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Always send message on destroy

Posted on 2001-08-24
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Last Modified: 2010-04-06
Hi

I have two applications, the one should know if the other program is startet.
So my plan is that I send a message on startup and another one in the OnDestroy, but am I always sure that this message will be send if the program craches ?

Any ideas how to handle it.
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Question by:bnz
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Expert Comment

by:robert_marquardt
ID: 6422944
Create a global WH_SHELL hook and you will be informed of all program starts and ends.
The hook has to reside in a DLL.
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Author Comment

by:bnz
ID: 6423119
Hmm it seems like a bit of a overkill, is there not an easier way.
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Expert Comment

by:YodaMage
ID: 6423314
You'd have to check for the other program on a timer. Biggest drawback is the wasted resources of a constantly running routine on a timer in the first place.
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sundayboys earned 200 total points
ID: 6424064
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LVL 9

Expert Comment

by:ITugay
ID: 6424491
Hi bnz,

there is DDE components in Delphi. It intended to build conversation mechanizm between applications. May be it will be usefull for you.

-----
Igor
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