DWORD WINAPI NewThread5(PVOID d){
    HANDLE hdl = CreateMutexA(0,true,"Mu");
    auto* k = (MainWindow*)d;
    for(int j =0; j < 30; j++){
        WaitForSingleObject(hdl,INFINITE);
        k->s+=5;
        Sleep(5);
        k->s-=5;
        emit k->bell(k->s);
    }
    ReleaseMutex(hdl);
}



DWORD WINAPI NewThread6(PVOID d){
    HANDLE hdl = OpenMutexA(0,0,"Mu");
    WaitForSingleObject(hdl,INFINITE);
    auto* k = (MainWindow*)d;
    for(int j =0; j < 30; j++){

        k->s-=5;
        Sleep(5);
        k->s+=5;
        emit k->bell2(k->s);
    }

}