Navigation: ABC Library Reference > QueryListVisual > QueryListVisual Methods >====== TakeFieldEvent (a virtual to process field events:QueryListVisual) ====== | |
TakeFieldEvent, DERIVED, PROC
The TakeFieldEvent method is a virtual placeholder to process all field-specific/control-specific events for the window. It returns a value indicating whether window process is complete and should stop. TakeFieldEvent returns Level:Benign to indicate processing of this event should continue normally; it returns Level:Notify to indicate processing is completed for this event and the ACCEPT loop should CYCLE; it returns Level:Fatal to indicate the event could not be processed and the ACCEPT loop should BREAK.
Implementation:
Return values are declared in ABERROR.INC. The TakeEvent method calls the TakeFieldEvent method.
Return Data Type: BYTE
Example:
MyWindowManager.TakeEvent PROCEDURE
RVal BYTE(Level:Benign)
I USHORT,AUTO
CODE
IF ~FIELD()
RVal = SELF.TakeWindowEvent()
IF RVal THEN RETURN RVal.
END
CASE EVENT()
OF EVENT:Accepted; RVal = SELF.TakeAccepted()
OF EVENT:Rejected; RVal = SELF.TakeRejected()
OF EVENT:Selected; RVal = SELF.TakeSelected()
OF EVENT:NewSelection;RVal = SELF.TakeNewSelection()
OF EVENT:Completed; RVal = SELF.TakeCompleted()
OF EVENT:CloseWindow OROF EVENT:CloseDown
RVal = SELF.TakeCloseEvent()
END
IF RVal THEN RETURN RVal.
IF FIELD()
RVal = SELF.TakeFieldEvent()
END
RETURN Rval
See Also: WindowManager.Ask