V6.4.1: (26 Oct 2016)

• Fixed #549: Drawing issue with toCheckSupport an toExtendedFocus
• Fixed #663: Exception pressing return on an edited item with no columns)
• Fixed #661: Minimal Demo 2 different problems, can't select on start up, multiple clicks causes error
• Fixed problem with wrongly drawn checkbox in column headers.
• VirtualTreePerItemAction now initializes all nodes before it works with them and changes e.g. the check state.
• TBaseVirtualTree.DoGetImageIndex() now always tries to assign a default image list as result, even if OnGetImage and OnGetImageEx are not assigned. So derived controls do not need to make this step.