This document covers the following topics:
Validates a handle variable. A handle variable is considered valid if it contains either the value NULL-HANDLE or a handle to an existing dialog or dialog element.
| Name/Data Type | Explanation |
|---|---|
| HANDLE OF GUI | Input
Any dialog or dialog element. |
| Response (I4) | Output
Natural error (if applicable), or 0 if handle variable is valid. |
PROCESS GUI ACTION VALIDATE WITH #PB-1 GIVING #RESPONSE
