How to get the process name in C++

Question

How do I get the process name from a PID using C++ in Windows?

Answer 1

I guess the OpenProcess function should help, given that your process possesses the necessary rights. Once you obtain a handle to the process, you can use the GetModuleFileNameEx function to obtain full path (path to the .exe file) of the process.

#include "stdafx.h" #include "windows.h" #include "tchar.h" #include "stdio.h" #include "psapi.h" // Important: Must include psapi.lib in additional dependencies section // In VS2005... Project > Project Properties > Configuration Properties > Linker > Input > Additional Dependencies  int _tmain(int argc, _TCHAR* argv[]) {     HANDLE Handle = OpenProcess(         PROCESS_QUERY_INFORMATION | PROCESS_VM_READ,         FALSE,         8036 /* This is the PID, you can find one from windows task manager */     );     if (Handle)      {         TCHAR Buffer[MAX_PATH];         if (GetModuleFileNameEx(Handle, 0, Buffer, MAX_PATH))         {             // At this point, buffer contains the full path to the executable         }         else         {             // You better call GetLastError() here         }         CloseHandle(Handle);     }     return 0; } 

Answer 2

You can obtain the process name by using the WIN32 API GetModuleBaseName after having the process handle. You can get the process handle by using OpenProcess.

To get the executable name you can also use GetProcessImageFileName.