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TRACE3

Visual Studio 2008

The TRACE macros are obsolete, use ATLTRACE2.

See TRACE0 for a description of the TRACE3 macro.

TRACE3( 
   exp, 
   param1, 
   param2, 
   param3  
)

Parameters

exp: A format string as used in the run-time function printf.
param1: The name of the variable whose value should be dumped.
param2: The name of the variable whose value should be dumped.
param3: The name of the variable whose value should be dumped.

Example

// Example for TRACE3
// get the display context
HDC hdc = ::GetDC(NULL);

// Get information about the display
int nVertRes = ::GetDeviceCaps(hdc, VERTRES);
int nHorzRes = ::GetDeviceCaps(hdc, HORZRES);
int nDepth = ::GetDeviceCaps(hdc, BITSPIXEL);

// Done with the DC, give it back
::ReleaseDC(hdc);

// Tell the user
TRACE3("Your screen is at %d by %d resolution, with %d bits per pixel\n",
   nHorzRes, nVertRes, nDepth);

Requirements

Header: afx.h

Concepts

MFC Macros and Globals

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