Function gdk4_sys::gdk_drop_read_value_async

pub unsafe extern "C" fn gdk_drop_read_value_async(
    self_: *mut GdkDrop, 
    type_: GType, 
    io_priority: c_int, 
    cancellable: *mut GCancellable, 
    callback: GAsyncReadyCallback, 
    user_data: gpointer
)