Description
Called when you receive a message sent while your user was offline.  The sendtime is in seconds since Jan 1, 1970.

Example

bone_set_callback(BONE_CALLBACK_DELAYEDTEXT, callback_delayedtext);

void callback_delayedtext(BONEHANDLE bhnd, const char *origin, long sendtime, const char *message)
{
 printf("Message from %s (sent %d): %s\n", origin, sendtime, message);
}