Selects a custom item previously added with gtk_app_chooser_button_append_custom_item(). Use gtk_app_chooser_refresh() to bring the selection to its initial state.
the name of the custom item Since 3.0
See Implementation
Selects a custom item previously added with gtk_app_chooser_button_append_custom_item(). Use gtk_app_chooser_refresh() to bring the selection to its initial state.