Just looking for the best way to do add debug messges that can be seen from Apdiag.exe:

My idea is to set a Tag as TraceLevel in the project, based on the value the messages will be displayed or not, so I can change it at runtime:

TraceTime(DWORD dwTraceLevel, char* pszFormat, <Parameter>);

But cannot understand how pszFormat should be set.

Or it is better to use a classic:

printf("nameof the funcion: start ------------------------------------------ \n");

Thank you for point me out, so I believe I should write  my own message manager as project function, sometingh like: 

i.e.

void msg_ok(char** texttodisplay)

{

LOG_LEVEL = GetTagChar("LOGLEVEL");

WHOTRIGGEREDTHIS = ??????;

DATETIME = ?????;

char* pszValue = NULL;

char szValue[101];

pszValue = GetTagChar("Varname");

//The value of the variable is read and temporarily saved in pszValue.

/*If the value is valid, the return value of the function

is saved in the local character string szValue.

A maximum of 100 characters are saved. */

if(pszValue !=NULL)

//!=NULL, this check must be done

//so that no NULL pointers are transferred

{

strncpy(szValue,pszValue,100);

concatenate(DATETIME,WHOTRIGGEREDTHIS, szValue);

TraceTime( LOG_LEVEL , szValue);

}

else

{

TraceTime( 0 , "all wrong");

printf("Pointer invalid\r\n");

//Transfer invalid value

}

that can be called from other scripts as:

msg_ok("hello from my script");

I'm not much of a C programmer, but I need to enhance debug, or there's somewhere something ready  to do this?