C++ Check if specific process is running - c++

Question

I have a C++ DLL that i am writing that needs to check if a particular process is running.
the dll will be launched application will be running in:
c:\Directory\application.exe
there is a subdirectory within that that has another executable in it:
c:\Directory\SubDirectory\application2.exe
What the DLL needs to do when it runs if check that application2.exe is running, most importantly that it is running within that folder -- there will be multiple copies running, so we need to ensure that the correct one is running.
I have the following code that is working well at detecting that the application2.exe is running, but it does not take the file path into consideration:
HANDLE pss = CreateToolhelp32Snapshot(TH32CS_SNAPALL, 0);
PROCESSENTRY32 pe = { 0 };
pe.dwSize = sizeof(pe);
if (Process32First(pss, &pe))
{
do
{
if(wcscmp(pe.szExeFile, L"application2.exe") == 0)
{
CloseHandle(pss);
return (1);
}
}
while(Process32Next(pss, &pe));
}
CloseHandle(pss);
How can I check that the path of the process matches the path of the application which called the DLL?

Answer 1

Use WMI for this.
From the command line you can do:
wmic process where "executablepath = 'c:\path\to\executable.exe'" get ProcessId
You can use the WMI apis from C++ to do something similar.
http://www.codeproject.com/Articles/10539/Making-WMI-Queries-In-C

Answer 2

I have been given a solution that works for this, in case anyone else searching here it is:
HANDLE ProcessSnap;
PROCESSENTRY32 Pe32;
unsigned int LoopCounter = 0;
Pe32.dwSize = sizeof(PROCESSENTRY32);
ProcessSnap = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
Process32First(ProcessSnap, &Pe32);
wchar_t TermPath[MAX_PATH];
GetModuleFileName(NULL, TermPath, MAX_PATH);
wstring WTermPath(TermPath);
int index = WTermPath.find(L"\\application.exe");
wstring Path = WTermPath.substr(0, (index));
Path = Path + L"\\SubDirectory\\Application2.exe";
do
{
HANDLE Process;
wchar_t FilePath[MAX_PATH];
Process = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, 0, Pe32.th32ProcessID);
if (Process)
{
GetModuleFileNameEx(Process, 0, FilePath, MAX_PATH);
wstring WFilePath(FilePath);
if(WFilePath == Path)
{
CloseHandle(ProcessSnap);
return (1);
}
CloseHandle(Process);
}
LoopCounter++;
} while (Process32Next(ProcessSnap, &Pe32));
CloseHandle(ProcessSnap);