[A5] Possible to make alerts?

no-reply@allegro.cc (tariel36) — Tue, 18 Dec 2012 03:15:31 +0000

Hello, I wonder if it is possible to make windows-like error alerts in Allegro. I've found al_set_errno(); and al_get_errno(); functions in manula but I'm not sure how to use it. (Till now I used to report errors in console, but now I wanted to get rid of it).

no-reply@allegro.cc (Arthur Kalliokoski) — Tue, 18 Dec 2012 03:27:28 +0000

For most errors, just putting a string into a dialog box will suffice, e.g.

#SelectExpand
if(!al_init())
{
  al_show_native_message_box(0, "Error", "Failed to initialize Allegro", "", NULL, 0);
  return 1;
}
.
.
.
display = al_create_display(display_width, display_height);
if (!display)
{
  al_show_native_message_box(0, "Error", "Couldn't create display", "", NULL, 0);
  return 1;
}
.
.
.
faceimg = al_load_bitmap("face.tga");
if(!faceimg)
{
  al_show_native_message_box(display, "Error", "Unable to load \"face.tga\"", "", NULL, 0);
  return 1;
}

If you want to get specific strings such as EWOULDBLOCK etc., you'd have to reference those strings manually.

no-reply@allegro.cc (tariel36) — Tue, 18 Dec 2012 03:49:46 +0000

Thanks for fast reply! It should do the job