Sets the content widget of the info window. See that the previous widget will lose a reference and it can be destroyed, so if you do not want this to happen you must use g_object_ref() before calling this method.
a #GtkWidget.
Deprecated: Use gtk_container_add() instead. If there is already a child widget, remove it with gtk_container_remove().
See Implementation
Sets the content widget of the info window. See that the previous widget will lose a reference and it can be destroyed, so if you do not want this to happen you must use g_object_ref() before calling this method.