Base. On Mouse Down(MouseEventArgs) Method
Raises the OnMouseDown(MouseEventArgs) event.
protected: override void OnMouseDown(System::Windows::Forms::MouseEventArgs ^ mevent);
protected override void OnMouseDown (System.Windows.Forms.MouseEventArgs mevent);
override this.OnMouseDown : System.Windows.Forms.MouseEventArgs -> unit
Protected Overrides Sub OnMouseDown (mevent As MouseEventArgs)
Raising an event invokes the event handler through a delegate. For more information, see Handling and Raising Events.
The OnMouseDown 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.
Do not call OnMouseDown if the button is disabled (this includes calls to the base class's OnMouseDown method when you override OnMouseDown in a derived class). When disabling the button in an override of OnMouseDown, call the base class's OnMouseDown method before disabling the button, or do not call it at all.