派生于 AcApDocManagerReactor类，并重载documentLockModeChanged。
virtual void documentLockModeChanged(AcApDocument* , AcAp::DocLockMode myPreviousMode, AcAp::DocLockMode myCurrentMode, AcAp::DocLockMode currentMode, const ACHAR* pGlobalCmdName) { if ( CString(_T("PROPERTIES")) == pGlobalCmdName ) { acutPrintf(_T("\n禁止此命令！\n")); Acad::ErrorStatus es = veto(); } };
运行环境：Win10+CAD2014X64
