QT代码，用来显示modelview，带全套代码，小型程序。-QT code, used to display modelview, with a full set of code, small-scale program.

from article Building a Lightweight COM Interception fr a mework, Part II: The Guts of the UD - Keith Brown The Universal Delegator provides the code necessary to compose arbitrary services on top of existing COM objec

Keith s Browns most excellent Universal Delegator provides a mechanism for inserting arbitrary code between a client and an object. The TraceHook is a UD Hook that traces method calls by object name, interface name