Liblouis User's and Programmer's Manual
7.15 lou_registerLogCallback ¶
typedef void (*logcallback) ( int level, const char *message); void lou_registerLogCallback ( logcallback callback);
This function can be used to register a custom logging callback. The
callback must take two arguments, the log level and the message string. By default
log messages are printed to stderr, or if a filename was specified
with lou_logFile
then messages are logged to that
file. lou_registerLogCallback
overrides the default
callback. Passing NULL
resets to the default callback.