At Mon, 03 Sep 2012 13:44:44 +0200, herak...@gmx.de wrote: > Hello friends, > > I create and show a dialog like this: > > (define (start-dialog) > (define dialog (new dialog% [label "Test"])) > (define msg (new message% [parent dialog] > [label "Kein Ereignis bisher"])) > (new button% [parent dialog] > [label "Drück Mich!"] > [callback (lambda (button event) > (send msg set-label "Drücken"))]) > (send dialog show #t)) > > (define c1 (make-eventspace)) > (define (show-message) > (parameterize ([current-eventspace c1]) > (thread start-dialog))) > > > How can I get the handle of the dialog. Or from a frame?
Do you mean that you want to get a Racket reference to the `dialog%' object by finding out what window is frontmost? There's a `get-top-level-focus-window' method, which might be what you want, but it's eventspace-specific. You can discover the eventspace `c1' via `custodian-managed-list', but only by arranging sufficient permission (i.e, by having a custodian that manages the current custodian). Or do you mean `HWND' on Windows? The `get-handle' method will give you that handle. ____________________ Racket Users list: http://lists.racket-lang.org/users
