Call this function before using any other GdkGLExt functions in your applications. It will initialize everything needed to operate the library and parses some standard command line options. @argc and @argv are adjusted accordingly so your own code will never see those standard arguments.
This function does the same work as gdk_gl_init() with only a single change: It does not terminate the program if the library can't be initialized. Instead it returns %FALSE on failure.