myvtm/libtoolkit/osutil.c

#include "precompile.h"
#include "osutil.h"
#include <TlHelp32.h>

TOOLKIT_API int osutil_detect_unique_app(char **pNames, int nNum)
{
	//const WCHAR *exe;
	HANDLE hSnapshot;
	int rc = TRUE;

	/*{
		WCHAR *t = (WCHAR*)_alloca(MAX_PATH);
		GetModuleFileNameW(NULL, t, MAX_PATH);
		exe = wcsrchr(t, '\\') + 1;
	}*/
	DWORD dwCurProcID = GetCurrentProcessId();

	hSnapshot = CreateToolhelp32Snapshot(TH32CS_SNAPPROCESS, 0);
	if (hSnapshot) {
		PROCESSENTRY32 pe;
		pe.dwSize = sizeof(pe);
		if (Process32First(hSnapshot, &pe)) 
		{
			do 
			{
				int i;
				for (i = 0; i < nNum; i++)
				{
					if (stricmp(&pe.szExeFile[0], pNames[i]) == 0 && pe.th32ProcessID != dwCurProcID)
					{
						rc = FALSE;
						break;
					}
				}
			} while (Process32Next(hSnapshot, &pe));
		}
		CloseHandle(hSnapshot);
	}

	return rc;
}