Progress
Programming
Handbook


Systems without the Palette Manager

On systems that do not support the Palette Manager, Windows can only display 16 standard colors. However, if you request another color, Windows tries to create that color by dithering; that is, by filling a space with dots of different hues. This might work well, for example, in a frame background. However, if a field-level widget, such as a fill-in or radio set, inherits a dithered color, only one hue is used. The result might be undesirable. Therefore, avoid using dithered colors for field-level widgets.


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