REMOVE_CALLBACK Verb
Syntax
REMOVE_CALLBACK(eventType,context_id{,control_id})
Description
The REMOVE_CALLBACK verb removes event handling for the eventType--specified event for a control.
|
Parameter |
Description |
|
eventType |
Event type as identified in the CALLBACK verb. |
|
control_id |
Control ID number, an integer between 1 and 32767 and unique within a given top-level window. The control_id is optional for windows. |
|
contextID |
An integer value between 0 and 32767. |
If the callback subroutine registered to handle the event is invalid, an !ERROR=17 - Invalid Parameter is returned.