CLIM mail archive


Re: Screen update and feeling the bits between your toes

    Date: Fri, 11 Oct 1991 16:48 EDT
    From: Scott McKay <>

    Some requests for COPY-AREA have really been for a facility that caches
    a commonly drawn piece of output and then replicates it in a new place.
    Incremental redisplay is not helpful here (even if it did BITBLT

Personally, I'd find this (slapping up bitmaps as glyphs) far more useful
than copy-area. A form of incremental redisplay could be helpful if it dealt
with objects rather than areas on the screen, i.e. it knows if an object has
an x-y locaion that has changed, and it erased the old bitmap and slapped up
the new one. But I want animation...

 Brad Miller		U. Rochester Comp Sci Dept. {...allegra!rochester!miller}


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