MFC Single Instance application using Registry settings

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Hi guys, am in MFC project my task is to make mu application as a single instance using registry settings.

I want to know about how to store my application state in registry. if you know explain me.....

Thanks in advance
ganesh_IT

Posted 23-Mar-11 21:03pm

ganesh_IT

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Prerak Patel · Answer 1 · 2011-03-23T21:17:00

Solution 1

Limiting an application to a single Instance - the MFC way[^]
CSingleInstance - Single Instance Apps[^]
MFC extension library : Single instance Plug-In[^]

Google[^] has many more ways.

Posted 23-Mar-11 21:17pm

Prerak Patel

Comments

Sergey Alexandrovich Kryukov 24-Mar-11 3:23am

Good sources, my 5. Also, please see my Answer.
--SA

Espen Harlinn 24-Mar-11 3:32am

Perfect links, my 5

Sergey Alexandrovich Kryukov · Answer 2 · 2011-03-23T21:22:00

No! Do anything but not Registry for this purpose. I saw many bad methods, but this is the worst; I never head of such thing before. There are many civilized ways:

1) Use some IPC with unique name; the unique name can be the full path name of your executable.

1a) IPC: shared memory. This memory can also be used to put command line parameters from second instance to be passed to the first one.

1b) IPC: named pipes. The pipe transport can also be used to put command line parameters from second instance to be passed to the first one.

2) List all processes running is system. If the process of the same application is found, the running instance is the second one, to be terminated.

—SA