(@"test.dll", CharSet = CharSet.Unicode)] public static extern IntPtr GetBitmap(System.IntPtr hwnd, int nBMPWIDTH, int nBMPHEIGHT);
The H file section looks like:
Cbitmap* GetBitmap（HWND hwnd,int nBMPWIDTH,int nBMPHEIGHT）；
How do I go about converting the Cbitmap into something I can display in C#?
Many thanks.
The closest API in the .NET Framework is Image.FromHbitmap, but this would require you to extract the HBITMAP from the CBitmap, which you can t do in C# (at least not without knowing the internals of CBitmap). If it s possible for you to modify your C++ GetBitmap function to return the HBITMAP rather than the CBitmap wrapper, that would be the easiest solution. Is that an option for you?
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