I have found that adding a forced "invalidate" can help with updates, but there appears to be no consistent way. Between driver updates it changes as well (OpenSuSE, and ATI). Sometimes it updates far too much.
gdk_window_invalidate_rect (drawingarea3->window, &drawingarea3->allocation, FALSE); Regards 明覺 wrote: > 2009/5/24 明覺 <[email protected]>: > >> I have spent 2 whole days working on porting my gtkglextmm program >> from linux to windows, now it almost succeeds, except the last issue - >> runs very slowly on nvidia geforce 9500 video card in windows vista. >> On the same machine, I installed debian linux, and the program runs >> smoothly there; on another machine, with a intel integrated video card >> in windows vista, the same application also runs smoothly. >> any advice on this problem? thanks >> > it seems to be a cache problem, I found that if I add some cout<< to > output something, the opengl drawing area will appear quicker, the > more I output by cout<<, the quicker it will appear, so it seems that > I need to command to output the video card cache. > >> -- >> 我的操作系統是Gnu/Linux Debian/gNewSense Gnome Mozilla Gmail/Evolution >> Gtkmm/Gtkglextmm Scim Totem Pidgin. >> >> > > > > -- Dr. Paul Robert Hayes CEO, CEMTACH [email protected] 540 809 5839 www.cemtach.com Specializing in simulation, test, visualization and analysis of electromagnetic systems.
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