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Article #9854

Re: Creating a Window from a Console App... How to?!?

#9854
From: Filippo
Date: Fri, 11 Jun 2004 13:49
63 lines
2991 bytes
WOW!
thanks! Now seems it works!
    thanks in advance,
        Filippo

"Ed Mulroy [TeamB]" <dont_email_me@bitbuc.ket> wrote in message
news:40c9a47f@newsgroups.borland.com...
> I cannot with certainty tell you why it does that, but there are three
> things in that code which I think must be changed.
>
>
> The program's instance is not given in this call
>
> > hWnd=CreateWindowEx(WS_EX_OVERLAPPEDWINDOW,
> >     szAppName, "Test Window",
> >     WS_OVERLAPPEDWINDOW | WS_VISIBLE,
> >     CW_USEDEFAULT, CW_USEDEFAULT, 500, 500,
> >     NULL, NULL, NULL, NULL );
>
> Change the call to this
>
>   hWnd=CreateWindowEx(WS_EX_OVERLAPPEDWINDOW,
>       szAppName, "Test Window",
>       WS_OVERLAPPEDWINDOW | WS_VISIBLE,
>       CW_USEDEFAULT, CW_USEDEFAULT, 500, 500,
>       NULL, NULL, _hInstance, NULL );
>
> _hInstance contains the instance handle for your program and is a
> variable created by the startup code.  Add this line following the
> includes to declare it for the program:
>
>   extern HINSTANCE _hInstance;
>
>
> You have a case for WM_DESTROY but no case for WM_CLOSE.  Add a
> WM_CLOSE case and either let it fall through to the WM_DESTROY case or
> have it call PostMessage to post a WM_DESTROY to the window.
>
>
> The code uses CreateThread.  It should use one of _beginthread or
> _beginthreadNT and not CreateThread so that TLS is properly
> initialized.  Read the help on _beginthread for more details of why it
> should be used instead of CreateThread.
>
> .  Ed
>
> > Filippo wrote in message
> > news:40c98aec$1@newsgroups.borland.com...
> > Hello,
> >     I try to create a window from a Console App (so with main() and
> without
> > the 'WinMain...').
> >     To do this I created a new thread inside the main console app
> that
> > register the window and show it... seems to work but...
> >     I have some problem when I try to resize the window... all the
> desktop
> > become white! without refreshing it.
> >     How can I create a window from a console app not in this 'dirty'
> way?
> > ...
>
>
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Subject: Re: Creating a Window from a Console App... How to?!?
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