Re: Waiting for a signal...

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#15313

From: Remy Lebeau (TeamB)
Date: Wed, 09 Jul 2003 16:47

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"Pang Fu" <nospam_pangfu@hotmail.com> wrote in message
news:3f0c1f49$1@newsgroups.borland.com...

> Say I have two threads in a BCB application. The
> first one will wait for a signal from the second one.

Look at the CreateEvent(), SetEvent() and WaitForSingleObject() functions in
the Win32 API.  Create an event object that both threads have a HANDLE to.
Then the first thread can call SetEvent() and the other thread can call
WaitForSingleObject() to wait until the event is signalled.

> Ans also how this wait/signal works accross the applications?

Same way.  CreateEvent() has an lpName parameter so that you can give the
event object a name.  When multiple threads/processes call CreateEvent()
passing it the same name, they all receive a HANDLE to the same event object
which is then shared between them.


Gambit

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From: "Remy Lebeau \(TeamB\)" <gambit47@yahoo.com>
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Subject: Re: Waiting for a signal...
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