FW: Test77 multiwindow mouse weirdness

[Harold L Hunt II]

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.
 >