Message Properties Dialog Box

Use this dialog box to find out more about a specific message. To display this dialog box, move the focus to a Messages View window. Select any message node in the tree, then choose Properties from the View menu.

The General tab is the only tab displayed. The following settings are available:

Window Handle

The unique ID of this window. Window handle numbers are reused; they identify a window only for the lifetime of that window. Click this value to view the properties of this window.

Nesting Level

Depth of nesting of this message, where 0 is no nesting.


Number, status, and name of the selected windows message.


The value of the lResult parameter, if any.


The value of the wParam parameter, if any.


The value of the lParam parameter, if any. This value is decoded if it is a pointer to a string or structure.

Message Options Dialog Box

Used to select which messages are listed in the active Messages view.

Message Search Dialog Box

Used to find the node for a specific message in Messages view.

Spy++ Reference

Includes sections describing each Spy++ menu and dialog box.

Opening Messages View from Find Window

Explains how to open Messages view from the Find Window dialog box.

Searching for a Message in Messages View

Explains how to find a specific message in Messages view.

Messages View

Displays the message stream associated with a window, process, or thread.

Spy++ Views

Explains the Spy++ tree views of windows, messages, processes, and threads.

Using Spy++

Introduces the Spy++ tool and explains how it can be used.