diff --git a/chalk/ui/kis_previewwidget.cpp b/chalk/ui/kis_previewwidget.cpp
index a95c4920a..f2fe0bb7a 100644
--- a/chalk/ui/kis_previewwidget.cpp
+++ b/chalk/ui/kis_previewwidget.cpp
@@ -335,7 +335,7 @@ void KisPreviewWidget::runFilterHelper() {
         m_scaledImage = new KisImage(*m_origDevice->image());
         if(!m_origDevice->parentLayer()) return;
         TQString layerName = m_origDevice->parentLayer()->name();
-        KisPaintLayerSP pl = ::tqqt_cast<KisPaintLayer*>(m_scaledImage->findLayer(layerName));
+        KisPaintLayerSP pl = ::tqt_cast<KisPaintLayer*>(m_scaledImage->findLayer(layerName));
         if(!pl) return;
         scaledDevice = pl->paintDevice();
         
diff --git a/filters/kspread/csv/csvexport.cpp b/filters/kspread/csv/csvexport.cpp
index ceeb8b5ec..e5d7a045e 100644
--- a/filters/kspread/csv/csvexport.cpp
+++ b/filters/kspread/csv/csvexport.cpp
@@ -126,7 +126,7 @@ KoFilter::ConversionStatus CSVExport::convert( const TQCString & from, const TQC
   if ( !document )
     return KoFilter::StupidError;
 
-  if ( !::tqqt_cast<const KSpread::Doc *>( document ) )
+  if ( !::tqt_cast<const KSpread::Doc *>( document ) )
   {
     kdWarning(30501) << "document isn't a KSpread::Doc but a " << document->className() << endl;
     return KoFilter::NotImplemented;
diff --git a/filters/kspread/csv/csvimport.cpp b/filters/kspread/csv/csvimport.cpp
index 72cadfa2b..7b6f740c0 100644
--- a/filters/kspread/csv/csvimport.cpp
+++ b/filters/kspread/csv/csvimport.cpp
@@ -67,7 +67,7 @@ KoFilter::ConversionStatus CSVFilter::convert( const TQCString& from, const TQCS
 
     kdDebug(30501) << "here we go... " << document->className() << endl;
 
-    if ( !::tqqt_cast<const KSpread::Doc *>( document ) )
+    if ( !::tqt_cast<const KSpread::Doc *>( document ) )
     {
       kdWarning(30501) << "document isn't a KSpread::Doc but a " << document->className() << endl;
         return KoFilter::NotImplemented;
diff --git a/filters/kspread/gnumeric/gnumericexport.cpp b/filters/kspread/gnumeric/gnumericexport.cpp
index 77926298d..4e88e6be5 100644
--- a/filters/kspread/gnumeric/gnumericexport.cpp
+++ b/filters/kspread/gnumeric/gnumericexport.cpp
@@ -949,7 +949,7 @@ KoFilter::ConversionStatus GNUMERICExport::convert( const TQCString& from, const
     if (!document)
         return KoFilter::StupidError;
 
-    if ( !::tqqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
+    if ( !::tqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
     {
       kdWarning(30521) << "document isn't a KSpread::Doc but a " << document->className() << endl;
         return KoFilter::NotImplemented;
diff --git a/filters/kspread/gnumeric/gnumericimport.cpp b/filters/kspread/gnumeric/gnumericimport.cpp
index d763fdef4..511cfb0ba 100644
--- a/filters/kspread/gnumeric/gnumericimport.cpp
+++ b/filters/kspread/gnumeric/gnumericimport.cpp
@@ -1835,7 +1835,7 @@ KoFilter::ConversionStatus GNUMERICFilter::convert( const TQCString & from, cons
 
     kdDebug(30521) << "here we go... " << document->className() << endl;
 
