how to send data between two program

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Hi i have 2 program and when i click the button in program A it will open program B and now i want to send something from program A to program B how can i do it?

additional information copied from comment below [Nelek]
i want to send some info from program A to program B and with this program B can't work without program A (means you just can open it from program A) and i don't want program B open without click the button in program A

Posted 8-Nov-14 6:02am

Avenger1

Updated 8-Nov-14 11:56am

Nelek

v2

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Maciej Los 8-Nov-14 16:29pm

What you mean by "send data between two programs"?
You should be more specific and provide more details about your requirements!

Avenger1 8-Nov-14 16:51pm

i want to send some info from program A to program B and with this program B can't work without program A (means you just can open it from program A) and i don't want program B open without click the button in program A

[no name] 8-Nov-14 18:53pm

Also keen on to get an answer on this. Especally the answer also is true for e.g. A is Service and B. is app.

My 5 for your question, even my 5 are very small compared to other downvotes :(

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Mehdi Gholam · Answer 1 · 2014-11-08T06:15:00

Solution 1

You can use :
1) a file
2) a socket
3) a named pipe
4) a TCP packet

Posted 8-Nov-14 6:15am

Mehdi Gholam

Comments

[no name] 8-Nov-14 18:02pm

In case one of the process is a Service and other a "simple" app, what do you suggest is the best of the 4 you listed?
Thanks and 5, Bruno

Sergey Alexandrovich Kryukov 8-Nov-14 21:58pm

My answer: it depends. In most cases, not #1.
—SA

[no name] 9-Nov-14 9:13am

Hello Sergey, thank you for your assessment.

It depends…depends on what?
Of course, first I like to have the speediest connection with the lowest resource consumption. And second I don’t want that user needs to concern about selection of something like a Port Number which is needed for socket, tcp.
Pipes (and maybe mailslots): I did not check it until now, but do pipes really work over session boundaries? I had to make the (for me very surprising) experience, that e.g. mutex fail over sessions.
I’m still looking for an easy and session independent IPC. I personally prefer tcp, but how can I handle port selection without the need that user has to do this?

And all this with outdated bcb6 :(

Help on this is very much appreciated.
Thanks. Bruno

Mehdi Gholam 9-Nov-14 10:14am

Communications are all about messages so mutexes are out of the question.

Now to send messages you need to agree about the format and endpoints before hand (the contract) so ports are a given.

Personally I prefer TCP to unwieldy things like WCF (and named pipes require computer authentication before connecting), take a look at my article here for simple plugin communication : http://www.codeproject.com/Articles/156765/WCF-Killer

[no name] 9-Nov-14 11:53am

Thank you very much for this.
May I pierce you with some questions about his?
Bruno

Sergey Alexandrovich Kryukov 9-Nov-14 13:06pm

It means that that the choice problem should only be considered when some essential detail of the problem are known. Depends on what? On many factors: how much data and how regular is the exchange, data structure, purpose, some views of further development... It doesn't make much sense trying to cover all possible cases, etc. Such things should be considered case-by-case.
—SA

Mehdi Gholam 9-Nov-14 1:08am

It depends on what you are communicating, how often and fast you want to do it, etc.

Sergey Alexandrovich Kryukov 8-Nov-14 21:57pm

5ed.
—SA

Mehdi Gholam 9-Nov-14 1:06am

Cheers Sergey!

CPallini · Answer 2 · 2014-11-08T07:19:00

Solution 2

C# inter-process communication[^].

Posted 8-Nov-14 7:19am

CPallini

Comments

[no name] 8-Nov-14 18:05pm

No Google does not help really. This Q Comes again and again and I feel nobody has really a concrete answer...especally if the processes are a mix of Service and normal apps.

Of course e.g. tcp can be a solution....but for simple IPC I don't like to bother customer to choose a port....