95 lines
3.5 KiB
C
95 lines
3.5 KiB
C
/*
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* Message queues definitions
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*
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* Copyright 1993 Alexandre Julliard
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#ifndef __WINE_QUEUE_H
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#define __WINE_QUEUE_H
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "thread.h"
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#define WH_NB_HOOKS (WH_MAXHOOK-WH_MINHOOK+1)
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/* Per-queue data for the message queue
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* Note that we currently only store the current values for
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* Active, Capture and Focus windows currently.
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* It might be necessary to store a pointer to the system message queue
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* as well since windows 9x maintains per thread system message queues
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*/
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typedef struct tagPERQUEUEDATA
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{
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HWND hWndFocus; /* Focus window */
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HWND hWndActive; /* Active window */
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HWND hWndCapture; /* Capture window */
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INT16 nCaptureHT; /* Capture info (hit-test) */
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ULONG ulRefCount; /* Reference count */
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CRITICAL_SECTION cSection; /* Critical section for thread safe access */
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} PERQUEUEDATA;
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struct received_message_info;
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/* Message queue */
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typedef struct tagMESSAGEQUEUE
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{
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HQUEUE16 self; /* Handle to self (was: reserved) */
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TEB* teb; /* Thread owning queue */
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HANDLE server_queue; /* Handle to server-side queue */
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DWORD recursion_count; /* Counter to prevent infinite SendMessage recursion */
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struct received_message_info *receive_info; /* Info about message being currently received */
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DWORD magic; /* magic number should be QUEUE_MAGIC */
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DWORD lockCount; /* reference counter */
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DWORD GetMessageTimeVal; /* Value for GetMessageTime */
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DWORD GetMessagePosVal; /* Value for GetMessagePos */
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DWORD GetMessageExtraInfoVal; /* Value for GetMessageExtraInfo */
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HCURSOR cursor; /* current cursor */
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INT cursor_count; /* cursor show count */
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HANDLE16 hCurHook; /* Current hook */
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HANDLE16 hooks[WH_NB_HOOKS]; /* Task hooks list */
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PERQUEUEDATA *pQData; /* pointer to (shared) PERQUEUEDATA structure */
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} MESSAGEQUEUE;
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#define QUEUE_MAGIC 0xD46E80AF
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#define MAX_SENDMSG_RECURSION 64
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/* Per queue data management methods */
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HWND PERQDATA_GetFocusWnd( PERQUEUEDATA *pQData );
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HWND PERQDATA_SetFocusWnd( PERQUEUEDATA *pQData, HWND hWndFocus );
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HWND PERQDATA_GetActiveWnd( PERQUEUEDATA *pQData );
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HWND PERQDATA_SetActiveWnd( PERQUEUEDATA *pQData, HWND hWndActive );
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HWND PERQDATA_GetCaptureWnd( INT *hittest );
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HWND PERQDATA_SetCaptureWnd( HWND hWndCapture, INT hittest );
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/* Message queue management methods */
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extern MESSAGEQUEUE *QUEUE_Current(void);
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extern MESSAGEQUEUE *QUEUE_Lock( HQUEUE16 hQueue );
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extern void QUEUE_Unlock( MESSAGEQUEUE *queue );
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extern void QUEUE_DeleteMsgQueue(void);
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#endif /* __WINE_QUEUE_H */
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