-    if ( !::tqqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
+    if ( !::tqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
     {
         kdWarning(30521) << "document isn't a KSpread::Doc but a " << document->className() << endl;
         return KoFilter::NotImplemented;
diff --git a/filters/kspread/html/htmlexport.cpp b/filters/kspread/html/htmlexport.cpp
index f680207e4..68f4081cf 100644
--- a/filters/kspread/html/htmlexport.cpp
+++ b/filters/kspread/html/htmlexport.cpp
@@ -89,7 +89,7 @@ KoFilter::ConversionStatus HTMLExport::convert( const TQCString& from, const TQC
     if ( !document )
       return KoFilter::StupidError;
 
-    if( !::tqqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
+    if( !::tqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
     {
       kdWarning(30501) << "document isn't a KSpread::Doc but a " << document->className() << endl;
       return KoFilter::NotImplemented;
diff --git a/filters/kspread/kexi/kspread_kexiimport.cpp b/filters/kspread/kexi/kspread_kexiimport.cpp
index 6100dabe3..090f05ce1 100644
--- a/filters/kspread/kexi/kspread_kexiimport.cpp
+++ b/filters/kspread/kexi/kspread_kexiimport.cpp
@@ -99,7 +99,7 @@ KoFilter::ConversionStatus KSpreadKexiImport::convert( const TQCString& from, co
 
     kdDebug() << "here we go... " << document->className() << endl;
 
-    if ( !::tqqt_cast<const KSpread::Doc *>( document ) )
+    if ( !::tqt_cast<const KSpread::Doc *>( document ) )
     {
         kdWarning() << "document isn't a KSpread::Doc but a " << document->className() << endl;
         return KoFilter::NotImplemented;
diff --git a/filters/kspread/libkspreadexport/KSpreadLeader.cpp b/filters/kspread/libkspreadexport/KSpreadLeader.cpp
index 8e300c7d1..3e8441b0c 100644
--- a/filters/kspread/libkspreadexport/KSpreadLeader.cpp
+++ b/filters/kspread/libkspreadexport/KSpreadLeader.cpp
@@ -74,7 +74,7 @@ KoFilter::ConversionStatus Leader::convert() {
 		kdWarning(30508) << "the KSpreadDoc is NULL!" << endl;
 		return KoFilter::StupidError;
 	}
-	if ( !::tqqt_cast<const KSpread::Doc *>( document ) ) {
+	if ( !::tqt_cast<const KSpread::Doc *>( document ) ) {
 		kdWarning(30508) << "the document is not a KSpreadDoc!" << endl;
 		return KoFilter::StupidError;
 	}
diff --git a/filters/kspread/opencalc/opencalcexport.cpp b/filters/kspread/opencalc/opencalcexport.cpp
index 8f8018c53..c0fe3c2e0 100644
--- a/filters/kspread/opencalc/opencalcexport.cpp
+++ b/filters/kspread/opencalc/opencalcexport.cpp
@@ -104,7 +104,7 @@ KoFilter::ConversionStatus OpenCalcExport::convert( const TQCString & from,
   if ( !document )
     return KoFilter::StupidError;
 
-  if (  !::tqqt_cast<const KSpread::Doc *>( document ) )
+  if (  !::tqt_cast<const KSpread::Doc *>( document ) )
   {
     kdWarning(30518) << "document isn't a KSpread::Doc but a "
                      << document->className() << endl;
diff --git a/filters/kspread/opencalc/opencalcimport.cpp b/filters/kspread/opencalc/opencalcimport.cpp
index 2ccf31739..25c0d94aa 100644
--- a/filters/kspread/opencalc/opencalcimport.cpp
+++ b/filters/kspread/opencalc/opencalcimport.cpp
@@ -2743,7 +2743,7 @@ KoFilter::ConversionStatus OpenCalcImport::convert( TQCString const & from, TQCS
   if ( !document )
     return KoFilter::StupidError;
 
