has_input_control

Test if the current system has a specific user input control method.

Returns as_check_result_unknown if we could not test for an input control method, as_check_result_error on error and as_check_result_false if the control was not found.

Parameters:

this	a SystemInfo instance.
kind	the ControlKind to test for.

Returns:

as_check_result_true if control was found