fixed some heavy pointermistakes

windowrace.cpp

@@ -4,6 +4,7 @@
 #include <string>
 #include <sstream>
 #include <iostream>
+#include "unistd.h"
 
 using std::vector;
 using std::string;
@@ -175,8 +176,8 @@ void WindowRace::setDriverAndCarId(vector<QString> vec){
 }
 void WindowRace::closeEvent(QCloseEvent *event){
     QMessageBox msgBox;
-    msgBox.setText("The document has been modified.");
-    msgBox.setInformativeText("Do you want to save your changes?");
+    msgBox.setText("Wirklich schliessen?");
+    msgBox.setInformativeText("");
     msgBox.setStandardButtons(QMessageBox::Save | QMessageBox::Discard | QMessageBox::Cancel);
     msgBox.setDefaultButton(QMessageBox::Save);
     int ret = msgBox.exec();
@@ -235,6 +236,15 @@ void WindowRace::countdownUpdate(){
 
 WindowRace::~WindowRace()
 {
+    this->startAmpelThread->setStop();
+    this->countdown->setStop();
+    this->Hardware->setStop();
+    usleep(1000010); //eine Sekunde
+
+    delete this->countdown;
+    delete this->Hardware;
+    delete this->startAmpelThread;
+
     delete ui;
 }
 void WindowRace::shellSlot(){
@@ -362,5 +372,4 @@ void WindowRace::ampelSlot(){
 
 void WindowRace::go(){
     startAmpelThread->start();
-
 }