{
  Miranda IM: the free IM client for Microsoft  Windows

  Copyright © 2004 Universite Louis PASTEUR, STRASBOURG.
  Copyright © 2004 Scott Ellis (www.scottellis.com.au mail@scottellis.com.au)

  This program is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License
  as published by the Free Software Foundation; either version 2
  of the License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
}
{$IFNDEF M_METACONTACTS}
{$DEFINE M_METACONTACTS}

const
  { gets the handle for the default contact
    wParam=(HANDLE)hMetaContact
    lParam=0
    returns a handle to the default contact, or null on failure }
  MS_MC_GETDEFAULTCONTACT = 'MetaContacts/GetDefault';

  { gets the contact number for the default contact
    wParam=(HANDLE)hMetaContact
    lParam=0
    returns a DWORD contact number, or -1 on failure }
  MS_MC_GETDEFAULTCONTACTNUM = 'MetaContacts/GetDefaultNum';

  { gets the handle for the 'most online' contact
    wParam=(HANDLE)hMetaContact
    lParam=0
    returns a handle to the 'most online' contact }
  MS_MC_GETMOSTONLINECONTACT = 'MetaContacts/GetMostOnline';

  { gets the number of subcontacts for a metacontact
    wParam=(HANDLE)hMetaContact
    lParam=0
    returns a DWORD representing the number of subcontacts for the given metacontact }
  MS_MC_GETNUMCONTACTS = 'MetaContacts/GetNumContacts';

  { gets the handle of a subcontact, using the subcontact's number
    wParam=(HANDLE)hMetaContact
    lParam=(DWORD)contact number
    returns a handle to the specified subcontact }
  MS_MC_GETSUBCONTACT = 'MetaContacts/GetSubContact';

  { sets the default contact, using the subcontact's contact number
    wParam=(HANDLE)hMetaContact
    lParam=(DWORD)contact number
    returns 0 on success }
  MS_MC_SETDEFAULTCONTACTNUM = 'MetaContacts/SetDefault';

  { sets the default contact, using the subcontact's handle
    wParam=(HANDLE)hMetaContact
    lParam=(HANDLE)hSubcontact
    returns 0 on success }
  MS_MC_SETDEFAULTCONTACT = 'MetaContacts/SetDefaultByHandle';

  { forces the metacontact to send using a specific subcontact, using the subcontact's contact number
    wParam=(HANDLE)hMetaContact
    lParam=(DWORD)contact number
    returns 0 on success }
  MS_MC_FORCESENDCONTACTNUM = 'MetaContacts/ForceSendContact';

  { forces the metacontact to send using a specific subcontact, using the subcontact's handle
    wParam=(HANDLE)hMetaContact
    lParam=(HANDLE)hSubcontact
    returns 0 on success (will fail if 'force default' is in effect) }
  MS_MC_FORCESENDCONTACT = 'MetaContacts/ForceSendContactByHandle';

  { 'unforces' the metacontact to send using a specific subcontact
    wParam=(HANDLE)hMetaContact
    lParam=0
    returns 0 on success (will fail if 'force default' is in effect) }
  MS_MC_UNFORCESENDCONTACT = 'MetaContacts/UnforceSendContact';

  { 'forces' or 'unforces' (i.e. toggles) the metacontact to send using it's default contact
    overrides (and clears) 'force send' above, and will even force use of offline contacts
    will send ME_MC_FORCESEND or ME_MC_UNFORCESEND event
    wParam=(HANDLE)hMetaContact
    lParam=0
    returns 1(true) or 0(false) representing new state of 'force default' }
  MS_MC_FORCEDEFAULT = 'MetaContacts/ForceSendDefault';

  { method to get state of 'force' for a metacontact
    wParam=(HANDLE)hMetaContact
    lParam= (DWORD)&contact_number or NULL
    if lparam supplied, the contact_number of the contatct 'in force' will be copied to the address it points to,
    or if none is in force, the value (DWORD)-1 will be copied
    (v0.8.0.8+ returns 1 if 'force default' is true with *lParam == default contact number, else returns 0 with *lParam as above) }
  MS_MC_GETFORCESTATE = 'MetaContacts/GetForceState';

  { fired when a metacontact's default contact changes (fired upon creation of metacontact also, when default is initially set)
    wParam=(HANDLE)hMetaContact
    lParam=(HANDLE)hDefaultContact }
  ME_MC_DEFAULTTCHANGED = 'MetaContacts/DefaultChanged';

  { fired when a metacontact's subcontacts change (fired upon creation of
    metacontact, when contacts are added or removed, and when contacts are
    reordered) - a signal to re-read metacontact data
    wParam=(HANDLE)hMetaContact
    lParam=0 }
  ME_MC_SUBCONTACTSCHANGED = 'MetaContacts/SubcontactsChanged';

  { fired when a metacontact is forced to send using a specific subcontact
    wParam=(HANDLE)hMetaContact
    lParam=(HANDLE)hForceContact  }
  ME_MC_FORCESEND = 'MetaContacts/ForceSend';

  { fired when a metacontact is 'unforced' to send using a specific subcontact
    wParam=(HANDLE)hMetaContact
    lParam=0  }
  ME_MC_UNFORCESEND = 'MetaContacts/UnforceSend';

  { method to get protocol name - used to be sure you're dealing with a "real" metacontacts plugin :)
    wParam=lParam=0 }
  MS_MC_GETPROTOCOLNAME = 'MetaContacts/GetProtoName';

  { wParam=(HANDLE)hContact
    lParam=0
    convert a given contact into a metacontact
  }
  MS_MC_CONVERTTOMETA = 'MetaContacts/ConvertToMetacontact';

  { wParam=(HANDLE)hContact
    lParam=(HANDLE)hMeta
    add an existing contact to a metacontact
  }
  MS_MC_ADDTOMETA = 'MetaContacts/AddToMetacontact';

  { wParam=0
    lParam=(HANDLE)hContact
    remove a contact from a metacontact
  }
  MS_MC_REMOVEFROMMETA = 'MetaContacts/RemoveFromMetacontact';


  { wParam=(BOOL)disable
    lParam=0
    enable/disable the 'hidden group hack' - for clists that support subcontact
    hiding using 'IsSubcontact' setting. Should be called once in the clist
    'onmodulesloaded' event handler (which, since it's loaded after the db, will
    be called before the metacontact onmodulesloaded handler where the subcontact
    hiding is usually done)
  }
  MS_MC_DISABLEHIDDENGROUP = 'MetaContacts/DisableHiddenGroup';

{ returns true if a contact is a metacontact or false otherwise
}
function db_mc_isMeta(hContact:MCONTACT):Integer; stdcall;
                 external CoreDLL name 'db_mc_isMeta';

{ returns true if a contact is a subcontact or false otherwise
}
function db_mc_isSub(hContact:MCONTACT):Integer; stdcall;
                 external CoreDLL name 'db_mc_isSub';

{ returns a meta contact for a subcontact or 0 otherwise
}
function db_mc_getMeta(hContact:MCONTACT):MCONTACT; stdcall;
                 external CoreDLL name 'db_mc_getMeta';

{$ENDIF}