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Control.Handle Property

Gets the window handle that the control is bound to.

Namespace:  System.Windows.Forms
Assembly:  System.Windows.Forms (in System.Windows.Forms.dll)

[BrowsableAttribute(false)]
public IntPtr Handle { get; }

Property Value

Type: System.IntPtr
An IntPtr that contains the window handle (HWND) of the control.

Implements

IWin32Window.Handle

The value of the Handle property is a Windows HWND. If the handle has not yet been created, referencing this property will force the handle to be created.

The following code example demonstrates using the ControlPaint.DrawFocusRectangle and the Handle property. To run the example paste the following code in a form. 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. 
	private void Button1_Click(System.Object sender, System.EventArgs e)
	{
		ControlPaint.DrawFocusRectangle(Graphics.FromHwnd(Button2.Handle), 
			Button2.ClientRectangle);
	}

Windows 7, Windows Vista, Windows XP SP2, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP Starter Edition, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003, Windows Server 2000 SP4, Windows Millennium Edition, Windows 98, Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

The .NET Framework and .NET Compact Framework do not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

.NET Framework

Supported in: 3.5, 3.0, 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 3.5, 2.0
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