WIP: enterEvent has a different signature in Qt6

src/laybasic/laybasic/layViewObject.cc

@@ -684,7 +684,11 @@ END_PROTECTED
 }
 
 void 
+#if QT_VERSION >= 0x60000
+ViewObjectWidget::enterEvent (QEnterEvent * /*event*/)
+#else
 ViewObjectWidget::enterEvent (QEvent * /*event*/)
+#endif
 {
 BEGIN_PROTECTED  
   m_mouse_inside = true;

src/laybasic/laybasic/layViewObject.h

@@ -1029,7 +1029,11 @@ protected:
   /**
    *  @brief Qt mouse enter event handler
    */
+#if QT_VERSION >= 0x60000
+  void enterEvent (QEnterEvent *e);
+#else
   void enterEvent (QEvent *e);
+#endif
 
   /**
    *  @brief Qt mouse button press event handler