CompuServe Messages

Gary, why fiddling around with colormaps ? Just read the current values with GetRGB4() and push them in a rotating manner into a colortable, then call LoadRGB4(). Thats all. You cannot directly move around colors in colormaps, because they are hardware specific structures and you should not count on them to be anything you can understand. You only may use SetRGB4CM() to set colors in a colormap before it is linked to a viewport. Beginning with OS 2.0, first of all, you must tell the colormap about the viewport it will be linked to using VideoControl(). After all, you can link it into the ViewPort and call MakeVPort() to display the new colors. So, if you let your display being set up by intuition, best thing is leaving the colormaps untouched. SetRGB4() and LoadRGB4() only work with the colormap already attached to the viewport (in your case intuition has done this for you), and will refresh the colors automagically. – wkc – … via AP from Hamburg, Germany