Re: win32 zoom

From: <msevior_at_physics.unimelb.edu.au>
Date: Tue Nov 02 2004 - 22:51:50 CET

>
>
> I have spent several hours on implementing the win32 zoom using the
> SetWindowExt and SetViewportExt functions, with the following
> conclusions:
>
> (1) I can see no difference at 200% zoom between the text scaled the
> old way and the new way. I have noted similar craming of letters in
> both, which makes me think that win32 does internally excatly the
> same we do at the moment. (I would be curious to see if the same is
> true of using the SetWorldTransform() function, but that is not
> sufficiently portable.).
>
> (2) While the changes seem to be limited to win32 files, there is a
> huge potential for screwups -- the scroll and rulers stop working and
> need to be fixed up, there are redraw issues, and who knows what
> else.
>
> => Bottom line, I really do not want to meddle in this at this stage.
>
>

For what it's worth, it appears MS Word has similar issues with zoom as
abiword. ie fonts substantially change their appearence at different
zooms. Win32 users apparently have learned to put up with this.

Martin

> (I think the latter part of 7610 is, however, only fixed for the
> Uniscribe graphics and not for the basic win32 graphics class -- I
> still need to look into this).
>
> Tomas
>
>
Received on Tue Nov 2 22:50:24 2004

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