Message pump

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Francois Piette - 18 Sep 2003 15:22 GMT

I'm new to DotNet, so excuse my stupid questions -(
I have to port a Windows program making use of Windows messaging system
(PostMessage with custom messages). Does DotNet programs have a message pump
? Do we have access to the window handle of each form or control ? How do I
write a message handler ?

--
francois.piette@overbyte.be
http://www.overbyte.be

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Mattias Sj?gren - 18 Sep 2003 21:13 GMT

Francois,

microsoft.public.dotnet.framework.windowsforms is a better group for
Windows Forms related questions.

>Does DotNet programs have a message pump?

Yes, it's started when you call Application.Run().

>Do we have access to the window handle of each form or control ?

Yes, check the Handle property.

>How do I write a message handler ?

You can override the virtual WndProc method and handle any custom
message.

Mattias

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Mattias Sjögren [MVP] mattias @ mvps.org
http://www.msjogren.net/dotnet/
Please reply only to the newsgroup.

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jl.altair - 08 Dec 2003 12:26 GMT

        [STAThread
        static void Main()

            Application.Run(new Form1())

        protected override void WndProc(ref Message m)
            int intTRUE        = 0x1
            int intFALSE    = 0x0
            switch (m.Msg)
                case WM_SYSCOMMAND
                    if(m.WParam.ToInt32() == SC_SCREENSAVE)
                        if(numeroDeCiclos < 10)
                            m.Result = (IntPtr)intTRUE
                            return

                        else



                    break
                default
                    break

            base.WndProc (ref m)
        }

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