diff --git a/kstars/kstars/fovdialog.cpp b/kstars/kstars/fovdialog.cpp
index 2e1722e9..19194474 100644
--- a/kstars/kstars/fovdialog.cpp
+++ b/kstars/kstars/fovdialog.cpp
@@ -237,15 +237,15 @@ void NewFOV::paintEvent( TQPaintEvent * ) {
 
 void NewFOV::slotComputeFOV() {
 	//DEBUG
-	kdDebug() << ":" << TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() << ":" << endl;
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "ComputeEyeFOV" ) ) kdDebug() << "A" << endl;
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "ComputeEyeFOV" ) && ui->TLength1->value() > 0.0 ) kdDebug() << "B" << endl;
+	kdDebug() << ":" << sender()->name() << ":" << endl;
+	if ( sender()->name() == TQString( "ComputeEyeFOV" ) ) kdDebug() << "A" << endl;
+	if ( sender()->name() == TQString( "ComputeEyeFOV" ) && ui->TLength1->value() > 0.0 ) kdDebug() << "B" << endl;
 
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "ComputeEyeFOV" ) && ui->TLength1->value() > 0.0 )
+	if ( sender()->name() == TQString( "ComputeEyeFOV" ) && ui->TLength1->value() > 0.0 )
 		ui->FOVEdit->setText( TDEGlobal::locale()->formatNumber( ui->EyeFOV->value() * ui->EyeLength->value() / ui->TLength1->value() ) );
-	else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "ComputeCameraFOV" ) && ui->TLength2->value() > 0.0 )
+	else if ( sender()->name() == TQString( "ComputeCameraFOV" ) && ui->TLength2->value() > 0.0 )
 		ui->FOVEdit->setText( TDEGlobal::locale()->formatNumber( ui->ChipSize->value() * 3438.0 / ui->TLength2->value() ) );
-	else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "ComputeHPBW" ) && ui->RTDiameter->value() > 0.0 && ui->WaveLength->value() > 0.0 ) {
+	else if ( sender()->name() == TQString( "ComputeHPBW" ) && ui->RTDiameter->value() > 0.0 && ui->WaveLength->value() > 0.0 ) {
 		ui->FOVEdit->setText( TDEGlobal::locale()->formatNumber( 34.34 * 1.2 * ui->WaveLength->value() / ui->RTDiameter->value() ) );
 		// Beam width for an antenna is usually a circle on the sky.
 		ui->ShapeBox->setCurrentItem(4);
diff --git a/kstars/kstars/kstarsactions.cpp b/kstars/kstars/kstarsactions.cpp
index 81ac63ba..900f586e 100644
--- a/kstars/kstars/kstarsactions.cpp
+++ b/kstars/kstars/kstarsactions.cpp
@@ -93,23 +93,23 @@
 
 void KStars::slotViewToolBar() {
 
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_stars" ) ) {
+	if ( sender()->name() == TQString( "show_stars" ) ) {
 		Options::setShowStars( !Options::showStars() );
-	} else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_deepsky" ) ) {
+	} else if ( sender()->name() == TQString( "show_deepsky" ) ) {
 		Options::setShowDeepSky( ! Options::showDeepSky() );
-	} else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_planets" ) ) {
+	} else if ( sender()->name() == TQString( "show_planets" ) ) {
 		Options::setShowPlanets( ! Options::showPlanets() );
-	} else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_clines" ) ) {
+	} else if ( sender()->name() == TQString( "show_clines" ) ) {
 		Options::setShowCLines( !Options::showCLines() );
-	} else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_cnames" ) ) {
+	} else if ( sender()->name() == TQString( "show_cnames" ) ) {
 		Options::setShowCNames( !Options::showCNames() );
-	} else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_cbounds" ) ) {
+	} else if ( sender()->name() == TQString( "show_cbounds" ) ) {
 		Options::setShowCBounds( !Options::showCBounds() );
-	} else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_mw" ) ) {
+	} else if ( sender()->name() == TQString( "show_mw" ) ) {
 		Options::setShowMilkyWay( !Options::showMilkyWay() );
-	} else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_grid" ) ) {
+	} else if ( sender()->name() == TQString( "show_grid" ) ) {
 		Options::setShowGrid( !Options::showGrid() );
-	} else if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_horizon" ) ) {
+	} else if ( sender()->name() == TQString( "show_horizon" ) ) {
 		Options::setShowGround( !Options::showGround() );
 	}
 
