diff --git a/main.cpp b/main.cpp
index 9b76250..ebac144 100644
--- a/main.cpp
+++ b/main.cpp
@@ -3,8 +3,8 @@
 
 #include <QtGui>
 #include <QtUiTools>
-#include <QGLWidget>
-#include <QtMultimedia/QSound>
+#include <QOpenGLWidget>
+#include <QtMultimedia/QSoundEffect>
 #include <chicken.h>
 #include <assert.h>
 
@@ -38,18 +38,17 @@ public slots:
 };
 
 
-class GLWidget: public QGLWidget
-{
+class OpenGLWidget: public QOpenGLWidget {
   void *thunk;
 
 public:
-  GLWidget(char *name, QWidget *parent, C_word proc) : QGLWidget(parent) {
+  OpenGLWidget(char *name, QWidget *parent, C_word proc) : QOpenGLWidget(parent) {
     setObjectName(name);
     thunk = CHICKEN_new_gc_root(); 
     CHICKEN_gc_root_set(thunk, proc);
   }
 
-  ~GLWidget() { CHICKEN_delete_gc_root(thunk); }
+  ~OpenGLWidget() { CHICKEN_delete_gc_root(thunk); }
 
 protected:
   // Set up the rendering context, define display lists etc.:
@@ -65,9 +64,9 @@ protected:
 #define qtapplication     QApplication *
 #define qtreceiver        SimpleReceiver *
 #define qtwidget          QWidget *
-#define qtpixmap           QPixmap *
+#define qtpixmap          QPixmap *
 #define qttimer           QTimer *
-#define qtsound           QSound *
+#define qtsound           QSoundEffect *
 #define qttextedit        QTextEdit *
 #define qtaction          QAction *
 
@@ -174,21 +173,28 @@ int qt_message(char *caption, char *text, QWidget *parent, char *b0, char *b1, c
 }
 
 
-#define propsetter(name, type)					     \
+#define propsetter(name, type, metatype)                                         \
 ___bool qt_set ## name ## property(QWidget *w, char *prop, type val) \
 { \
   const QMetaObject *mo = w->metaObject(); \
   int i = mo->indexOfProperty(prop); \
   if(i == -1) return 0; \
-  else return mo->property(i).write(w, val); \
+  else return mo->property(i).write(w, QVariant(QMetaType(metatype), &val)); \
 }
 
 
-propsetter(string, char *)
-propsetter(bool, ___bool)
-propsetter(int, int)
-propsetter(float, double)
-propsetter(char, char)
+propsetter(bool, ___bool, QMetaType::Bool)
+propsetter(int, int, QMetaType::Int)
+propsetter(float, double, QMetaType::Double)
+propsetter(char, char, QMetaType::Char)
+
+___bool qt_setstringproperty(QWidget *w, char *prop, const char* val)
+{
+  const QMetaObject *mo = w->metaObject();
+  int i = mo->indexOfProperty(prop);
+  if(i == -1) return 0;
+  else return mo->property(i).write(w, QVariant(val));
+}
 
 
 ___bool qt_setpixmapproperty(QWidget *w, char *prop, qtpixmap val)
@@ -206,9 +212,9 @@ ___bool qt_setpointproperty(QWidget *w, char *prop, int *val)
   int i = mo->indexOfProperty(prop);
   if(i == -1) return 0;
   else {
-    switch(mo->property(i).type()) {
-    case QVariant::Point: return mo->property(i).write(w, QPoint(val[ 0 ], val[ 1 ]));
-    case QVariant::Size: return mo->property(i).write(w, QSize(val[ 0 ], val[ 1 ]));
+    switch(mo->property(i).typeId()) {
+    case QMetaType::QPoint: return mo->property(i).write(w, QPoint(val[ 0 ], val[ 1 ]));
+    case QMetaType::QSize: return mo->property(i).write(w, QSize(val[ 0 ], val[ 1 ]));
     default: return false;
     }
   }
@@ -221,9 +227,9 @@ ___bool qt_setpointfproperty(QWidget *w, char *prop, double *val)
   int i = mo->indexOfProperty(prop);
   if(i == -1) return 0;
   else {
-    switch(mo->property(i).type()) {
-    case QVariant::PointF: return mo->property(i).write(w, QPointF(val[ 0 ], val[ 1 ]));
-    case QVariant::SizeF: return mo->property(i).write(w, QSizeF(val[ 0 ], val[ 1 ]));
+    switch(mo->property(i).typeId()) {
+    case QMetaType::QPointF: return mo->property(i).write(w, QPointF(val[ 0 ], val[ 1 ]));
+    case QMetaType::QSizeF: return mo->property(i).write(w, QSizeF(val[ 0 ], val[ 1 ]));
     default: return false;
     }
   }
@@ -373,22 +379,22 @@ int qt_propertytype(qtwidget w, char *prop)
 
   if(i == -1) return 0;
   else {
-    switch(mo->property(i).type()) {
-    case QVariant::Bool: return 1;
-    case QVariant::Char: return 2;
-    case QVariant::Double: return 3;
-    case QVariant::Int:
-    case QVariant::UInt: return 4;
-    case QVariant::LongLong:
-    case QVariant::ULongLong: return 3;
-    case QVariant::String: return 5;
-    case QVariant::Pixmap: return 6;
-    case QVariant::PointF: return 7;
-    case QVariant::RectF: return 8;
-    case QVariant::SizeF: return 9;
-    case QVariant::Point: return 10;
-    case QVariant::Size: return 11;
-    case QVariant::Rect: return 12;
+    switch(mo->property(i).typeId()) {
+    case QMetaType::Bool: return 1;
+    case QMetaType::Char: return 2;
+    case QMetaType::Double: return 3;
+    case QMetaType::Int:
+    case QMetaType::UInt: return 4;
+    case QMetaType::LongLong:
+    case QMetaType::ULongLong: return 3;
+    case QMetaType::QString: return 5;
+    case QMetaType::QPixmap: return 6;
+    case QMetaType::QPointF: return 7;
+    case QMetaType::QRectF: return 8;
+    case QMetaType::QSizeF: return 9;
+    case QMetaType::QPoint: return 10;
+    case QMetaType::QSize: return 11;
+    case QMetaType::QRect: return 12;
     default: return 0;
     }
   }
@@ -396,7 +402,7 @@ int qt_propertytype(qtwidget w, char *prop)
 
 
 const char *qt_classname(qtobject w) { return w->metaObject()->className(); }
-qtwidget qt_gl(char *name, qtwidget parent, C_word proc) { return new GLWidget(name, parent, proc); }
+qtwidget qt_gl(char *name, qtwidget parent, C_word proc) { return new OpenGLWidget(name, parent, proc); }
 void qt_update(qtwidget w) { w->update(); }
 
 
@@ -425,7 +431,11 @@ char *qt_listwidgetitem(qtwidget w, int i) {
   return qstrdata(((QListWidget *)w)->item(i)->text());
 }
 
-qtsound qt_sound(char *filename) { return new QSound(filename); }
+qtsound qt_sound(char *filename) {
+  QSoundEffect* sound = new QSoundEffect();
+  sound->setSource(QUrl::fromLocalFile(filename));
+  return sound;
+}
 void qt_play(qtsound s) { s->play(); }