Message Structure

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Implements a Windows-based message.

Namespace:  Microsoft.WindowsCE.Forms
Assembly:  Microsoft.WindowsCE.Forms (in Microsoft.WindowsCE.Forms.dll)


Public Structure Message
Dim instance As Message
public struct Message
public value class Message
type Message =  struct end


The Message structure wraps messages that Windows sends. You can use this structure to wrap a message and assign it to the window procedure to be dispatched.

You cannot directly create the Message structure. To create a Message structure, use the Create method. For efficiency, the Message structure uses any existing structures from its pool instead of creating an instance of a new one.


The following code example creates and sends a Windows-based message with the identifier of WM_CUSTOMMSG. The message is given the handle of a message window, named MsgWin, to which it sends the messages. The message contains values for the WParam and LParam parameters, which in this example are current x and y mouse coordinates as obtained from MouseEventArgs, e, in an OnMouseMove method.

This code example is part of a larger example provided for the MessageWindow component.

[Visual Basic]

Dim msg As Message = Message.Create(MsgWin.Hwnd, 
    MsgWindow.WM_CUSTOMMSG, New IntPtr(e.X), New IntPtr(e.Y))


Message msg = Message.Create(MsgWin.Hwnd, 
    MsgWindow.WM_CUSTOMMSG, (IntPtr)e.X, (IntPtr)e.Y);
MessageWindow.SendMessage(ref msg); 

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.


Windows CE, Windows Mobile for Smartphone, Windows Mobile for Pocket PC

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.

Version Information

.NET Compact Framework

Supported in: 3.5, 2.0, 1.0

See Also


Message Members

Microsoft.WindowsCE.Forms Namespace