Input Parameters | Significance |
DtvLong idb | button area Id |
Output Parameters | Significance |
none | - |
Return Code | Significance |
0 | button area exists |
1 | button area does not exist |
Use this function to check the existence of a button area whenever you want to apply program functions to the object but are not perfectly sure whether it really exists in local memory.
Attention!
Applying a program function to a non-existent object can result in a system crash.