3 replies to this topic

[infineonintern]

hello, is it possible that when i run a program on computer A, it will trigger the serial port of computer B so that another program in computer B will run? The computers are connected by a null modem cable and both programs are written in C++ language and is running in a console application.

The programs are actually a kind of text file transferring between two computers where computer B will read a content from an existing textfile in that computer and send it line by line untill the end of line to computer A and exits itself. Computer A will log the textfile content into a newly created textfile.

The program is currently working but i have to run the program in computer A first which will start polling for an input and then i go to computer B to click and run the program so that it will start transferring.

My question is, can i do it in a way that when i run the program in computer A, it will automatically trigger the program in computer B to run without having to click on the program in computer B to run? If it is possible, how can i do it in c++? Does the program in computer B have to be in a sleep mode? I can paste the code for the programs in computer A and computer B if needed. Thanks!

[Orjan]

You would always need a program on both computers, one could be a system service listening to the serial port on B, or a program that's always in startup.

[infineonintern]

Orjan said:

You would always need a program on both computers, one could be a system service listening to the serial port on B, or a program that's always in startup.

How can i run a system service? Will the system service be taking alot of space? Can the system service be in sleep mode? new in serial port and c programming, pls guide!

[Orjan]

I have no experience in programming it, but I know it can be done. A service is a program in sleep until something triggers it, like a Web server, does nothing until someone calls for a page.