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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)

public IntPtr Handle { get; }
/** @property */
public final IntPtr get_Handle ()

public final function get Handle () : IntPtr

Property Value

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

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);
}

// This method draws a focus rectangle on button2 using the 
// handle and client rectangle of button2.
private void button1_Click(Object sender, System.EventArgs e)
{
    ControlPaint.DrawFocusRectangle(Graphics.FromHwnd(button2.get_Handle()), 
        button2.get_ClientRectangle());
} //button1_Click

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

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

.NET Framework

Supported in: 2.0, 1.1, 1.0

.NET Compact Framework

Supported in: 2.0

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