man TIFFError () - library error handling interface
NAME
TIFFError, TIFFSetErrorHandler - library error handling interface
SYNOPSIS
#include <tiffio.h>
void TIFFError(const char *module, const char *fmt, ...)
#include <stdarg.h>
typedef void (*TIFFErrorHandler)(const char *module, const char *fmt, va_list ap);
TIFFErrorHandler TIFFSetErrorHandler(TIFFErrorHandler handler);
DESCRIPTION
TIFFError invokes the library-wide error handling function to (normally) write an error message to the stderr. The fmt parameter is a printf(3S) format string, and any number arguments can be supplied. The module parameter, if non-zero, is printed before the message; it typically is used to identify the software module in which an error is detected.
Applications that desire to capture control in the event of an error should use TIFFSetErrorHandler to override the default error handler. A NULL (0) error handling function may be installed to suppress error messages.
RETURN VALUES
TIFFSetErrorHandler returns a reference to the previous error handling function.