Window.setUserData

For most purposes this function is deprecated in favor of g_object_set_data(). However, for historical reasons GTK+ stores the #GtkWidget that owns a #GdkWindow as user data on the #GdkWindow. So, custom widget implementations should use this function for that. If GTK+ receives an event for a #GdkWindow, and the user data for the window is non-%NULL, GTK+ will assume the user data is a #GtkWidget, and forward the event to that widget.

class Window
void
setUserData

Parameters

userData ObjectG

user data

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