#[repr(C)]
pub struct GtkToolButtonClass {
    pub parent_class: GtkToolItemClass,
    pub button_type: GType,
    pub clicked: Option<unsafe extern "C" fn(_: *mut GtkToolButton)>,
    pub _gtk_reserved1: Option<unsafe extern "C" fn()>,
    pub _gtk_reserved2: Option<unsafe extern "C" fn()>,
    pub _gtk_reserved3: Option<unsafe extern "C" fn()>,
    pub _gtk_reserved4: Option<unsafe extern "C" fn()>,
}
Fields
                           
                           parent_class: GtkToolItemClass
                           
                           
                           button_type: GType
                           
                           
                           clicked: Option<unsafe extern "C" fn(_: *mut GtkToolButton)>
                           
                           
                           _gtk_reserved1: Option<unsafe extern "C" fn()>
                           
                           
                           _gtk_reserved2: Option<unsafe extern "C" fn()>
                           
                           
                           _gtk_reserved3: Option<unsafe extern "C" fn()>
                           
                           
                           _gtk_reserved4: Option<unsafe extern "C" fn()>