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HwndHost::WndProc Method

When overridden in a derived class, accesses the window process (handle) of the hosted child window.

Namespace:  System.Windows.Interop
Assembly:  PresentationFramework (in PresentationFramework.dll)

protected:
virtual IntPtr WndProc(
	IntPtr hwnd, 
	int msg, 
	IntPtr wParam, 
	IntPtr lParam, 
	bool% handled
)
You cannot use methods in XAML.

Parameters

hwnd
Type: System::IntPtr

The window handle of the hosted window.

msg
Type: System::Int32

The message to act upon.

wParam
Type: System::IntPtr

Information that may be relevant to handling the message. This is typically used to store small pieces of information, such as flags.

lParam
Type: System::IntPtr

Information that may be relevant to handling the message. This is typically used to reference an object.

handled
Type: System::Boolean%

Whether events resulting should be marked handled.

Return Value

Type: System::IntPtr

Security noteSecurity Note:

This type or member is not available in the Internet security zone.

Notes to Inheritors:

The base implementation in HwndHost does not return a practical process, but will return IntPtr.Zero as a failsafe.

Windows 7, Windows Vista, Windows XP SP2, Windows Server 2008 R2, Windows Server 2008, Windows Server 2003

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

.NET Framework

Supported in: 3.5, 3.0

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