Function gtk_sys::gtk_cell_renderer_start_editing

pub unsafe extern "C" fn gtk_cell_renderer_start_editing(
    cell: *mut GtkCellRenderer,
    event: *mut GdkEvent,
    widget: *mut GtkWidget,
    path: *const c_char,
    background_area: *const GdkRectangle,
    cell_area: *const GdkRectangle,
    flags: GtkCellRendererState
) -> *mut GtkCellEditable