Name 

Description 

 

OnActionExecute 

Occurs when an action's Execute method is called and its action list has not already handled it. 

 

OnActionUpdate 

Occurs when an action's Update method is called and its action list has not already handled it. 

 

OnActivate 

Occurs when an application becomes active. 

 

OnDeactivate 

Occurs when an application becomes inactive. 

 

OnException 

Occurs when an unhandled exception occurs in the application. 

 

OnGetActiveFormHandle 

This is OnGetActiveFormHandle, a member of class TApplication. 

 

OnGetMainFormHandle 

This is OnGetMainFormHandle, a member of class TApplication. 

 

OnHelp 

Occurs when the application receives a request for help. 

 

OnHint 

Occurs when the mouse pointer moves over a control or menu item that can display a Help Hint. 

 

OnIdle 

Occurs when an application becomes idle. 

 

OnMessage 

Occurs when the application receives a Windows message. 

 

OnMinimize 

Occurs when an application is minimized. 

 

OnModalBegin 

Occurs when a modal form is opened. 

 

OnModalEnd 

Occurs when a modal form is closed. 

 

OnRestore 

Occurs when the previously minimized application is restored to its normal size. 

 

OnSettingChange 

Occurs when Windows notifies the application that a system-wide setting has changed. 

 

OnShortCut 

Occurs when the user presses a key (before the OnKeyDown event). 

 

OnShowHint 

Occurs when the application is about to display the hint window for a Help Hint.