Function gtk_sys::gtk_cell_area_request_renderer

pub unsafe extern "C" fn gtk_cell_area_request_renderer(
    area: *mut GtkCellArea,
    renderer: *mut GtkCellRenderer,
    orientation: GtkOrientation,
    widget: *mut GtkWidget,
    for_size: c_int,
    minimum_size: *mut c_int,
    natural_size: *mut c_int
)