On Help Requested(HelpEventArgs) Method
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Raises the HelpRequested event.
protected: virtual void OnHelpRequested(System::Windows::Forms::HelpEventArgs ^ hevent);
protected virtual void OnHelpRequested (System.Windows.Forms.HelpEventArgs hevent);
abstract member OnHelpRequested : System.Windows.Forms.HelpEventArgs -> unit override this.OnHelpRequested : System.Windows.Forms.HelpEventArgs -> unit
Protected Overridable Sub OnHelpRequested (hevent As HelpEventArgs)
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnHelpRequested method also allows derived classes to handle the event without attaching a delegate. This is the preferred technique for handling the event in a derived class.