Re: Application object of a running application

From:
"Scott McPhillips [MVP]" <org-dot-mvps-at-scottmcp>
Newsgroups:
microsoft.public.vc.mfc
Date:
Tue, 22 Apr 2008 09:26:20 -0400
Message-ID:
<#Dzg6xHpIHA.4928@TK2MSFTNGP04.phx.gbl>
"Ajay Shinde" <AjayShinde@discussions.microsoft.com> wrote in message
news:6DFAC166-2FA2-4CC6-AED5-61A9DA1FA518@microsoft.com...

Dear All,

I have developed a MFC dialog based application. In this applicaion I am
detecting running instance of the application by using mutex object.

HANDLE hMutex;
hMutex = CreateMutex(NULL, TRUE, "App.exe");
if(GetLastError() ==ERROR_ALREADY_EXISTS)
{ // Mutex exists so there is a running instance of app
       hMutex = NULL;
       break;
}

However If my application is already running I want to get the application
object and need to call some methods using application
object(CWinApp,CDialog).

Please suggest how do I achieve this.

Thanks in advance.


You can not call another application (or another copy of your application).
What you can do is send a window message to the main window of the other
application. You can find that window with FindWindow, and them use
SendMessage to send a message. If you want to send some data with the
message use the WM_COPYDATA message.

--
Scott McPhillips [VC++ MVP]

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