-  if (  !::tqqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
+  if (  !::tqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
   {
     kdWarning(30518) << "document isn't a KSpread::Doc but a " << document->className() << endl;
     return KoFilter::NotImplemented;
diff --git a/filters/kspread/qpro/qproimport.cpp b/filters/kspread/qpro/qproimport.cpp
index e282a7698..ea989f9a6 100644
--- a/filters/kspread/qpro/qproimport.cpp
+++ b/filters/kspread/qpro/qproimport.cpp
@@ -104,7 +104,7 @@ KoFilter::ConversionStatus QpImport::convert( const TQCString& from, const TQCSt
 
     kdDebug(30523) << "here we go... " << document->className() << endl;
 
-    if( !::tqqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
+    if( !::tqt_cast<const KSpread::Doc *>( document ) )  // it's safer that way :)
     {
         kdWarning(30501) << "document isn't a KSpread::Doc but a " << document->className() << endl;
         return KoFilter::NotImplemented;
diff --git a/kivio/kiviopart/stencilbardockmanager.cpp b/kivio/kiviopart/stencilbardockmanager.cpp
index 4cce5b20b..e0aef5f8b 100644
--- a/kivio/kiviopart/stencilbardockmanager.cpp
+++ b/kivio/kiviopart/stencilbardockmanager.cpp
@@ -81,7 +81,7 @@ void StencilBarDockManager::insertStencilSet( TQWidget* w, const TQString& capti
         TQPtrList<TQDockWindow> dockList = m_pView->mainWindow()->dockWindows(TQt::DockLeft);
         
         for(TQDockWindow* dock = dockList.first(); dock; dock = dockList.next()) {
-          if(::tqqt_cast<KivioStackBar*>(dock) && (static_cast<KivioStackBar*>(dock)->view() == m_pView)) {
+          if(::tqt_cast<KivioStackBar*>(dock) && (static_cast<KivioStackBar*>(dock)->view() == m_pView)) {
             bar = static_cast<KivioStackBar*>(dock);
             break;
           }
@@ -95,7 +95,7 @@ void StencilBarDockManager::insertStencilSet( TQWidget* w, const TQString& capti
         TQPtrList<TQDockWindow> dockList = m_pView->mainWindow()->dockWindows(TQt::DockTop);
         
         for(TQDockWindow* dock = dockList.first(); dock; dock = dockList.next()) {
-          if(::tqqt_cast<KivioStackBar*>(dock) && (static_cast<KivioStackBar*>(dock)->view() == m_pView)) {
+          if(::tqt_cast<KivioStackBar*>(dock) && (static_cast<KivioStackBar*>(dock)->view() == m_pView)) {
             bar = static_cast<KivioStackBar*>(dock);
             break;
           }
@@ -109,7 +109,7 @@ void StencilBarDockManager::insertStencilSet( TQWidget* w, const TQString& capti
         TQPtrList<TQDockWindow> dockList = m_pView->mainWindow()->dockWindows(TQt::DockRight);
         
         for(TQDockWindow* dock = dockList.first(); dock; dock = dockList.next()) {
-          if(::tqqt_cast<KivioStackBar*>(dock) && (static_cast<KivioStackBar*>(dock)->view() == m_pView)) {
+          if(::tqt_cast<KivioStackBar*>(dock) && (static_cast<KivioStackBar*>(dock)->view() == m_pView)) {
             bar = static_cast<KivioStackBar*>(dock);
             break;
           }
@@ -123,7 +123,7 @@ void StencilBarDockManager::insertStencilSet( TQWidget* w, const TQString& capti
         TQPtrList<TQDockWindow> dockList = m_pView->mainWindow()->dockWindows(TQt::DockBottom);
         
         for(TQDockWindow* dock = dockList.first(); dock; dock = dockList.next()) {
-          if(::tqqt_cast<KivioStackBar*>(dock) && (static_cast<KivioStackBar*>(dock)->view() == m_pView)) {
+          if(::tqt_cast<KivioStackBar*>(dock) && (static_cast<KivioStackBar*>(dock)->view() == m_pView)) {
             bar = static_cast<KivioStackBar*>(dock);
             break;
           }
diff --git a/kivio/kiviopart/tools/mousetoolaction.cpp b/kivio/kiviopart/tools/mousetoolaction.cpp
index 38a8af695..51b2481e6 100644
--- a/kivio/kiviopart/tools/mousetoolaction.cpp
+++ b/kivio/kiviopart/tools/mousetoolaction.cpp
@@ -84,7 +84,7 @@ int MouseToolAction::plug(TQWidget* widget, int index)
     return usedIndex;
   }
   
