The BUTTONSTATE_ bit-flag constants describe the button's positions..
- BUTTONSTATE_DOWN
- The button is in the "down" state (pressed down).
- BUTTONSTATE_UNAVAIL
- Indicates that the up or down state of the button is not known to the service provider, and will not become known at a future time. (TAPI versions 1.4 and later)
- BUTTONSTATE_UNKNOWN
- Indicates that the up or down state of the button is not known at this time, but may become known at a future time. (TAPI versions 1.4 and later)
- BUTTONSTATE_UP
- The button is in the "up" state.
See Also
None.