Best way to intercommunicate between apps

[EiSl]

Hello all, We've a couple of applications using to perform regression tests. The 'front-end' application which launches and controls all. Current situation (part of) - Front-end launches the 'big-app' and uses a fixed delay before continue operation to give 'big-app' the possibility to initialize itself. Bad part: fixed delay in combination with fast or slow PC. Prefered situation - Front-end launches the 'big-app' and continues execution when 'big-app' signals its ready to continue. My question: What is the best solution for this signalling event. I need no other info than: "I'm ready... go on". A named pipe looks a bit overkill too me. With regards, EizSl

[Tomasz Sowinski]

If the big guy is Windows (not console) app, you should use WaitForInputIdle. Tomasz Sowinski -- http://www.shooltz.com

Free your mind and your ass will follow.

[Pavel Klocek]

You can use named Win32 event - see CreateEvent and OpenEvent API functions or CEvent MFC class. Sonork 100.15206;PavelK

[Christian Graus]

WM_COPYDATA is hands down the easiest way to communicate between two processes. Christian We're just observing the seasonal migration from VB to VC. Most of these birds will be killed by predators or will die of hunger. Only the best will survive - Tomasz Sowinski 29-07-2002 ( on the number of newbie posters in the VC forum ) Cats, and most other animals apart from mad cows can write fully functional vb code. - Simon Walton - 6-Aug-2002

[EiSl]

Thx for reply Christian, You mean using the WM_COPYDATA with use of HWND_BROADCAST in SendMessage ? With regards, EiSl

[Christian Graus]

If you don't know the target HWND, yes. I have used it in the past by naming one of my apps so I can use EnumWindows to find it, send it my HWND, and then they can both talk to each other without sending a message to every window on the desktop. Christian We're just observing the seasonal migration from VB to VC. Most of these birds will be killed by predators or will die of hunger. Only the best will survive - Tomasz Sowinski 29-07-2002 ( on the number of newbie posters in the VC forum ) Cats, and most other animals apart from mad cows can write fully functional vb code. - Simon Walton - 6-Aug-2002