register_trace_handler(3)

📦 version 4.4.3.1, in fedora 43, fedora 44

✨ register_trace_handler ✨

okay bestie, welcome to the Allegro manual — this one's a (3) library call, and it's giving custom trace handler energy 🎀

💖 NAME 💖

register_trace_handler — registers a custom handler for trace output, from the Allegro game programming library. 🦋

🌸 SYNOPSIS 🌸

#include <allegro.h>

void register_trace_handler(int (*handler)(const char *msg));

💅 DESCRIPTION 💅

so basically, this function hands you the keys to the trace-output kingdom. 👑 You supply a custom handler function, and Allegro will route its trace output through your callback instead of just doing the default thing.

Your callback gets passed a formatted error message in ASCII, and here's the vibe check on what you return:

  • return non-zero → you've processed the message, tysm, we're done here ✨
  • return zero → Allegro keeps going with the default actions, no cap

What would you even use this for?? literally so many things, bestie. You could use it to ignore trace output entirely (mute era 🙈), or to display the messages on a second monochrome monitor, etc. etc. slay.

And the ICONIC part: you can call this function even when Allegro has not been initialised. 🫶 no setup needed, she's ready whenever.

Example, because we love a demonstration:

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");

🌈 SEE ALSO 🌈

mwah 💋 that's the whole page — brought to you by Allegro, version 4.4.3, and yeah this register_trace_handler(3) era is officially closed. go forth and trace responsibly, bestie 🎀✨💖

📦 where this page comes from