Ben Combee a écrit : > At 10:29 PM 2/19/2005, you wrote: > >When my app initializes its preferences for the first time, it computes > >color indexes based on certain RGB values. By calling WinRGBToIndex, I > >am sure to get indexes based on the current screen resolution. This > >works fine on real devices, but POSE brings up a fatal alert (with no > >Continue button, just Debug and Reset) stating that I called a Win API > >before establishing a valid draw window. I'm not drawing anything, just > >performing RGB conversions. Should I worry? Since I found no way of > >turning off this specific error detection, I should minimaly detect > >whether I'm running on POSE and skip that code that prevents any further > >debugging. > > The pointer to the palette table used in the RGB lookup is in the current > draw window structure, so without a draw window, the system can't do the > conversion. As Chris noted, setting a draw window based on the full screen > is the proper approach to get something setup in the absense of a drawn form.
Even that is not enough. I tried calling WinSetDrawWindow(WinGetDisplayWindow()) just before calling my init routine, and yet, POSE still stops on the first call to WinRGBToIndex again asking for a valid draw window. -- Luc Le Blanc -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
