#[repr(C)]
pub struct GtkCalendarClass {
    pub parent_class: GtkWidgetClass,
    pub month_changed: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>,
    pub day_selected: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>,
    pub day_selected_double_click: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>,
    pub prev_month: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>,
    pub next_month: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>,
    pub prev_year: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>,
    pub next_year: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>,
    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: GtkWidgetClass
                           
                           
                           month_changed: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>
                           
                           
                           day_selected: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>
                           
                           
                           day_selected_double_click: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>
                           
                           
                           prev_month: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>
                           
                           
                           next_month: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>
                           
                           
                           prev_year: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>
                           
                           
                           next_year: Option<unsafe extern "C" fn(_: *mut GtkCalendar)>
                           
                           
                           _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()>