#[repr(C)]
pub struct GtkButtonClass {
    pub parent_class: GtkBinClass,
    pub pressed: Option<unsafe extern "C" fn(_: *mut GtkButton)>,
    pub released: Option<unsafe extern "C" fn(_: *mut GtkButton)>,
    pub clicked: Option<unsafe extern "C" fn(_: *mut GtkButton)>,
    pub enter: Option<unsafe extern "C" fn(_: *mut GtkButton)>,
    pub leave: Option<unsafe extern "C" fn(_: *mut GtkButton)>,
    pub activate: Option<unsafe extern "C" fn(_: *mut GtkButton)>,
    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: GtkBinClass
                           
                           
                           pressed: Option<unsafe extern "C" fn(_: *mut GtkButton)>
                           
                           
                           released: Option<unsafe extern "C" fn(_: *mut GtkButton)>
                           
                           
                           clicked: Option<unsafe extern "C" fn(_: *mut GtkButton)>
                           
                           
                           enter: Option<unsafe extern "C" fn(_: *mut GtkButton)>
                           
                           
                           leave: Option<unsafe extern "C" fn(_: *mut GtkButton)>
                           
                           
                           activate: Option<unsafe extern "C" fn(_: *mut GtkButton)>
                           
                           
                           _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()>