The send_msg function is a generalized way of sending a message to a
player/mob, player/mobs in a room, or an object's owner.  The syntax is
described below...


send_msg(int dest, int mode, int min, int max, int x1, 
         int x2, char *format,...);

----
DEST is a mud-index for an object, player/mob, or location.  int2idx is
called in order to make the transformation, or you may use the macro
sendloc(plr) for player's locations.  It may also be assigned the value
DEST_ALL, which means to send it to everybody in the game.

----
MODE is one of { MODE_SFLAG, MODE_NSFLAG, MODE_PFLAG, MODE_NPFLAG, 
                 MODE_LANG, MODE_LANG, MODE_NLANG, MODE_QUIET, 0 }

MODE_SFLAG, and MODE_PFLAG can be OR'd (|) with any sflag or pflag.
MODE_NSFLAG and MODE_NPFLAG are the exact same except they require
that the person does not have that flag.  If you would like to
not have any special requirements, you may use a 0.

---
MIN and MAX are minimum and maximum levels for the message.

---
X1 and X2 are players to not send the messages to, or the keyword NOBODY

---
FORMAT has the usual meaning, same as printf but with color codes :)


Example:

    send_msg (DEST_ALL, MODE_SFLAG | MS (SFL_SEEEXT), max (pvis (mynum),
               LVL_WIZARD), LVL_MAX, mynum, NOBODY, "&+B[&+WChange &*(Sex: "
              "%s): &+W%s &*changed &+W%s&+B]\n",
              psex (a) ? "Female" : "Male", pname (mynum), pname (a));

Will send out a message to everyone who has the SEEEXT sflag set, with
the minimum level being either the player's visibility or WIZARD.  It
will not send the message to the person who typed the command, mynum.


The two remaining functions, sendf and sendl, are for mobiles/players, and
locations respectively.  Examples:

sendf(plx, "Hello.\n");
sendl(ploc(plx), "Hello again.\n");