TTMSFNCCustomToolBarButton.ControlIndex Property
Zero-based index of this control within the toolbar's control list. Set internally during layout; do not change at runtime.
API unit family: TMSFNCToolBar
Declaring type: TTMSFNCCustomToolBarButton
Inherited from: TTMSFNCCustomToolBarElement
Type: Integer
Syntax
property ControlIndex: Integer;
Default: -1