TRACE
Sends the specified string to the debugger of the current application.
TRACE(exp )
TRACE(DWORD category, UINT level, LPCSTR lpszFormat, ... )
Remarks
See ATLTRACE2 for a description of TRACE. TRACE and ATLTRACE2 have the same behavior.
In the debug version of MFC, this macro sends the specified string to the debugger of the current application. In a release build, this macro compiles to nothing (no code is generated at all).
For more information, see Debugging MFC Applications.
Requirements
Header: afx.h