This event fires each time a button press is detected. In terms of TAPI when the PHONE_BUTTON message is sent to notify the application that button press monitoring is enabled if it has detected a button press on the local phone.

The ButtonLampID indicates the button that was pressed. Note that button identifiers zero through 11 are always the KEYPAD buttons, with '0' being button identifier zero, '1' being button identifier 1 (and so on through button identifier 9), and with '*' being button identifier 10, and '#' being button identifier 11. Additional information about a button identifier is available with Controls property.

Availability

Design-Time: Read, Write / Run-Time: Read, Write

Declaration

procedure OnButton(Sender: ThbTapiPhone; ButtonLampID: DWORD);
property OnButton: ThbTapiPhoneButtonLampEvent;

See Also

ThbTapiPhone.OnDigitPressed | OnDigitReleased | Controls