[comp.windows.x] Redraw Lines

stsai@umn-cs.CS.UMN.EDU (Fung Tsai) (05/19/89)

     I have difficulty redraw lines (XDrawLine) on a form widget after
destroying (using XtDestroyWidget) an upper form above that form widget.
When I remove the upper form and redraw lines, they do not appear.

     The Display id, Window id, and GC are all correct, and XFlush is
executed after XDrawLine commands.

     Could anyone give me suggestions how to solve this problem ?

     Thanks so much !!

stsai@umn-cs