Emitted when a hand writing operation is cancelled.
Implement the member function IBusEngineClass::cancel_hand_writing in extended class to receive this signal.
Argument user_data
is ignored in this function.
coordinates |
An array of double (0.0 to 1.0) which represents a stroke (i.e. [x1, y1, x2, y2, x3, y3, ...]). |
coordinates_len |
The number of elements in the array. |