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

定义

获取控件绑定到的窗口句柄。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

属性值

IntPtr,包含控件的窗口句柄 (HWND)。An IntPtr that contains the window handle (HWND) of the control.

实现

示例

下面的代码示例演示了如何使用ControlPaint.DrawFocusRectangleHandle属性。The following code example demonstrates using the ControlPaint.DrawFocusRectangle and the Handle property. 若要运行示例窗体中粘贴以下代码。To run the example paste the following code in a form. 添加名为两个按钮Button1Button2到窗体,并确保所有事件都连接到其事件处理程序。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

注解

Handle属性是 Windows HWNDThe value of the Handle property is a Windows HWND. 如果尚未创建句柄,则引用此属性将强制创建句柄。If the handle has not yet been created, referencing this property will force the handle to be created.

适用于

另请参阅