Checking if a process is running (problems including psapi.dll i think...)
Posted on
16th Feb 2014 07:03 pm by
admin
Ok, so all I'm trying to do is check if a program is running...
I've found out that I need to include psapi.dll (to use the EnumProcesses() & GetModuleBaseName() functions)...now, I'm not too knowledgeable with including dll's...but I researched it and believe I have it right.
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But for some reason I'm getting this error :/ (I'm using code blocks compiler btw):
Quote: main.cpp|26|error: invalid initialization of non-const reference of type 'DWORD&' from a temporary of type 'DWORD (*)[1024]
I don't really understand this message...although I think it's something to do with my typedef that's attempting to load the DLL function EnumProcesses()...
Anywho, here's my code.
Code:
#include
#include
#include
using namespace std;
bool proc(string process_name)
{
//type definition for paspi.lib
typedef int (__stdcall *process_dll)(DWORD &processes, DWORD process_size, DWORD &process);
//load the psapi library
HINSTANCE dll = LoadLibrary("psapi.lib");
process_dll _processes;
_processes = (process_dll) GetProcAddress(dll, "EnumProcesses");
if(_processes == 0)
{
return _processes;
}
//define process vars
DWORD processes[1024], process;
//get current processes
if(!_processes(&processes, sizeof(processes), &process))
{
return false;
}
//iterate through each process
for(unsigned int i = 0; i < process / sizeof(DWORD); i++)
{
if(processes[i] == 0)
{
continue;
}
HANDLE ph = OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ, 0, processes[i]);
char buffer[50];
GetModuleBaseName(ph, 0, buffer, sizeof(buffer));
CloseHandle(ph);
if(process_name == (string) buffer)
{
return true;
}
}
return false;
}
int main(int argc, char *argv[])
{
if(proc("some proc name"))
cout << "process is running";
else
cout << "process is not running";
return 0;
}
Any help would be greatly appreciated
Thanks a lot,
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