DELPI 5 + NEED HELP GUYS Sendin command to anotha applicaton

yes there are severeal possibilities to send commands to other applications.
You can make a api sendMessage if you have the handle of the other application
You can implement a COM interface in the other application.
You can open a TCP/IP or UDP socket on the other connection
a.s.f.
to determine what will be right fitting it would be nessesary to know what you are planning to do.

tracing changes in another application? I am not sure what you mean ...

you can exchange commands or data between two or more applications by using windows messages, but that should be prepared in the two applications, I mean if u send a message from one application to another, the recpient application should accept capturing messages...
or u can build a connection socket, and make a connection channel between the two aplications through the socket.

Hhmmm...guys thx again for ur attention....
i tried Postmessage ....but i constantly recieve error...
I can't prepare anotha application to recieve my commands...:( umm...i try to explain a bit more....like if i click on otha application n type anytin n press enter:) ...this leads to exucution or failure of the command...and i'm askin how can i make my program to do this?

and by tracin..i meant...like if i finally sent command and it worked...program responds...n can my program get that respond somehow?

sendmessage(findwindow(nil,'name', "CTRL+N",0,0));
i get error here....tried without ""..tried everything:) doesn't work:(

Kaspy:
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