How to find cmd.exe process id from which app is started?

Question

I have simple win application(writen using .net C#) that needs to be started from cmd.exe, and then write to that console, but problem is that i need process id from that cmd.exe process. I can get all running process,

Process[] procList = Process.GetProcessesByName("cmd");

but how to find my? :)

Maybe to read input, and check is "ApplicationName.exe" writen inside, or to get curently active cmd.exe window? But with what function?

Answer 1

Even if you find "yours" cmd, how are you going to write into it?

There is a better way to achieve what you describe. Just compile your project as "Console Application", but have it create a WinForms window anyway. Yes, it is possible, nothing stops you from it. Then you would be able to write to the console using your System.Console class, no magic required.

Answer 2

Its not problem to write, using AttachConsole and using WriteConsoleInput i allready tested all, my program is command line anyway, but problem is that i need to hide console if parameter is set up, but if i compile as console application, and in main function use ShowWindow to hide console, console appears for milisecund and then disapere, and i cant overide that, or is there any way to do that?

So that's why i compile my console app as windows, and allocate new console if "-verbose" parameter is set up, and everything is running fine if i double click on program, but if i try to run program from command line application, then my programm allocate another cmd windows, and i need to find my parent cmd windows and connect there using AttachConsole, but problem is to find that window :).

So? ;)

Answer 3

The following code creates a WQL event query to detect a new process, waits for a new process to start and then displays the information about the process:

WqlEventQuery query = new WqlEventQuery("__InstanceCreationEvent", new TimeSpan(0, 0, 1), "TargetInstance isa \"Win32_Process\"");
ManagementEventWatcher watcher = new ManagementEventWatcher(query);
ManagementBaseObject e = watcher.WaitForNextEvent();
Console.WriteLine("Process {0} has been created, path is: {1}", 
((ManagementBaseObject)e["TargetInstance"])["Name"],
((ManagementBaseObject)e["TargetInstance"])["ExecutablePath"]);
watcher.Stop();

I think you may find a solution to your problem by examining this WMI code sample. Hope it helps.