Re: FW: Test77 multiwindow mouse weirdness

[Harold L Hunt II <huntharo at msu dot edu>]

Piers,

Yes, that is strange.  I think the problem is that, as you said, the 
multiwindow mode is assuming that the screen is based at 0, 0.  That 
isn't a problem for the non-multiwindow mode, but there was obviously 
some sort of oversight in the multiwindow mode that caused this problem 
to show up.  I may look into it eventually, but if you have any 
inclination to peek at the source yourself (it is accessible via cvsweb 
and well commented) then I would appreciate it if you could try to 
locate the problem for me.

Harold

Harold L Hunt II wrote:
> Here is a message from Piers Haken reporting a problem with mutliwindow 
> mode.  His emails get bounced because Exchange insists on munging his 
> email.
>
> Harold
>
>  > -----Original Message-----
>  > From: Piers Haken
>  > Sent: Tuesday, February 11, 2003 11:22 PM
>  > To: 'cygwin-xfree@cygwin.com'
>  > Subject: Test77 multiwindow mouse weirdness
>  >
>  >
>  > I'm seeing some weirdness with the mouse cursor in Test77's multiwindow
>  > mode.
>  >
>  > Note: I have my windows taskbar attached to the left-hand edge of the
>  > screen instead of the bottom.
>  >
>  > Here's how to see what I'm seeing:
>  > 1) install test77
>  > 2) unlock the taskbar.
>  > 3) dock the taskbar to the left-hand side of the screen
>  > 4) run 'XWin-Test77 -multiwindow'
>  > 5) open an xterm
>  > 6) look at the position of the xterm window.
>  > 7) now click on the 'Cygwin/XFree86 rl' window so the root is visible.
>  >         Notice how the position of the xterm window is different
>  > depending on whether or not the root window is shown. When the root
>  > window is shown the xterm jumps to the right exactly by the width of the
>  > taskbar.
>  >
>  > 8) while the root window is on top, move the mouse around.
>  >         Notice that the mouse cursor occasionally jumps to the right,
>  > again by the same amount as the width of the taskbar.
>  >
>  > 9) show both the root window AND the xterm, so the multiwindow xterm
>  > with the windows decorations is on top of the root window.
>  >
>  >         Notice that the two versions of the xterm window do not line up.
>  >
>  > I know this isn't a very common or very severe bug but it does seem to
>  > indicate an underlying problem in the calculation of the desktop
>  > bounding rectangle. Perhaps you're assuming, incorrectly in general,
>  > that the desktop starts at (0,0)?
>  >
>  > Piers.
>  >