/*
 * Message definitions
 *
 * Copyright 1993 Alexandre Julliard
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __WINE_MESSAGE_H
#define __WINE_MESSAGE_H

#include <stdarg.h>

#include "windef.h"
#include "winbase.h"
#include "wine/windef16.h"

struct received_message_info;
struct hook16_queue_info;

/* Message queue */
typedef struct tagMESSAGEQUEUE
{
  HQUEUE16  self;                   /* Handle to self (was: reserved) */
  HANDLE    server_queue;           /* Handle to server-side queue */
  DWORD     recursion_count;        /* Counter to prevent infinite SendMessage recursion */
  HHOOK     hook;                   /* Current hook */
  struct received_message_info *receive_info; /* Info about message being currently received */
  struct hook16_queue_info *hook16_info;      /* Opaque pointer for 16-bit hook support */

  DWORD     GetMessageTimeVal;      /* Value for GetMessageTime */
  DWORD     GetMessagePosVal;       /* Value for GetMessagePos */
  DWORD     GetMessageExtraInfoVal; /* Value for GetMessageExtraInfo */

  HCURSOR   cursor;                 /* current cursor */
  INT       cursor_count;           /* cursor show count */
} MESSAGEQUEUE;


#define MAX_SENDMSG_RECURSION  64

/* queue.c */
extern MESSAGEQUEUE *QUEUE_Current(void);
extern void QUEUE_DeleteMsgQueue(void);

/* message.c */
extern BOOL MSG_process_raw_hardware_message( MSG *msg, ULONG_PTR extra_info, HWND hwnd_filter,
                                              UINT first, UINT last, BOOL remove );
extern BOOL MSG_process_cooked_hardware_message( MSG *msg, ULONG_PTR extra_info, BOOL remove );
extern void MSG_JournalPlayBackMsg(void);
extern LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
                                               UINT msg, WPARAM wparam, LPARAM lparam,
                                               UINT flags, UINT timeout, PDWORD_PTR res_ptr );
extern BOOL MSG_peek_message( MSG *msg, HWND hwnd, UINT first, UINT last, int flags );

/* spy.c */
#define SPY_DISPATCHMESSAGE16     0x0100
#define SPY_DISPATCHMESSAGE       0x0101
#define SPY_SENDMESSAGE16         0x0102
#define SPY_SENDMESSAGE           0x0103
#define SPY_DEFWNDPROC16          0x0104
#define SPY_DEFWNDPROC            0x0105

#define SPY_RESULT_OK16           0x0000
#define SPY_RESULT_OK             0x0001
#define SPY_RESULT_INVALIDHWND16  0x0002
#define SPY_RESULT_INVALIDHWND    0x0003
#define SPY_RESULT_DEFWND16       0x0004
#define SPY_RESULT_DEFWND         0x0005


extern const char *SPY_GetMsgName( UINT msg, HWND hWnd );
extern const char *SPY_GetVKeyName(WPARAM wParam);
extern void SPY_EnterMessage( INT iFlag, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam );
extern void SPY_ExitMessage( INT iFlag, HWND hwnd, UINT msg,
                             LRESULT lReturn, WPARAM wParam, LPARAM lParam );
extern int SPY_Init(void);

/* check if hwnd is a broadcast magic handle */
inline static BOOL is_broadcast( HWND hwnd )
{
    return (hwnd == HWND_BROADCAST || hwnd == HWND_TOPMOST);
}

#endif  /* __WINE_MESSAGE_H */
