Function test_widget_send_key 

pub fn test_widget_send_key(
    widget: &impl IsA<Widget>,
    keyval: u32,
    modifiers: ModifierType,
) -> bool

window. Certain caveats should be considered when using this function, in particular because the mouse pointer is warped to the key press location, see gdk_test_simulate_key() for details.

widget

Widget to generate a key press and release on.

keyval

A Gdk keyboard value.

modifiers

Keyboard modifiers the event is setup with.

Returns

whether all actions neccessary for the key event simulation were carried out successfully.