//at beginning of your programm#define SEMAPHORE_UNIQUE "Global\\LIPANv2Unique_2FA34E51"


#ifdef SINGLE_APPINSTANCE
#ifdef PLATFORM_WIN32
	USemh = OpenSemaphore(STANDARD_RIGHTS_ALL, FALSE, SEMAPHORE_UNIQUE);
	if(USemh == NULL)
		USemh = CreateSemaphore(NULL, 0, 1, SEMAPHORE_UNIQUE);
	else
	{
		wq & THISBACK1(Closer, "Application already started!!"); //prepare
		return;
	}
#elif defined(PLATFORM_POSIX)
#endif
#endif

//program runtime....


//at end of your program
#ifdef SINGLE_APPINSTANCE
#ifdef PLATFORM_WIN32
	if(USemh != NULL)
		CloseHandle(USemh);
	USemh = NULL;
#elif defined(PLATFORM_POSIX)
#endif
#endif