[Lazarus] Inconsistent results from MessageDlg()

[patspiper]

On 22/04/12 15:02, zeljko wrote:
>
> On Sunday 22 of April 2012 13:35:59 patspiper wrote:
>
> > On 22/04/12 14:09, zeljko wrote:
>
> > > On Sunday 22 of April 2012 12:28:43 Bart wrote:
>
> > > > Hi all,
>
> > > >
>
> > > >
>
> > > >
>
> > > > MessageDlg eventually calls WidgetSet.PromptUser()
>
> > > >
>
> > > > This in return either calls and sets up a widgetset specific 
> function
>
> > > >
>
> > > > (like TaskDialogIndirect on Windows Vista/Win7) or if such an
>
> > > >
>
> > > > implementations does not exist it calls
>
> > > >
>
> > > > TPromptDialog.CreateMessageDialog() and the LCL will build it's own
>
> > > >
>
> > > > MessageDialog form with appropriate buttons etc.
>
> > > >
>
> > > >
>
> > > >
>
> > > > I see 3 problems (see 
> http://bugs.freepascal.org/view.php?id=21801 ).
>
> > > >
>
> > > >
>
> > > >
>
> > > > 1.
>
> > > >
>
> > > >
>
> > > >
>
> > > > How to handle clicking on X-border-icon?
>
> > >
>
> > > afair, qt and gtk2 have default result for that and escape key (you
>
> > > can set on dialog what is the value of default result for [X] and
>
> > > escape), result should be mrCancel in any case.
>
> >
>
> > +1
>
> >
>
> > The current result for Escape and [x] (at least under GTK2) is mrOK
>
> > which is very misleading.
>
>
> Maybe in case when there's only one button (mbOK). Have you tested 
> with eg. mbYes,mbNo or others ?
>
You are partially right on this. I tested all the buttons with 
MessageDlg and this is the order of precedence from high to low:
mrOK
mrCancel
mrNo
mrAbort
mrIgnore
mrNoToAll
mrYes
mrRetry
mrAll
mrYesToAll

if mbClose is the only button, the modal result is mrCancel.
>
> Also , maybe I didn't spotted that in my applications since i never 
> evaluate 1.
>
Pls disregard my point #1. It is not very logical.

Stephano
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