void set_mode(bool draw_indicator);

Sets whether the button is displayed as a separate indicator and label. You can call this function on a checkbutton or a radiobutton with draw_indicator = false to make the button look like a normal button.

This function only effects instances of classes like GtkCheckButton and GtkRadioButton that derive from GtkToggleButton, not instances of GtkToggleButton itself.

See also: get_mode()