TTMSFNCTabSet.OnBeforeInsertTab Event
Occurs before a new tab is inserted and allows the target index or operation to be changed.
API unit family: TMSFNCTabSet
Declaring type: TTMSFNCTabSet
Inherited from: TTMSFNCCustomTabSet
Syntax
OnBeforeInsertTab: TTMSFNCTabSetBeforeInsertTabEvent;
Parameters
| Name | Description |
|---|---|
Sender |
Object that triggered the event. |
ANewTabIndex |
Zero-based insertion index that can be changed by the handler. |
ACanInsert |
Set to False to cancel the insert operation. |