CLIM mail archive


How to manually poll for events

    Date: Wed, 24 Jun 1992 18:12 EDT
    From: Greg Siegle <>

    Hi there,
       I'd like to be able to click on a presentation which calls a
    function which contains a potentially infinite loop, and still be able
    to click on other presentations on the screen and have them respond
    while that function is looping. It seems that as soon as I click on
    one presentation, the other presentations on the screen aren't
    clickable until the function called by my first click is finished
    executing. Do I need to make my own run-frame-top-level function (I'm
    using the default right now)?
       If need by, I can make the potentially infinite loop manually check
    for click events, but I'm not sure how to do that either...

The presentation type system in CLIM is essentially a synchronous model
of I/O.  This is intentional.

You can use READ-GESTURE with :PEEK-P T to "look ahead" for pending
events, and use the documented functions in the presentation type system
to handle mouse click events.

       Has anyone done either of these things?
		-- Greg


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