.\" $Id: libssh2_trace_sethandler.3,v 1.1 2008/12/26 07:46:45 bagder Exp $ .\" .TH libssh2_trace_sethandler 3 "03 Nov 2009" "libssh2 1.2" "libssh2 manual" .SH NAME libssh2_trace_sethandler - set a trace output handler .SH SYNOPSIS #include typedef void (*libssh2_trace_handler_func)(LIBSSH2_SESSION*, const char*, size_t); LIBSSH2_API int libssh2_trace_sethandler(LIBSSH2_SESSION *session, libssh2_trace_handler_func callback); .SH DESCRIPTION This function can be called to install a trace output handler for your application. By default, when tracing has been switched on via a call to libssh2_trace(), any output is written to stderr. By calling this method and passing a function pointer that matches the libssh2_trace_handler_func prototype, libssh2 will call back as it generates trace output. This can be used to capture the trace output and put it into a log file or diagnostic window. This function has no effect unless libssh2 was built to support this option, and a typical "release build" might not.