How to use TJvBalloonWindow as the hint window for Virtual treeview?

Posted by Edwin on Stack Overflow See other posts from Stack Overflow or by Edwin
Published on 2010-03-30T03:42:29Z Indexed on 2010/03/30 4:03 UTC
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I have a 'hint window leftovers' problem with Virtual Treeview in an Office add-in, and now I want to customize the hint window to solve the problem. I want to use TJvBallonHint from the JVCL package, which is also used in other parts of my program.

I inherited TVirtualStringTree and have overridden the GetHintWindowClass method like the following code. The TJvBallonHint window class is applied, but the hint text is not drawn. Any tips for me? Thank you!

function TMyStringTree.GetHintWindowClass: THintWindowClass;
begin
  Result :=TJvBalloonWindow;;
end;

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