Need some help with Windows bitmaps...

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Mr Errors Writer Man

I have coded a lot with Windows GDI, but I am not sure I understand what your question really is.

You can create a memory bitmap with DC handle like this (pseudocode):


; SomehDC is the DC of some bitmap with desired properties (bit depth etc)

Bitmap = CreateCompatibleBitmap(SomehDC,Width,Height)

hBitmap = GetObjectA(Bitmap,Len(SampleBitmap),SampleBitmap)


; Let's make a DC for the bitmap
hDC = CreateCompatibleDC(SomehDC)
SelectObject(hDC,Bitmap)



SampleBitmap is just an empty variable of this 14 byte long (Visual Basic) type:

    Type
            bmType As Long
            bmWidth As Long
            bmHeight As Long
            bmWidthBytes As Long
            bmPlanes As Integer
            bmBitsPixel As Integer
            bmBits As Long
    End Type