"Sangwon Lee" <[EMAIL PROTECTED]> wrote in message news:66298@palm-dev-forum... > > Hi guys, > > I made a bitmap family that contains only 8 bit color image. > Under Palm OS 3.5 debug Rom, if I set the screen depth to > 4 bit or 2 bit, it seems to convert the color image in the > bitmap family into grey scale image in proper depth. > > so, I thought it is very cool, because I don't need to include > grey scale images for non-color devices, reducing app size > provided that the minimum OS requirement is 3.5. > > but, under Palm OS 4.0 debug Rom, it complained about > "bad window." > > my question is, the behavior I observed under Palm OS 3.5 debug > Rom is not supposed to be that way? or is Palm OS 4.0 debug > Rom is not backward-compatible?
The debug ROM for each version of Palm OS catches more problems than the previous version, as the Palm OS programmers find more ways to add tests for things that can break. The "bad window" error message you're getting from OS 4.0 comes from an internal call that validates a window handle. Could you provide a stack trace of the point where you're getting the error. That would help us determine what's really wrong. -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/tech/support/forums/
