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, ref bool handled )
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.
 Security Note |
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This type or member is not available in the Internet security zone. |
The base implementation in HwndHost does not return a practical process, but will return IntPtr.Zero as a failsafe.
- SecurityPermission
to call this method. Associated enumeration: UnmanagedCode
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.
