[DUG] Sending data between process on same computer on windows

[Ross Levis]

I would use shared memory.  I use this free component.

http://www.torry.net/vcl/system/appscommunications/sharedmemory.zip

 

It uses a memory mapped file system but without a physical file.  It can use
messages for triggering events at each end, but I actually use a variable in
a record which I check in a 10ms loop to know when to do something.  It
works very well.

 

Ross.

 

From: delphi-bounces at delphi.org.nz [mailto:delphi-bounces at delphi.org.nz] On
Behalf Of Myles Penlington
Sent: Tuesday, 8 May 2007 9:40
To: NZ Borland Developers Group - Delphi List
Subject: RE: [DUG] Sending data between process on same computer on windows

 

Shared memory of course!

 

How much data are you talking about, how often?

 

For IPC, IMO, I would never use Sendmessage for something that needed to be
100% reliable.

 

Myles.

 

From: delphi-bounces at delphi.org.nz [mailto:delphi-bounces at delphi.org.nz] On
Behalf Of Leigh Wanstead
Sent: Tuesday, 8 May 2007 09:35
To: delphi at delphi.org.nz
Subject: [DUG] Sending data between process on same computer on windows

 

Hello everyone,

 

May I ask what is the fastest way to send data between process on same
computer on windows? I assume sendmessage api faster than semaphore waiting,
of course faster than TCP/IP which will go through huge amounts of tcp/ip
stack. I just want lowest overhead on per call. Anyone have any experiences
on that?

 

TIA

 

Regards

Leigh

www.smootharm.com

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