Thanks ! I 'm not sure i understand what do you mean for modify src/osgViewer/GraphicsWindowX11.cpp
I have found an other solution with the function viewerbase::getWindows(Windows& ). If i cast the GraphicsWindow into GraphicsWindowX11, i have acces to the function getDisplay() and getWindow(). But i also need an integer for identify the screen ... For example in this function (the second parameter) : Code: Bool glXQueryFrameCountNV(Display *dpy, int screen, GLuint *count); [/code] ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=35584#35584 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org