@@ -623,7 +623,7 @@ void KStars::slotToggleTimer() {
 
 //Focus
 void KStars::slotPointFocus() {
-	TQString sentFrom( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() );
+	TQString sentFrom( sender()->name() );
 
 	if ( sentFrom == "zenith" )
 		map()->invokeKey( KKey( "Z" ).keyCodeQt() );
@@ -813,12 +813,12 @@ void KStars::slotCoordSys() {
 //Settings Menu:
 void KStars::slotColorScheme() {
 	//use mid(3) to exclude the leading "cs_" prefix from the action name
-	TQString filename = TQString( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() ).mid(3) + ".colors";
+	TQString filename = TQString( sender()->name() ).mid(3) + ".colors";
 	loadColorScheme( filename );
 }
 
 void KStars::slotTargetSymbol() {
-	TQString symbolName( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() );
+	TQString symbolName( sender()->name() );
 	FOV f( symbolName ); //read data from fov.dat
 
 	Options::setFOVName( f.name() );
@@ -955,24 +955,24 @@ void KStars::slotClearAllTrails() {
 //toggle display of GUI Items on/off
 void KStars::slotShowGUIItem( bool show ) {
 //Toolbars
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_mainToolBar" ) ) {
+	if ( sender()->name() == TQString( "show_mainToolBar" ) ) {
 		Options::setShowMainToolBar( show );
 		if ( show ) toolBar( "mainToolBar" )->show();
 		else toolBar( "mainToolBar" )->hide();
 	}
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_viewToolBar" ) ) {
+	if ( sender()->name() == TQString( "show_viewToolBar" ) ) {
 		Options::setShowViewToolBar( show );
 		if ( show ) toolBar( "viewToolBar" )->show();
 		else toolBar( "viewToolBar" )->hide();
 	}
 
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_statusBar" ) ) {
+	if ( sender()->name() == TQString( "show_statusBar" ) ) {
 		Options::setShowStatusBar( show );
 		if ( show ) statusBar()->show();
 		else  statusBar()->hide();
 	}
 
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_sbAzAlt" ) ) {
+	if ( sender()->name() == TQString( "show_sbAzAlt" ) ) {
 		Options::setShowAltAzField( show );
 		if ( show ) {
 			//To preserve the order (AzAlt before RADec), we have to remove
@@ -994,7 +994,7 @@ void KStars::slotShowGUIItem( bool show ) {
 		}
 	}
 
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_sbRADec" ) ) {
+	if ( sender()->name() == TQString( "show_sbRADec" ) ) {
 		Options::setShowRADecField( show );
 		if ( show ) {
 			TQString s = "000d 00m 00s,   +00d 00\' 00\""; //only need this to set the width
@@ -1008,13 +1008,13 @@ void KStars::slotShowGUIItem( bool show ) {
 
 //InfoBoxes: we only change options here; these are also connected to slots in
 //InfoBoxes that actually toggle the display.
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_boxes" ) )
+	if ( sender()->name() == TQString( "show_boxes" ) )
 		Options::setShowInfoBoxes( show );
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_time_box" ) )
+	if ( sender()->name() == TQString( "show_time_box" ) )
 		Options::setShowTimeBox( show );
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_location_box" ) )
+	if ( sender()->name() == TQString( "show_location_box" ) )
 		Options::setShowGeoBox( show );
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "show_focus_box" ) )
+	if ( sender()->name() == TQString( "show_focus_box" ) )
 		Options::setShowFocusBox( show );
 }
 
diff --git a/kstars/kstars/opscatalog.cpp b/kstars/kstars/opscatalog.cpp
index 71909872..a9fda7ac 100644
--- a/kstars/kstars/opscatalog.cpp
+++ b/kstars/kstars/opscatalog.cpp
@@ -82,7 +82,7 @@ OpsCatalog::~OpsCatalog() {}
 
 void OpsCatalog::updateDisplay() {
 	//Modify display according to settings in the CatalogList
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "CatalogList" ) )
+	if ( sender()->name() == TQString( "CatalogList" ) )
 		Options::setShowDeepSky( true );
 
 	Options::setShowMessier( showMessier->isOn() );
diff --git a/kstars/kstars/opssolarsystem.cpp b/kstars/kstars/opssolarsystem.cpp
index 90202a56..688a53c7 100644
--- a/kstars/kstars/opssolarsystem.cpp
+++ b/kstars/kstars/opssolarsystem.cpp
@@ -58,7 +58,7 @@ void OpsSolarSystem::slotCometWidgets( bool on ) {
 
 void OpsSolarSystem::slotSelectPlanets() {
 	bool b=true;
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "showNonePlanets" ) ) b = false;
+	if ( sender()->name() == TQString( "showNonePlanets" ) ) b = false;
 	
 	kcfg_ShowSun->setChecked( b );
 	kcfg_ShowMoon->setChecked( b );
diff --git a/kstars/kstars/tools/altvstime.cpp b/kstars/kstars/tools/altvstime.cpp
index 9a95e188..0df74318 100644
--- a/kstars/kstars/tools/altvstime.cpp
+++ b/kstars/kstars/tools/altvstime.cpp
@@ -307,11 +307,11 @@ void AltVsTime::slotHighlight(void) {
 
