GtkWidget::set_state
void set_state(
GtkStateType
state
);
Sets the initial GtkStateType for the calling widget. Note that this will be overridden when the user interacts with the widget, and is primarily useful for offering visual cues.
A widget's current state can be queried using the state property.
See also: GtkStyle.
忘却曲線を使ってこの知識を確実に記憶に残す
