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RAD Studio VCL Reference
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TCustomTabControl.IndexOfTabAt Method
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RAD Studio VCL Reference
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Indicates the index of the tab at a specified point.
function IndexOfTabAt(X: Integer; Y: Integer): Integer;
__fastcall int IndexOfTabAt(int X, int Y);
Use IndexOfTabAt to locate which tab is at the point specified by X and Y. If the point with X-coordinate X and Y-coordinate Y is over a tab, IndexOfTabAt returns the 0-offset index of that tab in the Tabs property (TTabControl) or in the Pages property (TPageControl). If the point defined by X and Y is not over a tab, IndexOfTabAt returns –1.
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