MFC, Hiding a dialog-based app

Enrico Levrin
#1 / 5

Hiding a dialog-based app

I have an dialog-based application that, among other things, places an icon
in the system drawer. I wolud like to hide everything except form the icon
in the system drawer.
I tried overriding ShowWindow(), PreCreateWindow(), changing styles, etc.
with no results. The dialog window keeps on showing even if, after that, I
do succeed in e.g. minimizing it, etc.

Any help?

Thanks.

Enrico

Wed, 15 Nov 2000 03:00:00 GMT

Enrico Levrin
#2 / 5

Hiding a dialog-based app

Unfortunately this does not seem to be the case (if I do not get wrong on
something else..). If you put it in CYourDlg::InitDialog() this does not
prevent the dialog to show (remember it is a dialog-based app).
This is just the problem I have.

Thanks

Quote:

>> I have an dialog-based application that, among other things, places an
icon
>> in the system drawer. I wolud like to hide everything except form the
icon
>> in the system drawer.
>> I tried overriding ShowWindow(), PreCreateWindow(), changing styles, etc.
>> with no results. The dialog window keeps on showing even if, after that,
I
>> do succeed in e.g. minimizing it, etc.

>> Any help?

>> Thanks.

>> Enrico

>No problem

>CYourDlg::ShowWindow(SW_HIDE);

>Does what you want.

>Tim

Thu, 16 Nov 2000 03:00:00 GMT

Tim
#3 / 5

Hiding a dialog-based app

Quote:

> I have an dialog-based application that, among other things, places an icon
> in the system drawer. I wolud like to hide everything except form the icon
> in the system drawer.
> I tried overriding ShowWindow(), PreCreateWindow(), changing styles, etc.
> with no results. The dialog window keeps on showing even if, after that, I
> do succeed in e.g. minimizing it, etc.

> Any help?

> Thanks.

> Enrico

No problem

CYourDlg::ShowWindow(SW_HIDE);

Does what you want.

Tim

Fri, 17 Nov 2000 03:00:00 GMT

Tim
#4 / 5

Hiding a dialog-based app

Quote:

> Unfortunately this does not seem to be the case (if I do not get wrong on
> something else..). If you put it in CYourDlg::InitDialog() this does not
> prevent the dialog to show (remember it is a dialog-based app).
> This is just the problem I have.

> Thanks

> >> I have an dialog-based application that, among other things, places an
> icon
> >> in the system drawer. I wolud like to hide everything except form the
> icon
> >> in the system drawer.
> >> I tried overriding ShowWindow(), PreCreateWindow(), changing styles, etc.
> >> with no results. The dialog window keeps on showing even if, after that,
> I
> >> do succeed in e.g. minimizing it, etc.

> >> Any help?

> >> Thanks.

> >> Enrico

> >No problem

> >CYourDlg::ShowWindow(SW_HIDE);

> >Does what you want.

> >Tim

The CYourDlg::ShowWindow(SW_HIDE); call must be made after the window
is already visable - I am also tring to start my dlg based app without
it being shown at all till I tell it to.

Tim

Fri, 17 Nov 2000 03:00:00 GMT

David Lownd
#5 / 5

Hiding a dialog-based app

Quote:

>Unfortunately this does not seem to be the case (if I do not get wrong on
>something else..). If you put it in CYourDlg::InitDialog() this does not
>prevent the dialog to show (remember it is a dialog-based app).

I've not come across a really elegant way of doing this. The best I've
got is to post a user defined message in OnInitDialog, and position
the dialog off-screen. In the processing of the user defined message
hide the window, and when you want to display it you can reposition
it. Here's the general idea:

BEGIN_MESSAGE_MAP(CMindlgDlg, CDialog)
//{{AFX_MSG_MAP(CMindlgDlg)
...
//}}AFX_MSG_MAP
ON_MESSAGE( WM_APP+1, OnAppMsg )
END_MESSAGE_MAP()

BOOL CMindlgDlg::OnInitDialog()
{
...

// TODO: Add extra initialization here
SetWindowPos( NULL, -1000, -1000, 0, 0,
SWP_NOZORDER | SWP_NOSIZE | SWP_NOACTIVATE );

PostMessage( WM_APP+1 );

return TRUE;

Quote:

}

LRESULT CMindlgDlg::OnAppMsg(WPARAM, LPARAM)
{
ShowWindow( SW_HIDE );
return 0;

Quote:

}

Dave
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Sat, 18 Nov 2000 03:00:00 GMT