diff --git a/kmail/filehtmlwriter.cpp b/kmail/filehtmlwriter.cpp
index abad6420..8c74ebb6 100644
--- a/kmail/filehtmlwriter.cpp
+++ b/kmail/filehtmlwriter.cpp
@@ -96,7 +96,7 @@ namespace KMail {
     if ( !mFile.open( IO_WriteOnly ) )
       kdWarning( 5006 ) << "FileHtmlWriter: Cannot open file " << mFile.name() << endl;
     else
-      mStream.setDevice( &TQT_TQIODEVICE_OBJECT(mFile) );
+      mStream.setDevice( &mFile );
   }
 
   void FileHtmlWriter::embedPart( const TQCString & contentId, const TQString & url ) {
diff --git a/kmail/kmcomposewin.cpp b/kmail/kmcomposewin.cpp
index 9125f56f..86358906 100644
--- a/kmail/kmcomposewin.cpp
+++ b/kmail/kmcomposewin.cpp
@@ -3304,7 +3304,7 @@ void KMComposeWin::compressAttach( int idx )
   msgPart = mAtmList.at( i );
   TQByteArray array;
   TQBuffer dev( array );
-  KZip zip( &TQT_TQIODEVICE_OBJECT(dev) );
+  KZip zip( &dev );
   TQByteArray decoded = msgPart->bodyDecodedBinary();
   if ( ! zip.open( IO_WriteOnly ) ) {
     KMessageBox::sorry(0, i18n("KMail could not compress the file.") );
@@ -3383,7 +3383,7 @@ void KMComposeWin::uncompressAttach( int idx )
   msgPart = mAtmList.at( i );
 
   TQBuffer dev( msgPart->bodyDecodedBinary() );
-  KZip zip( &TQT_TQIODEVICE_OBJECT(dev) );
+  KZip zip( &dev );
   TQByteArray decoded;
 
   decoded = msgPart->bodyDecodedBinary();
diff --git a/ktnef/gui/attachpropertydialog.cpp b/ktnef/gui/attachpropertydialog.cpp
index 73b20871..f8d8ce12 100644
--- a/ktnef/gui/attachpropertydialog.cpp
+++ b/ktnef/gui/attachpropertydialog.cpp
@@ -178,7 +178,7 @@ TQPixmap loadRenderingPixmap( KTNEFPropertySet *pSet, const TQColor& bgColor )
 			{
 				pix.resize( w, h );
 				pix.fill( bgColor );
-				wmfLoader.paint( &TQT_TQPAINTDEVICE_OBJECT(pix) );
+				wmfLoader.paint( &pix );
 			}
 			wmfBuffer.close();
 		}
diff --git a/ktnef/lib/ktnefmessage.cpp b/ktnef/lib/ktnefmessage.cpp
index 27f98606..320ce411 100644
--- a/ktnef/lib/ktnefmessage.cpp
+++ b/ktnef/lib/ktnefmessage.cpp
@@ -76,7 +76,7 @@ TQString KTNEFMessage::rtfString()
 		TQByteArray rtf;
 		TQBuffer input( prop.asByteArray() ), output( rtf );
 		if ( input.open( IO_ReadOnly ) && output.open( IO_WriteOnly ) )
-			lzfu_decompress( &TQT_TQIODEVICE_OBJECT(input), &TQT_TQIODEVICE_OBJECT(output) );
+			lzfu_decompress( &input, &output );
 		return TQString( rtf );
 	}
 }
diff --git a/libkcal/incidenceformatter.cpp b/libkcal/incidenceformatter.cpp
index da3a7aae..785a681b 100644
--- a/libkcal/incidenceformatter.cpp
+++ b/libkcal/incidenceformatter.cpp
@@ -2837,7 +2837,7 @@ TQString IncidenceFormatter::msTNEFToVPart( const TQByteArray& tnef )
   ICalFormat calFormat;
   Event* event = new Event();
 
-  if( parser.openDevice( &TQT_TQIODEVICE_OBJECT(buf) ) ) {
+  if( parser.openDevice( &buf ) ) {
     KTNEFMessage* tnefMsg = parser.message();
     //TQMap<int,KTNEFProperty*> props = parser.message()->properties();
 
diff --git a/libtdepim/kdateedit.cpp b/libtdepim/kdateedit.cpp
index dd6b4e48..392e53ee 100644
--- a/libtdepim/kdateedit.cpp
+++ b/libtdepim/kdateedit.cpp
@@ -286,7 +286,7 @@ bool KDateEdit::eventFilter( TQObject *object, TQEvent *event )
       case TQEvent::MouseButtonDblClick:
       case TQEvent::MouseButtonPress: {
         TQMouseEvent *mouseEvent = (TQMouseEvent*)event;
-        if ( !TQT_TQRECT_OBJECT(mPopup->rect()).contains( mouseEvent->pos() ) ) {
+        if ( !mPopup->rect().contains( mouseEvent->pos() ) ) {
           TQPoint globalPos = mPopup->mapToGlobal( mouseEvent->pos() );
           if ( TQApplication::widgetAt( globalPos, true ) == this ) {
             // The date picker is being closed by a click on the