 //move input focus to the next logical widget
 void AltVsTime::slotAdvanceFocus(void) {
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "nameBox" ) ) avtUI->addButton->setFocus();
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "raBox" ) ) avtUI->decBox->setFocus();
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "decbox" ) ) avtUI->addButton->setFocus();
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "longBox" ) ) avtUI->latBox->setFocus();
-	if ( TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender()))->name() == TQString( "latBox" ) ) avtUI->updateButton->setFocus();
+	if ( sender()->name() == TQString( "nameBox" ) ) avtUI->addButton->setFocus();
+	if ( sender()->name() == TQString( "raBox" ) ) avtUI->decBox->setFocus();
+	if ( sender()->name() == TQString( "decbox" ) ) avtUI->addButton->setFocus();
+	if ( sender()->name() == TQString( "longBox" ) ) avtUI->latBox->setFocus();
+	if ( sender()->name() == TQString( "latBox" ) ) avtUI->updateButton->setFocus();
 }
 
 void AltVsTime::slotClear(void) {
diff --git a/kvoctrain/kvoctrain/query-dialogs/RandomQueryDlg.cpp b/kvoctrain/kvoctrain/query-dialogs/RandomQueryDlg.cpp
index 6b047be3..819ed2a2 100644
--- a/kvoctrain/kvoctrain/query-dialogs/RandomQueryDlg.cpp
+++ b/kvoctrain/kvoctrain/query-dialogs/RandomQueryDlg.cpp
@@ -486,7 +486,7 @@ void RandomQueryDlg::slotTransChanged(const TQString&)
 {
   mw->verify->setDefault(true);
   bool suggestions = Prefs::suggestions();
-  if ( suggestions && sender() && TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender())) -> isA ("TQComboBox") )
+  if ( suggestions && sender() && sender() -> isA ("TQComboBox") )
   {
     TQLineEdit* edit = ((TQComboBox*) sender()) -> lineEdit();
     resetField (edit);
@@ -497,7 +497,7 @@ void RandomQueryDlg::slotTransChanged(const TQString&)
     else
       mw->status -> clear();
   }
-  else if ( ! suggestions && sender() && TQT_TQOBJECT(const_cast<TQT_BASE_OBJECT_NAME*>(sender())) -> isA ("TQLineEdit") )
+  else if ( ! suggestions && sender() && sender() -> isA ("TQLineEdit") )
     resetField ((TQLineEdit*) sender());
 }
 
diff --git a/kwordquiz/src/kwordquizview.cpp b/kwordquiz/src/kwordquizview.cpp
index 5fbf5be6..6d875c87 100644
--- a/kwordquiz/src/kwordquizview.cpp
+++ b/kwordquiz/src/kwordquizview.cpp
@@ -1051,7 +1051,7 @@ void KWordQuizView::slotCheckedAnswer( int i )
 
 bool KWordQuizView::eventFilter( TQObject * o, TQEvent * e )
 {
-  if (TQT_BASE_OBJECT(o) == TQT_BASE_OBJECT(cellEditor))
+  if (o == cellEditor)
   {
     if ( e->type() == TQEvent::KeyPress )
     {
diff --git a/libtdeedu/extdate/extdatetimeedit.cpp b/libtdeedu/extdate/extdatetimeedit.cpp
index 21e74809..1fe1a22c 100644
--- a/libtdeedu/extdate/extdatetimeedit.cpp
+++ b/libtdeedu/extdate/extdatetimeedit.cpp
@@ -474,7 +474,7 @@ void ExtDateTimeEditor::mousePressEvent( TQMouseEvent *e )
 */
 bool ExtDateTimeEditor::eventFilter( TQObject *o, TQEvent *e )
 {
-    if ( TQT_BASE_OBJECT(o) == TQT_BASE_OBJECT(this) ) {
+    if ( o == this ) {
 	if ( e->type() == TQEvent::KeyPress ) {
 	    TQKeyEvent *ke = (TQKeyEvent*)e;
 	    switch ( ke->key() ) {