<p>I have a NotifyIcon control that appears in the system tray.  How can I find the location (x, y) of the icon on the screen?</p>

<p>Thanks</p>

You can't.  It isn't hard to get the window handle for the system tray, GetClassName() returns "ToolbarWindow32", the class name of the standard TOOLBAR common control.  Beware that a 64-bit OS has two of them.  Then you can send messages to it like TB_GETBUTTONINFO.  Chief hang-ups are that you won't know what button ID to choose and the returned info does not include the button position.
Which is for the better, buttons move around without you being able to lock them.