I spent some time searching and testing my code (it is a rather big application) and just found that some widgets derived from Fl_Box have a custom draw() method which calls make_current() on the window to use fl_begin_polygon ()etc. I know it is not compatible with Fl_Dobuble_Window() (it is curious that it worked on Win32). Now the question is, is there any simple work around to this?, I mean using this drawing functions with double-buffered windows. Thanks
> On 05/28/12 07:45, David Lopez wrote: > > Hi, > > I wrote a code that uses FLTK 1.3. > > The main window is derived from Fl_Double_Window. It works fine in Windows > > but in Linux no widget is displayed or just one or two. > > All the widgets appear only as flashes while the window is redrawn for > > example when is moved. > > If I change Fl_Double_Window to Fl_Window everything works fine both in > > Linux and Windows. > > By the way, the Fl_Double_Window example works fine in my Linux systems so > > it is not a problem with the library, but with my code. > > Can some one realize what the problem could be? > > If the example code is small and compilable, paste it here. > If it's large, try to reduce it. > > Typically weird drawing behavior can be caused by: > > > Bad grouping (widgets positioned outside their parent's xywh > area) > > handle() overrides that aren't passing events through it > properly > > Pointer overruns > > An example of bad grouping might be: > > grp = Fl_Group(100,100,100,100); > but = new Fl_Button(10,10,100,100); // BAD: button outside > the parent's xywh > grp->end(); > > _______________________________________________ fltk mailing list [email protected] http://lists.easysw.com/mailman/listinfo/fltk
