Hi, It seems there is no OpenGL support in GTK+ 2.4, but it can be replaced by GtkGLExt. Is there any plan for a binding to GtkGLExt in GTKADA ? I could work on it, but I am not really aware of GtkAda internals. GtkGLExt extends the GtkWidget API instead of creating a specific DrawingArea, so that every child of GtkWidget can be GL enabled. -- Thierry Bernier