srantala
asked on
256-color CBitmapButton
How I can use more than 20-color bitmapbutton in 8bit-mode? In better than 8bit everything works fine. MFC seems to reduce colours when I start application.
AVaulin
MFC don't reduce colours. It may be Windows does. To remove any problems convert your image to standard 256 palette.
ASKER
All the pictures have been made with the standard 256-palette. BitmapButton just doesn't show all of them.
ASKER
All the pictures have been make with the standard 256-colour-palette. BitmapButton just doesn't show all of them.
Do you use bitmaps with compression? If yes try to save bitamps without compression.
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To chensu:
Why do you think that there is no standard 256 colors palette? You can choose 16 colors palette from 64 available colors and you can choose 256 colors palette from (don't remember how much) available colors too.
Why do you think that there is no standard 256 colors palette? You can choose 16 colors palette from 64 available colors and you can choose 256 colors palette from (don't remember how much) available colors too.
To AVaulin:
Windows reserves standard 20 colors for system use (window titles, menus, ...) in a palette. The other colors are arbitrary. If an application has its own 256 colors palette, it must process WM_QUERYNEWPALETTE and WM_PALETTECHANGED messages.
Windows reserves standard 20 colors for system use (window titles, menus, ...) in a palette. The other colors are arbitrary. If an application has its own 256 colors palette, it must process WM_QUERYNEWPALETTE and WM_PALETTECHANGED messages.