nt/ddeclient.c

   1 /* Simple client interface to DDE servers.
   2    Copyright (C) 1998 Free Software Foundation, Inc.
   3
   4 This file is part of GNU Emacs.
   5
   6 GNU Emacs is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU General Public License as published by
   8 the Free Software Foundation; either version 2, or (at your option)
   9 any later version.
  10
  11 GNU Emacs is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU General Public License for more details.
  15
  16 You should have received a copy of the GNU General Public License
  17 along with GNU Emacs; see the file COPYING.  If not, write to
  18 the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  19 Boston, MA 02111-1307, USA.  */
  20
  21 #include <windows.h>
  22 #include <ddeml.h>
  23 #include <stdlib.h>
  24 #include <stdio.h>
  25
  26 HDDEDATA CALLBACK
  27 DdeCallback (UINT uType, UINT uFmt, HCONV hconv,
  28              HSZ hsz1, HSZ hsz2, HDDEDATA hdata,
  29              DWORD dwData1, DWORD dwData2)
  30 {
  31   return ((HDDEDATA) NULL);
  32 }
  33
  34 #define DdeCommand(str)         \
  35         DdeClientTransaction (str, strlen (str)+1, HConversation, (HSZ)NULL, \
  36                               CF_TEXT, XTYP_EXECUTE, 30000, NULL)
  37
  38 int
  39 main (argc, argv)
  40      int argc;
  41      char *argv[];
  42 {
  43   DWORD idDde = 0;
  44   HCONV HConversation;
  45   HSZ   Server;
  46   HSZ   Topic = 0;
  47   char  command[1024];
  48
  49   if (argc < 2)
  50     {
  51       fprintf (stderr, "usage: ddeclient server [topic]\n");
  52       exit (1);
  53     }
  54
  55   DdeInitialize (&idDde, (PFNCALLBACK)DdeCallback, APPCMD_CLIENTONLY, 0);
  56
  57   Server = DdeCreateStringHandle (idDde, argv[1], CP_WINANSI);
  58   if (argc > 2)
  59     Topic = DdeCreateStringHandle (idDde, argv[2], CP_WINANSI);
  60
  61   HConversation = DdeConnect (idDde, Server, Topic, NULL);
  62   if (HConversation != 0)
  63     {
  64       while (fgets (command, sizeof(command), stdin) != NULL)
  65         DdeCommand (command);
  66
  67       DdeDisconnect (HConversation);
  68     }
  69
  70   DdeFreeStringHandle (idDde, Server);
  71   if (Topic)
  72     DdeFreeStringHandle (idDde, Topic);
  73   DdeUninitialize (idDde);
  74
  75   return (0);
  76 }