Control.OnSystemColorsChanged(EventArgs) 方法

定義

引發 SystemColorsChanged 事件。Raises the SystemColorsChanged event.

protected:
 virtual void OnSystemColorsChanged(EventArgs ^ e);
protected virtual void OnSystemColorsChanged (EventArgs e);
abstract member OnSystemColorsChanged : EventArgs -> unit
override this.OnSystemColorsChanged : EventArgs -> unit
Protected Overridable Sub OnSystemColorsChanged (e As EventArgs)

參數

e
EventArgs

包含事件資料的 EventArgsAn EventArgs that contains the event data.

備註

引發事件會透過委派叫用此事件處理常式。Raising an event invokes the event handler through a delegate. 如需詳細資訊,請參閱處理和引發事件For more information, see Handling and Raising Events.

OnSystemColorsChanged 方法也可讓衍生類別處理事件,而不需要附加委派。The OnSystemColorsChanged method also enables derived classes to handle the event without attaching a delegate. 這是在衍生類別中處理事件的慣用技巧。This is the preferred technique for handling the event in a derived class.

給繼承者的注意事項

當在衍生類別中覆寫 OnSystemColorsChanged(EventArgs) 時,請確定呼叫基底類別的 OnSystemColorsChanged(EventArgs) 方法,使已註冊的委派能接收到事件。When overriding OnSystemColorsChanged(EventArgs) in a derived class, be sure to call the base class's OnSystemColorsChanged(EventArgs) method so that registered delegates receive the event.

適用於

另請參閱