I think this answers my question , at least regarding trying to use CRectTracker.
>From http://www.opengl.org/pipeline/article/vol003_7/ "GDI is no longer hardware-accelerated, but instead rendered to system memory using the CPU. That rendering is later composed on a 3D surface in order to be shown on the desktop. The graphics hardware video driver is no longer involved in GDI rendering, which means that mixing GDI and accelerated 3D rendering in the same window is likely to produce corruption like stale or blanked 3D rendering, trails, etc. Using Microsoft's OpenGL software rendering (the first item in the four OpenGL implementations) will achieve GDI compatibility, but at the expense of rendering speed and lack of modern features." So no mixing of GDI and accelerated 3D into the same window... The problem with resizing is obviously related. ------------------ Read this topic online here: http://forum.openscenegraph.org/viewtopic.php?p=22965#22965 _______________________________________________ osg-users mailing list osg-users@lists.openscenegraph.org http://lists.openscenegraph.org/listinfo.cgi/osg-users-openscenegraph.org