register_trace_handler(3)

register_trace_handler – Registers a custom handler for trace output. Allegro game programming library.

Synopsis

#include <allegro.h>
void register_trace_handler(int (*handler)(const char *msg));

Description

Supplies a custom handler function for dealing with trace output. Your callback will be passed a formatted error message in ASCII, and should return non-zero if it has processed the message, or zero to continue with the default actions. You could use this to ignore trace output, or to display the messages on a second monochrome monitor, etc. You can call this function even when Allegro has not been initialised. Example:

int network_broadcaster(const char *text)
{
    int f;
  for (int f = 0; f
     send_msg_to_client(client[f], text);

  return 0; /* Let normal tracing occur. */
}
… register_trace_handler(network_broadcaster);
TRACE("Networked tracing activated
");

See Also

al_trace(3), TRACE(3), register_assert_handler(3)