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RAD Studio VCL Reference
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TTabAction.HandlesTarget Method
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RAD Studio VCL Reference
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Indicates whether the action can execute its function.
function HandlesTarget(Target: TObject): Boolean; override;
virtual __fastcall Boolean HandlesTarget(TObject * Target);
Do not call the HandlesTarget method. This method is called automatically when the user invokes an object (such as a tool button or menu item) that is linked to this action. The HandlesTarget method provides an action object with an opportunity to indicate whether it is appropriate to execute at this time with the object specified by the Target parameter as a "target".
Target is the currently active object.
In TTabAction, HandlesTarget ignores the Target parameter, and checks, instead, whether the TabControl property has been set. If a target tab control has been assigned to the TabControl property, HandlesTarget returns true. Otherwise, it returns false.
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