wcLogPrintf( )

Prints output to a log file.

Example

returnCode = wcLogPrintf(cntrlHandle, "%4.00f %25s\n", 
                         price, itemDescription);

int wcLogPrintf(void *controlHandle, 
                char *format, 
                valueToPrint[, valueToPrint]...)

controlHandle	The handle to the control structure.
format	A formatting string that specifies how to convert and print the output. Syntax is identical with that used in the C printf( ) function.
valueToPrint	Value to be converted, formatted, and printed.

0	Success.
Error code	Failure or exception. For a list of possible error codes, see Error Messages.

To specify the location and file name of the log file, set the MI_WEBLOGFILE parameter in the configuration file.
To make sure the log file does not get too large, set the MI_WEBLOGMAXSIZE parameter in the configuration file.

The following code shows how wcLogPrintf( ) is used in an application.


	wcGetVariable(wcp, "$MIval", &pageId);

	wcLogPrintf(wcp, "The current value of $MIval is %s\n", pageId);