[Lazarus] How can I popup a message in PDA?

[Usuario Anónimo]

>From wikilazarus:

TWinControl.PopupMenu showing

Showing the popup menu of a windowed control is implemented using the native
behavior of the Windows CE platform for touch screens. The user holds the
pointer in a given control for a certain amount of time and the popup shows.
This is implemented on the WM_LBUTTONDOWN message handler by calling
SHRecognizeGesture.

For more details see:

    *
http://svn.freepascal.org/cgi-bin/viewvc.cgi?view=rev&root=lazarus&revision=13728

I download the patch (wincecallback.inc) from Paul Michell, which implements
showing popup menus from mouse gestures on wince, but I do not know how to
use it.

Best regards.
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