-  if(::tqqt_cast<TDEToolBar*>(widget)) {
+  if(::tqt_cast<TDEToolBar*>(widget)) {
     TDEToolBar* toolBar = static_cast<TDEToolBar*>(widget);
     TDEToolBarButton* button = toolBar->getButton(itemId(usedIndex));
     connect(button, TQT_SIGNAL(doubleClicked(int)), this, TQT_SIGNAL(doubleClicked()));
diff --git a/kspread/kspread_object.cpp b/kspread/kspread_object.cpp
index 6f397b527..ad699e4ee 100644
--- a/kspread/kspread_object.cpp
+++ b/kspread/kspread_object.cpp
@@ -679,7 +679,7 @@ bool EmbeddedChart::loadDocument( KoStore* _store )
 KoChart::Part* EmbeddedChart::chart()
 {
     // Returns 0 when the chart couldn't be loaded and we get KoUnavailPart instead.
-    return ::tqqt_cast<KoChart::Part *>( m_embeddedObject->document() );
+    return ::tqt_cast<KoChart::Part *>( m_embeddedObject->document() );
 }
 
 /**********************************************************
diff --git a/kword/KWPartFrameSet.cpp b/kword/KWPartFrameSet.cpp
index d347871a8..255f084ed 100644
--- a/kword/KWPartFrameSet.cpp
+++ b/kword/KWPartFrameSet.cpp
@@ -360,7 +360,7 @@ KoDocument* KWDocumentChild::hitTest( const TQPoint& p, const TQWMatrix& _matrix
 
