find out all windows processes:
#include <stdio.h>
#include <Windows.h>
#include <TlHelp32.h>
int
main(void)
{
HANDLE snapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
PROCESSENTRY32 process;
ZeroMemory(&process, sizeof(process));
process.dwSize = sizeof(process);
if (Process32First(snapshot, &process)) {
do {
printf("Process Name:%s \n",process.szExeFile);
} while (Process32Next(snapshot, &process));
}
CloseHandle(snapshot);
return 0;
}