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register_trace_handler(3)

Allegro

allegro-devel

A game programming library

liballeg-devel

A game programming library

liballeg44-devel

A game programming library

NAME

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\n");
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