Add more "override" markers.

bitmap2component/bitmap2cmp_gui.cpp

@@ -670,7 +670,7 @@ static struct IFACE : public KIFACE_I
 {
     bool OnKifaceStart( PGM_BASE* aProgram, int aCtlBits ) override;
 
-    wxWindow* CreateWindow( wxWindow* aParent, int aClassId, KIWAY* aKiway, int aCtlBits = 0 )
+    wxWindow* CreateWindow( wxWindow* aParent, int aClassId, KIWAY* aKiway, int aCtlBits = 0 ) override
     {
         return new BM2CMP_FRAME( aKiway, aParent );
     }
@@ -686,7 +686,7 @@ static struct IFACE : public KIFACE_I
      *
      * @return void* - and must be cast into the know type.
      */
-    void* IfaceOrAddress( int aDataId )
+    void* IfaceOrAddress( int aDataId ) override
     {
         return NULL;
     }