bug#11732: Follow-up to bug#11732

[martin rudalics <rudalics@gmx.at>]

 >> Tested with "File -> Open File" dialog and "(w32-font-select)" dialog.
 >> Both seem to work.
 >
 > By "work", do you mean that clicking on anywhere inside these dialogs
 > leaves the dialogs visible?  On 2 different systems where I tried
 > this, after applying the patch, clicking anywhere in the dialog box
 > after it opens causes the dialog box to disappear: it is moved in z
 > order behind the frame from which the dialog was started.
 >
 > It's possible that this is somehow related to the fact that I have my
 > Windows systems configured to enable "active window tracking"
 > (a.k.a. "focus follows mouse"), but even so, I'd like to be able to
 > avoid that adverse side effect on systems that are so configured.

I now tried on my standard XP machine and do not see any adverse
effects with file, directory and font dialog boxes.  Maybe it's
related to the fact that I have "focus follows mouse" plus
"autoraise".  Could you try with such a setting?  I am very reluctant
to change mine becaue I have some additional mouse software working as
well.

 > +	  SetWindowPos (dialog, HWND_TOPMOST, 0, 0, 0, 0,
 > +			SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE
 > +			| SWP_NOOWNERZORDER);
 > +	  SetWindowPos (FRAME_W32_WINDOW (SELECTED_FRAME ()),
 > +			dialog, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);

What was the more or less precise rationale for this unless it was
pure experimenting (in particular the SWP_NOACTIVATE in the first
call)?  The patch does not have any (adverse) effects here so if it
solves the problem for you, I see no problem applying it.

 > then how do
 > we solve a similar problem in x-select-font?  It doesn't have a
 > callback function, and if I try adding one, the appearance of the
 > dialog changes(??) and the OK and CANCEL buttons no longer work.

Can you send me the code you tried?

 > Also, w32_dialog_in_progress seems to try to solve some similar
 > problem, but is not really working?  I guess I simply don't understand
 > why the dialog is lowered when I click on it.

In w32_dialog_in_progress I tried to solve a relatively simple
problem: When a frame is in the TOPMOST group and I start a dialog,
that frame would obscure the dialog box.  So I temporarily remove the
frame from the TOPMOST group and move it back when the dialog ends.

martin