The enumeration contains modifiers of the keys that can be used when the key combinations are composed.
It is used by the following property:
| Value | Brief description |
| 0 | None. Additional key is not used. |
| 1 | Shift. It is used with SHIFT. |
| 2 | Ctrl. It is used with CTRL. |
| 4 | Alt. It is used with Alt. |
See also: