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Graphics.FromHwnd Method

Creates a new Graphics from the specified handle to a window.

Namespace:  System.Drawing
Assembly:  System.Drawing (in System.Drawing.dll)

static member FromHwnd : 
        hwnd:IntPtr -> Graphics

Parameters

hwnd
Type: System.IntPtr

Handle to a window.

Return Value

Type: System.Drawing.Graphics
This method returns a new Graphics for the specified window handle.

You should always call the Dispose method to release the Graphics and related resources created by the FromHwnd method.

The following code example is designed for use with Windows Forms, and it requires PaintEventArgs e, which is a parameter of the Paint event handler, as well as thisForm, the Form for the example. The code performs the following actions:

  • Creates a new internal pointer variable hwnd and sets it to the handle of the example's form.

  • Creates a new Graphics from the handle.

  • Draws a rectangle to the new Graphics using a red pen.

  • Disposes the new Graphics.

No code example is currently available or this language may not be supported.

.NET Framework

Supported in: 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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