> > You need to WinSaveBits the screen before changing depth, and > > WinRestoreBits afterwards. But the WinSaveBits may fail due to > > not enough memory. So in that case you have to post a > > frmUpdateEvent instead of calling WinRestoreBits. > > I thought that since I am using the Frm functions, they handled saving > the bits and/or posting the FrmUpdate event automatically (depending > on whether my form has "Save Behind" checked and available system > memory) - is this not so?
WinScreenMode is not a Frm function. :-) As far as the Frm functions go, if you use them correctly then yes [the form's initial] FrmDrawForm() saves the bits behind the form, and the default handler for frmCloseEvent restores the bits or notifies the form behind it to update itself. -- For information on using the Palm Developer Forums, or to unsubscribe, please see http://www.palmos.com/dev/support/forums/
