Ur Example Did work .. had it same way in my appication but somehow didn't work
I cannot help without seeing the project.
Found out that Checkbox does not work either with TriStateCheckboxes
In order for the checks to work, you have to:
1. Set toCheckSupport to true(TreeOptions->Misc Options)
2. After the node is created, add the following line:
Node := VST.AddChild(nil);
Data := VST.GetNodeData(Node);
Data^.FName := 'aaaa' + sLineBreak + 'bbbb' + sLineBreak + 'cccc';
VST.MultiLine[Node] := True;
Node^.CheckType := ctTriStateCheckBox; //<-- this one
is there some option wich blocks those events ?
No. Those events works fine for me.