Windows Messages

Windows Mobile 6.5
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4/8/2010

The following table shows the windows messages, with a description of the purpose of each.

Programming element Description

WM_CANCELMODE

This message is sent to the focus window when a dialog box or message box is displayed; this enables the focus window to cancel modes, such as stylus capture.

WM_CLOSE

This message is sent as a signal that a window or an application should terminate.

WM_CREATE

This message is sent when an application requests that a window be created by calling the CreateWindowEx or CreateWindow function.

WM_DESTROY

This message is sent when a window is being destroyed.

WM_ENABLE

This message is sent when an application changes the enabled state of a window.

WM_ERASEBKGND

This message is sent by an application when the window background must be erased, for example, when a window is resized.

WM_GETTEXT

This message is sent by an application to copy the text that corresponds to a window into a buffer provided by the caller.

WM_GETTEXTLENGTH

This message is sent by an application to determine the length, in characters, of the text associated with a window.

WM_MOVE

This message is sent after a window has been moved.

WM_QUIT

This message indicates a request to terminate an application and is generated when the application calls the PostQuitMessage function.

WM_SETTEXT

This message is sent by an application to set the window text.

WM_SIZE

This message is sent to a window after its size has changed.

WM_STYLECHANGED

This message is sent to a window after the SetWindowLong function has changed one or more of the window's styles.

WM_WINDOWPOSCHANGED

This message is sent to a window whose size, position, or place in the z-order has changed as a result of a call to the SetWindowPos function or another window-management function.

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