HwndSource.IKeyboardInputSink.HasFocusWithin 方法

定義

命名空間:

System.Windows.Interop

組件:

PresentationCore.dll

如需這個成員的說明，請參閱 IList.Remove(Object)。

 virtual bool System.Windows.Interop.IKeyboardInputSink.HasFocusWithin() = System::Windows::Interop::IKeyboardInputSink::HasFocusWithin;

bool IKeyboardInputSink.HasFocusWithin ();

abstract member System.Windows.Interop.IKeyboardInputSink.HasFocusWithin : unit -> bool
override this.System.Windows.Interop.IKeyboardInputSink.HasFocusWithin : unit -> bool

Function HasFocusWithin () As Boolean Implements IKeyboardInputSink.HasFocusWithin

傳回

Boolean

如果接收或其包含的其中一個元件有焦點則為 true，否則為 false。

實作

HasFocusWithin()

備註

這個成員是明確介面成員實作， 只有在 HwndSource 執行個體轉換成 IKeyboardInputSink 介面時，才能使用這個成員。