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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);
	}

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

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

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