Control.Handle Control.Handle Control.Handle Control.Handle Property

定義

取得控制項要繫結的目標視窗控制代碼。Gets the window handle that the control is bound to.

public:
 property IntPtr Handle { IntPtr get(); };
[System.ComponentModel.Browsable(false)]
public IntPtr Handle { get; }
member this.Handle : nativeint
Public ReadOnly Property Handle As IntPtr

屬性值

IntPtr,包含控制項的視窗控制代碼 (HWND)。An IntPtr that contains the window handle (HWND) of the control.

實作

範例

下列程式碼範例將示範如何ControlPaint.DrawFocusRectangle使用Handle和屬性。The following code example demonstrates using the ControlPaint.DrawFocusRectangle and the Handle property. 若要執行範例,請在表單中貼上下列程式碼。To run the example paste the following code in a form. 將名為Button1Button2的兩個按鈕加入至表單,並確保所有事件都連接到其事件處理常式。Add two buttons named Button1 and Button2 to the form and ensure all events are connected to their event handlers.

// This method draws a focus rectangle on Button2 using the 
// handle and client rectangle of Button2.
void Button1_Click( System::Object^ /*sender*/, System::EventArgs^ /*e*/ )
{
   ControlPaint::DrawFocusRectangle( Graphics::FromHwnd( Button2->Handle ), Button2->ClientRectangle );
}
// This method draws a focus rectangle on Button2 using the 
// handle and client rectangle of Button2.
private void Button1_Click(System.Object sender, System.EventArgs e)
{
	ControlPaint.DrawFocusRectangle(Graphics.FromHwnd(Button2.Handle), 
		Button2.ClientRectangle);
}
' This method draws a focus rectangle on Button2 using the 
' handle and client rectangle of Button2.
Private Sub Button1_Click(ByVal sender As System.Object, _
    ByVal e As System.EventArgs) Handles Button1.Click
    ControlPaint.DrawFocusRectangle(Graphics.FromHwnd(Button2.Handle), _
    Button2.ClientRectangle)
End Sub

備註

Handle屬性的值為 Windows HWNDThe value of the Handle property is a Windows HWND. 如果尚未建立控制碼,參考這個屬性將會強制建立控制碼。If the handle has not yet been created, referencing this property will force the handle to be created.

適用於

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