Function gdk_sys::gdk_window_begin_move_drag_for_device

pub unsafe extern "C" fn gdk_window_begin_move_drag_for_device(
    window: *mut GdkWindow, 
    device: *mut GdkDevice, 
    button: c_int, 
    root_x: c_int, 
    root_y: c_int, 
    timestamp: u32
)