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CommonDialog.OwnerWndProc Method

Defines the owner window procedure that is overridden to add specific functionality to a common dialog box.

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

[SecurityPermissionAttribute(SecurityAction.LinkDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
[SecurityPermissionAttribute(SecurityAction.InheritanceDemand, Flags = SecurityPermissionFlag.UnmanagedCode)]
protected virtual IntPtr OwnerWndProc(
	IntPtr hWnd,
	int msg,
	IntPtr wparam,
	IntPtr lparam


Type: System.IntPtr
The window handle of the message to send.
Type: System.Int32
The Win32 message to send.
Type: System.IntPtr
The wparam to send with the message.
Type: System.IntPtr
The lparam to send with the message.

Return Value

Type: System.IntPtr
The result of the message processing, which is dependent on the message sent.

Control is transferred here when messages are sent to the owner window of the common dialog box. Inheriting classes can override this method to add specific functionality to a common dialog box.

.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

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