sending a message from one program to another

  • Thread starter Thread starter Matthijs de Z
  • Start date Start date
M

Matthijs de Z

Hi,

What is the best way to send a message from one application to another
and handle the incoming message?
What I would like to achieve is the following:

One application is running (app1). Another application is started
(app2) without app1 knowing it started. I would like to send a
signal / message from app2 to app1.

Any suggestions?
Regards,

Matthijs
 
Matthijs de Z said:
Hi,

What is the best way to send a message from one application to another
and handle the incoming message?
What I would like to achieve is the following:

One application is running (app1). Another application is started
(app2) without app1 knowing it started. I would like to send a
signal / message from app2 to app1.

Any suggestions?
Regards,

Matthijs
Click to expand...

I use ms message queue for this sort of thing.
Often you can't guarantee app1 is running.
Another simpler approach is a triggers/message table.
You write your data from app2 into this table.
App1 occasionally polls the table and sees what messages it's got.
An extension of this is available in some of the fancy new development stuff
such as silverlight and wpf.
You can have something called an observablecollection.
With newer versions of sql server it can notify changes to data.
Together with an observablecollection that app1 has open you could trigger
events just by app2 adding a record to a table.
 
Matthijs de Z said:
Hi,

What is the best way to send a message from one application to another
and handle the incoming message?
What I would like to achieve is the following:

One application is running (app1). Another application is started
(app2) without app1 knowing it started. I would like to send a
signal / message from app2 to app1.

Any suggestions?
Click to expand...

I guess it would be Windows Communications Foundation (WCF) using Named
Pipe, assumning the two programs are running loacally on the same machine.

app1 would host the WCF service, and app2 would be the client to app1. You
send a WCF message from app2 to app1.

You could also use WCF and MSMQ .

It's not that hard.
 
Hi,

What is the best way to send a message from one application to another
and handle the incoming message?
What I would like to achieve is the following:

One application is running (app1).  Another application is started
(app2) without app1 knowing it started. I would like to send a
signal / message from app2 to app1.

Any suggestions?
Regards,

Matthijs
Click to expand...

Hi Matthijs,

Maybe it's worth looking at NServiceBus?
http://www.nservicebus.com/

Kofi Sarfo
 
Hi Matthijs,

Maybe it's worth looking at NServiceBus?http://www.nservicebus.com/

Kofi Sarfo
Click to expand...

Thanks all for the tips / hinds. I didn't know where to start. Now
Google will be my friend for the next couple of days, together with
the key words mentioned by the three of you.
regards,

Matthijs
 
What is the best way to send a message from one application to another
and handle the incoming message?
What I would like to achieve is the following:

One application is running (app1). Another application is started
(app2) without app1 knowing it started. I would like to send a
signal / message from app2 to app1.
Click to expand...

There are lots of possibilities:

TCP/IP sockets
named pipes
traditional remoting
traditional asmx web service
message queue
enterprise services (COM+/DCOM)
shared memory
WCF

Which one is best will depend on:
- binary or text messages
- size of messages
- frequency of messages
- .NET version
- portability to Mono requirments

Arne
 
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