limit app to one instance

[big_denny_200]

hi all:) i have a mfc dialog application in Visual Studio 2005. How to limit it to one instance ? thank you.

[tbrake]

Hi A common way to handle one instance is using an identifier BOOL CMyApp::InitInstance() { HANDLE hMutex = CreateMutex (NULL, TRUE, "MY APP IDENTIFICATION"); if (GetLastError() == ERROR_ALREADY_EXISTS) { AfxMessageBox("Alreay running!"); return FALSE; } if(hMutex) ReleaseMutex (hMutex); ... } CU Timen

[PJ Arends]

There are lots of CP articles on the subject. Do a search. http://www.codeproject.com/info/search.asp?target=single+instance&st=kw&qm=all[^]

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[David Crow]

See here.

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[ThatsAlok]

big_denny_200 wrote:

How to limit it to one instance ?

http://www.codeproject.com/cpp/csingleinst.asp[^]

"Opinions are neither right nor wrong. I cannot change your opinion. I can, however, change what influences your opinion." - David Crow

cheers, Alok Gupta VC Forum Q&A :- I/ IV