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From: mouse@LARRY.MCRCIM.MCGILL.EDU
Newsgroups: comp.windows.x
Subject: Re:  "modal" modes
Message-ID: <9011040640.AA02680@Larry.McRCIM.McGill.EDU>
Date: 4 Nov 90 06:40:33 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 24

> Motif has two "modal" modes -- application and system modals.  [...]
> System modals are just like pointer grabs.  [...]

System modals are just like pointer grabs?  I thought system modals
were supposed to prevent interaction with any application other than
the one putting up the dialog.

> The question is, can [modal dialogs] be done using some other method
> besides that provided by mwm?  System modals are easy -- just grab
> the pointer and release it when you're done.
(If that's what system modals really are.)
> Applciation grabs, are more difficult.  I haven't seen anything in
> any of the X or Xt docs that specify a method for XGrabPointer or
> anything else to achieve this.

At the Xlib level, the concept of application modal simply does not
exist; it's up to the application to ignore (or defer, depending on the
desired semantics) events arriving from inappropriate windows.  (I
don't know what the Xt view is.)

					der Mouse

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