sarrazip
asked on
Converting 65536/256-color bitmap to 16 colors under Win16
Under Win16, I have a 65536-color or 256-color bitmap
(of size 32x32 because it's an icon's XOR mask) and I
want to convert it to a 16-color bitmap (I need to write
a 16-color XOR mask into a .ICO file). I am using Visual
C++ 1.52c under Windows 95/3.1.
What is the algorithm in C/C++ to do this?
(of size 32x32 because it's an icon's XOR mask) and I
want to convert it to a 16-color bitmap (I need to write
a 16-color XOR mask into a .ICO file). I am using Visual
C++ 1.52c under Windows 95/3.1.
What is the algorithm in C/C++ to do this?
ASKER CERTIFIED SOLUTION
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ASKER
GetSystemPaletteEntries() to obtain a COLORREF
from a 16-bit entry, using the HDC returned by GetDC(),
but it fails.
Anyway, I have found a different method that involves
GetBitmapBits() and CreateBitmap() and no HDCs, assuming
that the goal is to produce a .ICO file.
Thanks.