CommonDialog.OwnerWndProc Method (IntPtr, Int32, IntPtr, IntPtr)

 

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
)

Parameters

hWnd
Type: System.IntPtr

The window handle of the message to send.

msg
Type: System.Int32

The Win32 message to send.

wparam
Type: System.IntPtr

The wparam to send with the message.

lparam
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.

SecurityPermission

for inheriting classes to call unmanaged code. Associated enumeration: SecurityPermissionFlag.UnmanagedCode

SecurityPermission

for the immediate caller to call unmanaged code. Associated enumeration: SecurityPermissionFlag.UnmanagedCode

.NET Framework
Available since 1.1
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