Re: Avoiding multiple programinstances and restore the firstone

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#6580

From: Hans Galema
Date: Fri, 22 Apr 2005 17:33

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Hans Galema wrote:

> What I meant was that you can omit the mutex: (untested)

Now tested. This works ok and has less code and is much faster
as my original post.

> bool StartNewInstance( AnsiString NAME, AnsiString MUTEX )
> {
>       AnsiString OldTitle =  Application->Title;
> 
>       Application->Title = "Something different";
>       HWND FirstWnd;
>       FirstWnd = ::FindWindow( "TApplication", NAME.c_str() );
>       // TApplication ???

Yes: TApplication. You could provide a NULL too.

> 
>       if ( FirstWnd )
>     {
>           if ( ::IsIconic( FirstWnd ) ) ::ShowWindow( FirstWnd,
>         SW_SHOWDEFAULT );
>           ::SetForegroundWindow( FirstWnd );
>          
>     Application->Title = OldTitle;
> 
>         return ( false );
>         }
> 
>      Application->Title = OldTitle;
> 
>    return ( true );
> }

Hans.

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