3 files changed, 5 insertions, 9 deletions
diff --git a/vcl/source/gdi/impvect.cxx b/vcl/source/gdi/impvect.cxx
index 7e3c7dd2a791..33dfccc3436d 100644
--- a/vcl/source/gdi/impvect.cxx
+++ b/vcl/source/gdi/impvect.cxx
@@ -42,7 +42,7 @@
 #define VECT_MAP( _def_pIn, _def_pOut, _def_nVal )  _def_pOut[_def_nVal]=(_def_pIn[_def_nVal]=((_def_nVal)*4L)+1L)+5L;
 #define BACK_MAP( _def_nVal )                       ((((_def_nVal)+2)>>2)-1)
 #define VECT_PROGRESS( _def_pProgress, _def_nVal ) \
-  if(_def_pProgress && _def_pProgress->IsSet())      \
+  if(_def_pProgress)      \
       (_def_pProgress->Call(_def_nVal));
 
 class ImplVectMap;
diff --git a/vcl/source/window/split.cxx b/vcl/source/window/split.cxx
index af33e4f5d98c..115ec625e159 100644
--- a/vcl/source/window/split.cxx
+++ b/vcl/source/window/split.cxx
@@ -450,8 +450,7 @@ void Splitter::Split()
 
 void Splitter::EndSplit()
 {
-    if ( maEndSplitHdl.IsSet() )
-        maEndSplitHdl.Call( this );
+    maEndSplitHdl.Call( this );
 }
 
 void Splitter::Splitting( Point& /* rSplitPos */ )
diff --git a/vcl/source/window/toolbox.cxx b/vcl/source/window/toolbox.cxx
index 84a28c84c4e4..8b4308a9503a 100644
--- a/vcl/source/window/toolbox.cxx
+++ b/vcl/source/window/toolbox.cxx
@@ -4421,8 +4421,7 @@ bool ToolBox::Notify( NotifyEvent& rNEvt )
 
 void ToolBox::Command( const CommandEvent& rCEvt )
 {
-    if ( maCommandHandler.IsSet() )
-        maCommandHandler.Call( &rCEvt );
+    maCommandHandler.Call( &rCEvt );
 
     // depict StartDrag on MouseButton/Left/Alt
     if ( (rCEvt.GetCommand() == CommandEventId::StartDrag) && rCEvt.IsMouseEvent() &&
@@ -4515,8 +4514,7 @@ void ToolBox::StateChanged( StateChangedType nType )
         Invalidate();
     }
 
-    if ( maStateChangedHandler.IsSet() )
-        maStateChangedHandler.Call( &nType );
+    maStateChangedHandler.Call( &nType );
 }
 
 void ToolBox::DataChanged( const DataChangedEvent& rDCEvt )
@@ -4535,8 +4533,7 @@ void ToolBox::DataChanged( const DataChangedEvent& rDCEvt )
         Invalidate();
     }
 
-    if ( maDataChangedHandler.IsSet() )
-        maDataChangedHandler.Call( &rDCEvt );
+    maDataChangedHandler.Call( &rDCEvt );
 }
 
 bool ToolBox::PrepareToggleFloatingMode()