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/*
* Message queues 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_QUEUE_H
#define __WINE_QUEUE_H
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "thread.h"
#define WH_NB_HOOKS (WH_MAXHOOK-WH_MINHOOK+1)
/* Per-queue data for the message queue
* Note that we currently only store the current values for
* Active, Capture and Focus windows currently.
* It might be necessary to store a pointer to the system message queue
* as well since windows 9x maintains per thread system message queues
*/
typedef struct tagPERQUEUEDATA
{
HWND hWndFocus; /* Focus window */
HWND hWndActive; /* Active window */
HWND hWndCapture; /* Capture window */
INT16 nCaptureHT; /* Capture info (hit-test) */
ULONG ulRefCount; /* Reference count */
CRITICAL_SECTION cSection; /* Critical section for thread safe access */
} PERQUEUEDATA;
struct received_message_info;
/* Message queue */
typedef struct tagMESSAGEQUEUE
{
HQUEUE16 self; /* Handle to self (was: reserved) */
TEB* teb; /* Thread owning queue */
HANDLE server_queue; /* Handle to server-side queue */
struct received_message_info *receive_info; /* Info about message being currently received */
DWORD magic; /* magic number should be QUEUE_MAGIC */
DWORD lockCount; /* reference counter */
DWORD GetMessageTimeVal; /* Value for GetMessageTime */
DWORD GetMessagePosVal; /* Value for GetMessagePos */
DWORD GetMessageExtraInfoVal; /* Value for GetMessageExtraInfo */
HANDLE16 hCurHook; /* Current hook */
HANDLE16 hooks[WH_NB_HOOKS]; /* Task hooks list */
PERQUEUEDATA *pQData; /* pointer to (shared) PERQUEUEDATA structure */
} MESSAGEQUEUE;
#define QUEUE_MAGIC 0xD46E80AF
/* Per queue data management methods */
HWND PERQDATA_GetFocusWnd( PERQUEUEDATA *pQData );
HWND PERQDATA_SetFocusWnd( PERQUEUEDATA *pQData, HWND hWndFocus );
HWND PERQDATA_GetActiveWnd( PERQUEUEDATA *pQData );
HWND PERQDATA_SetActiveWnd( PERQUEUEDATA *pQData, HWND hWndActive );
HWND PERQDATA_GetCaptureWnd( INT *hittest );
HWND PERQDATA_SetCaptureWnd( HWND hWndCapture, INT hittest );
/* Message queue management methods */
extern MESSAGEQUEUE *QUEUE_Current(void);
extern MESSAGEQUEUE *QUEUE_Lock( HQUEUE16 hQueue );
extern void QUEUE_Unlock( MESSAGEQUEUE *queue );
extern void QUEUE_DeleteMsgQueue(void);
#endif /* __WINE_QUEUE_H */
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