| GtkGLArea is an OpenGL widget for the GTK+ GUI toolkit.
Just as GTK+ is built on top of GDK, GtkGLArea is built on top of gdkgl, which is basically a wrapper around GLX functions.
The widget itself is very similar to the GtkDrawinigArea widget; it adds only few extra functions.
Lower-level gdkgl functions make it easy to render on any widget that has OpenGL-capable visuals. The ability to render to off-screen pixmaps is also supported.
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