How link Windows GUI with GNAT

How link Windows GUI with GNAT

[Alfred Hilscher]

Hi,

a short question:

I've written a GUI app on WinNT. When I start it, it always opens a
console window first (although the GUI is show afterwards). From Aonix I
know, that I can direct the linker to produce a "console app" or a
"window app". How is it done with GNAT ? I didn't find a
correspondending linker-switch.

Re: How link Windows GUI with GNAT

[Ted Dennison]

In article <3B164B9C.2355F6E3@icn.siemens.de>, Alfred Hilscher says...
>
>I've written a GUI app on WinNT. When I start it, it always opens a
>console window first (although the GUI is show afterwards). From Aonix I
>know, that I can direct the linker to produce a "console app" or a
>"window app". How is it done with GNAT ? I didn't find a
>correspondending linker-switch.

I haven't tried this myself, but there's a cygwin gcc switch "-mwindows" that is
supposed to do this for you.

---
T.E.D.    homepage   - http://www.telepath.com/dennison/Ted/TED.html
          home email - mailto:dennison@telepath.com

Re: How link Windows GUI with GNAT

[Ed Falis]

Alfred Hilscher wrote:
>How is it done with GNAT ? I didn't find a
> correspondending linker-switch.

-mwindows

- Ed

Re: How link Windows GUI with GNAT

[John English]

Ted Dennison wrote:
> 
> In article <3B164B9C.2355F6E3@icn.siemens.de>, Alfred Hilscher says...
> >
> >I've written a GUI app on WinNT. When I start it, it always opens a
> >console window first (although the GUI is show afterwards). From Aonix I
> >know, that I can direct the linker to produce a "console app" or a
> >"window app". How is it done with GNAT ? I didn't find a
> >correspondending linker-switch.
> 
> I haven't tried this myself, but there's a cygwin gcc switch "-mwindows" that is
> supposed to do this for you.

It's actually a linker switch: "gnatmake foo.adb -largs -mwindows"
will do the trick.

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Re: How link Windows GUI with GNAT

[Alfred Hilscher]

Many thanks to all of you.

Alfred Hilscher wrote:
> "window app". How is it done with GNAT ? I didn't find a
> correspondending linker-switch.

Re: How link Windows GUI with GNAT

[Warren W. Gay VE3WWG]

John English wrote:
> Ted Dennison wrote:
> > In article <3B164B9C.2355F6E3@icn.siemens.de>, Alfred Hilscher says...
> > >I've written a GUI app on WinNT. When I start it, it always opens a
> > >console window first (although the GUI is show afterwards). From Aonix I
> > >know, that I can direct the linker to produce a "console app" or a
> > >"window app". How is it done with GNAT ? I didn't find a
> > >correspondending linker-switch.
> >
> > I haven't tried this myself, but there's a cygwin gcc switch "-mwindows" that is
> > supposed to do this for you.
> 
> It's actually a linker switch: "gnatmake foo.adb -largs -mwindows"
> will do the trick.

Yes, note the emphasis on "linker switch". If you omit -largs, the compile
and link will silently ignore the -mwindows option (if my memory serves).

FYI, note that if you have any Put_Line() etc. calls to the console window,
either from debug code or by design, with the -mwindows option used, your
application will exit (I observed the application returning status code 3
when this happens).  So you'll want to disable those, if they are present ;-)

-- 
Warren W. Gay VE3WWG
http://members.home.net/ve3wwg