Input Parameters | Significance |
DtvLong iwd | widget Id |
Output Parameters | Significance |
no | - |
Return Code | Significance |
0 | widget exists |
1 | widget does not exist |
Use this function to check the existence of a widget whenever you want to apply program functions to the object, but are not sure whether the object really exists in local memory.
Attention!
Applying a program function to a nonexistent object can result in a system crash.