Returns whether there is a mapping for a specified key combination in the current keyboard map.
Parameters
- key
- The key sequence to query for.
- isExtendedKey
- Indicates whether this key is an extended key. For IBM Enhanced 101- and 102-key keyboards, extended keys are the right ALT and the right CTRL keys on the main keyboard; the INS, DEL, HOME, END, PAGE UP, PAGE DOWN, and arrow keys to the left of the numeric keypad; and the slash (/) and ENTER keys in the numeric keypad.
Return Value
True if the current keyboard map contains a mapping for key, false if not.