Function gtk_sys::gtk_cell_area_activate_cell

pub unsafe extern "C" fn gtk_cell_area_activate_cell(
    area: *mut GtkCellArea, 
    widget: *mut GtkWidget, 
    renderer: *mut GtkCellRenderer, 
    event: *mut GdkEvent, 
    cell_area: *const GdkRectangle, 
    flags: GtkCellRendererState
) -> gboolean