how to get the primary thread ID from a spcified process ID?

[yph20040107]

Given a process ID, how to get its PRIMARY thread ID? THANK YOU!

[Lost User]

All can be found in the documentation[^].

One of these days I'm going to think of a really clever signature.

[yph20040107]

hi, thanks. The GetProcessInformation() only works on Windows Server 2012,my system is WinXP,how can i do?

[Lost User]

Sorry, I did not notice that. I guess you need to look at the related functions to see if any of them provide the information you are looking for.

One of these days I'm going to think of a really clever signature.

[Lost User]

Enumerate all threads, and select the oldest as described here[^].

Bastard Programmer from Hell :suss: if you can't read my code, try converting it here[^]

[skydger]

Hello! You can use a combination of CreateToolhelp32Snapshot, Thread32First and Thread32Next functions. Please see this example from MSDN: http://msdn.microsoft.com/en-us/library/windows/desktop/ms686852(v=vs.85).aspx[^]