Note 83: The signature of the OnLogTrace event was different in the Win32 and .NET versions of the VCL, a very rare case. For this reason in the example written for Mastering Delphi 2005 I had to resort to IFDEF statements for the event handlers. With this change I guess the two versions will become fully compatible.
The note refers to the fact that OnLogTrace in Delphi 2007 is incompatible with past versions of Delphi, with the goal of becoming compatible with VCL for .NET.
This blog post is part of my "113 Delphi 2007 Handbook Notes" blogging project, to promote my new Delphi book.