     // Only activate when it's already selected, and when not clicking on the border.
     // KWFrameView and the part frame policy have that logic already.
-    KWView* kwView = ::tqqt_cast<KWView *>( parentDocument()->hitTestView() );
+    KWView* kwView = ::tqt_cast<KWView *>( parentDocument()->hitTestView() );
     Q_ASSERT( kwView );
     if ( kwView ) {
         KWFrame* frame = m_partFrameSet->frame(0);
diff --git a/lib/kofficecore/KoMainWindow.cpp b/lib/kofficecore/KoMainWindow.cpp
index 3641f58c5..a16755140 100644
--- a/lib/kofficecore/KoMainWindow.cpp
+++ b/lib/kofficecore/KoMainWindow.cpp
@@ -76,7 +76,7 @@ public:
   }
   virtual bool eventFilter( TQObject *obj, TQEvent *ev )
   {
-    if ( !obj->isWidgetType() || ::tqqt_cast<KoFrame *>( obj ) )
+    if ( !obj->isWidgetType() || ::tqt_cast<KoFrame *>( obj ) )
       return false;
     return KParts::PartManager::eventFilter( obj, ev );
   }
diff --git a/lib/kofficecore/kkbdaccessextensions.cpp b/lib/kofficecore/kkbdaccessextensions.cpp
index 646606d05..3ef20eb52 100644
--- a/lib/kofficecore/kkbdaccessextensions.cpp
+++ b/lib/kofficecore/kkbdaccessextensions.cpp
@@ -279,11 +279,11 @@ TQWidgetList* KKbdAccessExtensions::getAllPanels()
     TQWidget* widget = allWidgets->first();
     while (widget) {
         if (widget->isVisible()) {
-            if (::tqqt_cast<TQSplitter*>( widget )) {
+            if (::tqt_cast<TQSplitter*>( widget )) {
                 // Only size TQSplitters with at least two handles (there is always one hidden).
                 if (dynamic_cast<TQSplitter *>(widget)->sizes().count() >= 2)
                     allPanels->append(widget);
-            } else if (::tqqt_cast<TQDockWindow*>( widget )) {
+            } else if (::tqt_cast<TQDockWindow*>( widget )) {
                 if (dynamic_cast<TQDockWindow *>(widget)->isResizeEnabled()) {
                     // kdDebug() << "KKbdAccessExtensions::getAllPanels: TQDockWindow = " << widget->name() << endl;
                     allPanels->append(widget);
@@ -303,7 +303,7 @@ void KKbdAccessExtensions::nextHandle()
     if (panel) {
         bool advance = true;
         d->handleNdx++;
-        if (::tqqt_cast<TQSplitter*>( panel ))
+        if (::tqt_cast<TQSplitter*>( panel ))
             advance = (d->handleNdx >= dynamic_cast<TQSplitter *>(panel)->sizes().count());
         else
             // Undocked windows have only one "handle" (center).
@@ -345,7 +345,7 @@ void KKbdAccessExtensions::prevHandle()
             if (allWidgets->current()) panel = allWidgets->prev();
             delete allWidgets;
             if (panel) {
-                if (::tqqt_cast<TQSplitter*>( panel ))
+                if (::tqt_cast<TQSplitter*>( panel ))
                     d->handleNdx = dynamic_cast<TQSplitter *>(panel)->sizes().count() - 1;
                 else {
                     if (dynamic_cast<TQDockWindow *>(panel)->area())
@@ -361,7 +361,7 @@ void KKbdAccessExtensions::prevHandle()
         panel = allWidgets->last();
         delete allWidgets;
         if (panel) {
-            if (::tqqt_cast<TQSplitter*>( panel ))
+            if (::tqt_cast<TQSplitter*>( panel ))
                 d->handleNdx = dynamic_cast<TQSplitter *>(panel)->sizes().count() - 1;
             else {
                 if (dynamic_cast<TQDockWindow *>(panel)->area())
@@ -391,7 +391,7 @@ void KKbdAccessExtensions::showIcon()
     if (!d->panel) return;
     TQPoint p;
     // kdDebug() << "KKbdAccessExtensions::showIcon: topLevelWidget = " << d->panel->topLevelWidget()->name() << endl;
-    if (::tqqt_cast<TQSplitter*>( d->panel )) {
+    if (::tqt_cast<TQSplitter*>( d->panel )) {
         TQSplitter* splitter = dynamic_cast<TQSplitter *>(d->panel);
         int handleNdx = d->handleNdx - 1;
         TQValueList<int> sizes = splitter->sizes();
@@ -461,7 +461,7 @@ void KKbdAccessExtensions::resizePanel(int dx, int dy, int state)
     int adj = dx + dy;
     if (adj == 0) return;
     // kdDebug() << "KKbdAccessExtensions::resizePanel: panel = " << d->panel->name() << endl;
-    if (::tqqt_cast<TQSplitter*>( d->panel )) {
+    if (::tqt_cast<TQSplitter*>( d->panel )) {
         TQSplitter* splitter = dynamic_cast<TQSplitter *>(d->panel);
         int handleNdx = d->handleNdx - 1;
         TQValueList<int> sizes = splitter->sizes();
@@ -534,7 +534,7 @@ void KKbdAccessExtensions::resizePanelFromKey(int key, int state)
     if (adj != 0)
         resizePanel(dx, dy, state);
     else {
-        if (key == TQt::Key_Enter && ::tqqt_cast<TQDockWindow*>( d->panel )) {
+        if (key == TQt::Key_Enter && ::tqt_cast<TQDockWindow*>( d->panel )) {
             TQDockWindow* dockWindow = dynamic_cast<TQDockWindow *>(d->panel);
             if (dockWindow->area())
                 dockWindow->undock();