Name 

Description 

 

OnChange 

Occurs when the user changes the text displayed in the edit region. 

 

OnClick 

Occurs when the user clicks the control. 

 

OnCloseUp 

Occurs when the drop-down list closes up due to some user action. 

 

OnContextPopup 

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

 

OnDblClick 

Occurs when the user double-clicks the left mouse button when the mouse pointer is over the control. 

 

OnDragDrop 

Occurs when the user drops an object being dragged. 

 

OnDragOver 

Occurs when the user drags an object over a control. 

 

OnDropDown 

Occurs when the user opens the drop-down list. 

 

OnEndDock 

Occurs when the dragging of an object ends, either by docking the object or by canceling the dragging. 

 

OnEndDrag 

Occurs when the dragging of an object ends, either by dropping the object or by canceling the dragging. 

 

OnEnter 

Occurs when a control receives the input focus. 

 

OnExit 

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

 

OnGetColors 

Occurs when the control is populated with colors. 

 

OnKeyDown 

Occurs when a user presses any key while the control has focus. 

 

OnKeyPress 

Occurs when a key is pressed. 

 

OnKeyUp 

Occurs when the user releases a key that has been pressed. 

 

OnMouseEnter 

Occurs when the user moves the mouse into a control. 

 

OnMouseLeave 

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

 

OnSelect 

Occurs when the user selects a string in the drop-down list. 

 

OnStartDock 

Occurs when the user begins to drag a control with a DragKind of dkDock. 

 

OnStartDrag 

Occurs when the user begins to drag the control or an object it contains by left-clicking on the control and holding the mouse button down.