@ GNU AS assembler header file for DCS
@ Written by DefMod (Dec  9 2012) on Sun Dec  9 15:45:47 2012
@ Jonathan Coxhead, jonathan@doves.demon.co.uk, 5 Sept 1995

@ OSLib---efficient, type-safe, transparent, extensible,
@ register-safe API coverage of RISC OS
@ 
@ Copyright (c) 1994-2012 Jonathan Coxhead and OSLib maintainers
@ 
@ Licence:
@ 
@    OSLib 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 1, or (at your option)
@ any later version - and this with the following clarification and
@ special exception:
@ 
@    Linking this library statically or dynamically with other modules
@ is making a combined work based on this library. Thus, the terms
@ and conditions of the GNU General Public License cover the whole
@ combination.
@ 
@    As a special exception, the copyright holders of this library
@ give you permission to link this library with independent modules
@ to produce an executable, regardless of the license terms of these
@ independent modules, and to copy and distribute the resulting
@ executable under terms of your choice, provided that you also meet,
@ for each linked independent module, the terms and conditions of the
@ license of that module. An independent module is a module which is
@ not derived from or based on this library. If you modify this
@ library, you may extend this exception to your version of the library,
@ but you are not obliged to do so. If you do not wish to do so, delete
@ this exception statement from your version.
@ 
@    OSLib 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 programme; if not, write to the Free Software
@ Foundation, Inc, 675 Mass Ave, Cambridge, MA 02139, USA.

#ifndef DCS_Hdr
#  define DCS_Hdr

#  ifndef Get_Types
#    define Get_Types
#    include "oslib/Types.Hdr"
#  endif

#  ifndef Get_OS
#    define Get_OS
#    include "oslib/OS.Hdr"
#  endif

#  ifndef Get_Toolbox
#    define Get_Toolbox
#    include "oslib/Toolbox.Hdr"
#  endif

#  ifndef Get_Window
#    define Get_Window
#    include "oslib/Window.Hdr"
#  endif

@Symbols for constants
#  define Class_DCS 0x82a80
#  define DCS_GenerateAboutToBeShown 0x1
#  define DCS_GenerateDialogueCompleted 0x2
#  define Action_DCSAboutToBeShown 0x82a80
#  define Action_DCSDiscard 0x82a81
#  define Action_DCSSave 0x82a82
#  define Action_DCSDialogueCompleted 0x82a83
#  define Action_DCSCancel 0x82a84
#  define Error_DCSAllocFailed 0x80b101
#  define Error_DCSTasksActive 0x80b102
#  define DCS_FileIcon 0x82a800
#  define DCS_Discard 0x82a801
#  define DCS_Cancel 0x82a802
#  define DCS_Save 0x82a803

@Symbols for structure offsets and sizes
        .struct 0
        .skip   Bits
DCS_Flags                      : 

        .struct 0
DCS_Object_flags               : .skip   DCS_Flags
DCS_Object_title               : .skip   Toolbox_MsgReference
DCS_Object_title_limit         : .skip   Int
DCS_Object_message             : .skip   Toolbox_MsgReference
DCS_Object_message_limit       : .skip   Int
DCS_Object_alternative_window_name: .skip   Toolbox_StringReference
DCS_Object                     : 

        .struct 0
        Toolbox_ResourceFileObject_MEMBERS DCS_ObjectTemplate
DCS_ObjectTemplate_objectflags : .skip   DCS_Flags
DCS_ObjectTemplate_title       : .skip   Toolbox_MsgReference
DCS_ObjectTemplate_title_limit : .skip   Int
DCS_ObjectTemplate_message     : .skip   Toolbox_MsgReference
DCS_ObjectTemplate_message_limit: .skip   Int
DCS_ObjectTemplate_alternative_window_name: .skip   Toolbox_StringReference
DCS_ObjectTemplate             : 

        .struct 0
        .skip   Toolbox_Full
DCS_Full                       : 

        .struct 0
DCS_ActionAboutToBeShown_tag   : .skip   Toolbox_PositionTag
DCS_ActionAboutToBeShown_position: 
DCS_ActionAboutToBeShown_position_top_left: .skip   OS_Coord
        .struct DCS_ActionAboutToBeShown_position
DCS_ActionAboutToBeShown_position_full: .skip   DCS_Full
DCS_ActionAboutToBeShown       : 

        .struct 0
        Toolbox_ActionHeader_MEMBERS DCS_ActionAboutToBeShownBlock
DCS_ActionAboutToBeShownBlock_tag: .skip   Toolbox_PositionTag
DCS_ActionAboutToBeShownBlock_position: 
DCS_ActionAboutToBeShownBlock_position_top_left: .skip   OS_Coord
        .struct DCS_ActionAboutToBeShownBlock_position
DCS_ActionAboutToBeShownBlock_position_full: .skip   DCS_Full
DCS_ActionAboutToBeShownBlock  : 

        .struct 0
        .skip   Toolbox_ActionHeaderBase
DCS_ActionDiscardBlock         : 

        .struct 0
        .skip   Toolbox_ActionHeaderBase
DCS_ActionSaveBlock            : 

        .struct 0
        .skip   Toolbox_ActionHeaderBase
DCS_ActionDialogueCompletedBlock: 

        .struct 0
        .skip   Toolbox_ActionHeaderBase
DCS_ActionCancelBlock          : 


@Symbols for SWI's and SWI reason codes
.set XDCS_ClassSWI,0xa2a80
.set DCS_ClassSWI,0x82a80

.set XDCS_PostFilter,0xa2a81
.set DCS_PostFilter,0x82a81

.set XDCS_PreFilter,0xa2a82
.set DCS_PreFilter,0x82a82

#  define DCS_GetWindowId 0x0
   @Entry
   @  R0 = flags (Bits)
   @  R1 = dcs (Toolbox_O)
   @  R2 = &0
   @Exit
   @  R0 = window (Toolbox_O)

#  define DCS_SetMessage 0x1
   @Entry
   @  R0 = flags (Bits)
   @  R1 = dcs (Toolbox_O)
   @  R2 = &1
   @  R3 -> message (String)

#  define DCS_GetMessage 0x2
   @Entry
   @  R0 = flags (Bits)
   @  R1 = dcs (Toolbox_O)
   @  R2 = &2
   @  R3 = buffer (pointer to String)
   @  R4 = size (Int)
   @Exit
   @  R4 = used (Int)

#  define DCS_SetTitle 0x3
   @Entry
   @  R0 = flags (Bits)
   @  R1 = dcs (Toolbox_O)
   @  R2 = &3
   @  R3 -> title (String)

#  define DCS_GetTitle 0x4
   @Entry
   @  R0 = flags (Bits)
   @  R1 = dcs (Toolbox_O)
   @  R2 = &4
   @  R3 = buffer (pointer to String)
   @  R4 = size (Int)
   @Exit
   @  R4 = used (Int)

#endif
