Declares a @callback_symbol to handle @callback_name from the template XML defined for @widget_type. See gtk_builder_add_callback_symbol().
Note that this must be called from a composite widget classes class initializer after calling gtk_widget_class_set_template().
The name of the callback as expected in the template XML
The callback symbol
3.10
See Implementation
Declares a @callback_symbol to handle @callback_name from the template XML defined for @widget_type. See gtk_builder_add_callback_symbol().
Note that this must be called from a composite widget classes class initializer after calling gtk_widget_class_set_template().