create_context (
  GtkGLArea self,
  gpointer user_data

Description [src]

Emitted when the widget is being realized.

This allows you to override how the GL context is created. This is useful when you want to reuse an existing GL context, or if you want to try creating different kinds of GL options.

If context creation fails then the signal handler can use gtk_gl_area_set_error() to register a more detailed error of how the construction failed.

Default handler:

The default handler is called after the handlers added via g_signal_connect().

Return value

Returns: GdkGLContext*

A newly created GdkGLContext; the GtkGLArea widget will take ownership of the returned value.

 The caller of the function takes ownership of the data, and is responsible for freeing it.