Extended Trace: Trace macros for Win32.

• Download demo project + files - 6 Kb

Overview

Extended Trace is a collection of a lot of useful traces for Win32, such as:

• TRACE(...) implementation for Win32.
• Messages with source code links. Just double click on the message in the Output Window, and jump to the source code.
• Function parameters. Are you wonder what parameters your function was called with? Just call a simple macro, and will trace yor function prototype with the actual parameter values to the Output Window.
• Call stack information. You can trace the call stack with function prototypes and parameters' values. Just like the Visual Studio Call Stack window, but this is in run-time.

Usage

Add the ExtendedTrace.cpp to your project, and include ExtendedTrace.h to your source file.

Macros

EXTENDEDTRACEINITIALIZE( IniSymbolPath )

Initialize the symbol information. IniSymbolPath is the search path for the symbol files. The built-in path is ".;%_NT_SYMBOL_PATH%;%_NT_ALTERNATE_SYMBOL_PATH%;%SYSTEMROOT%;%SYSTEMROOT%\System32;". IniSymbolPath will be added to the built-in path. IniSymbolPath can be NULL.

EXTENDEDTRACEUNINITIALIZE()

Frees up the symbol information.

SRCLINKTRACECUSTOM( Msg, File, Line)

Write a message(Msg) to the Output Window with a link to File(Line)

SRCLINKTRACE( Msg )

Write a message(Msg) to the Output Window with a link to its source code.

FNPARAMTRACE()

Write the function prototype with parameters to the Output Window. You can call this function anytime in a function.

STACKTRACEMSG( Msg ), STACKTRACE(), THREADSTACKTRACEMSG( hThread, Msg ), THREADSTACKTRACE( hThread )

Dumps the call stack with function prototypes and the parameters' values to the Output Window. The call stack elements dumped with source code links, so you can jump directly to them.

TRACEF(...)

Same as the MFC TRACE(...)

Note: If you're using only TRACEF(...) or SRCLINKTRACExxx(...) macros, you don't need EXTENDEDTRACEINITIALIZE(...)/EXTENDEDTRACEUNINITIALIZE.

Example

#include "ExtendedTrace.h"

void g ( LPTSTR )
{
	// Dumps the actual call stack
	STACKTRACE();
}

void f( int, int, int )
{
	// What parameters was this function called with?
	FNPARAMTRACE();
	g( NULL );
}

int main( int, char** )
{
	// Just like the TRACE(...) in MFC
	TRACEF( _T("Application started at %d\n"), clock() );

	// Initializes the symbol files
	EXTENDEDTRACEINITIALIZE( NULL );

	// Trace message with a link to this line in the source code
	SRCLINKTRACE( _T("I'm calling f(...)\n") );

	f( 1, 2, 3);

	// Cleaning up
	EXTENDEDTRACEUNINITIALIZE();

	TRACEF( _T("Application ended at %d\n"), clock() );

	return 0;
}

The output in the Output Window:

Application started at 578
Loaded 'D:\WINNT\system32\dbghelp.dll', no matching symbolic information found.
c:\temp\magictrace\main.cpp(28) : I'm calling f(...)
Function info(thread=0x36C) : void f(int=0x00000001,int=0x00000002,int=0x00000003)
Call stack info(thread=0x36C) : 
     c:\temp\magictrace\main.cpp(12) : void g(char *=0x00000000)
     c:\temp\magictrace\main.cpp(19) : void f(int=0x00000001,int=0x00000002,int=0x00000003)
     c:\temp\magictrace\main.cpp(30) : main(int=0x00000001,TCHAR * *=0x00522C88)
     crtexe.c(338) : mainCRTStartup()
     KERNEL32!0x77E87903 : SetUnhandledExceptionFilter
Application ended at 1171
The thread 0x36C has exited with code 0 (0x0).

Enjoy!

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