My goal is to draw a nice smooth gradient in an offscreen window and then copy it into my onscreen window.
Right now I calculate 24 colors for the gradient and then change the window's palette with WinPalette. I put the colors in starting at offset 232. Then I draw the gradient by using WinSetForeColor() with the appropriate color indices, and I draw lines into the offscreen window. I tested the line drawing code by using every index in the color table and it's clear that that code works ok. But... Once I'm done drawing the gradient offscreen I copy it to the onscreen window. The result is that I get a really banded version of the gradient, with around 5 bands of color instead of the 24 that I'm expecting. It looks to me as if the offscreen window and the onscreen window have different palettes. I tested out changing other colors in the onscreen window's palette and I am definitely able to change the palette. The other art in my program comes out differently depending on what I change. The offscreen window doesn't have a palette. I tried calling WinPalette while it was the current draw window and got this fatal error in POSE - "Draw window has no palette." I'm not sure what's going wrong and haven't found much advice about palettes online. Has anyone run into a similar problem or can you steer me in the right direction? Eric -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
