Name 

Description 

 

OnChange 

Occurs when the properties of the accelerator key change. 

 

OnContextPopup 

Occurs when the user right-clicks the control or otherwise invokes the popup menu (such as using the keyboard). 

 

OnEnter 

Occurs when a control receives the input focus. 

 

OnExit 

Occurs when the input focus shifts away from one control to another. 

 

OnMouseActivate 

Occurs when the user presses a mouse button with the mouse pointer over a control and the parent form is not active. 

 

OnMouseDown 

Occurs when the user presses a mouse button with the mouse pointer over a control. 

 

OnMouseEnter 

Occurs when the user moves the mouse into a control. 

 

OnMouseLeave 

Occurs when the user moves the mouse outside of a control. 

 

OnMouseMove 

Occurs when the user moves the mouse pointer while the mouse pointer is over a control. 

 

OnMouseUp 

Occurs when the user releases a mouse button that was pressed with the mouse pointer over a component.