include/queue.h

   1 /*
   2  * Message queues definitions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  */
   6
   7 #ifndef __WINE_QUEUE_H
   8 #define __WINE_QUEUE_H
   9
  10 #include "windows.h"
  11
  12   /* Message as stored in the queue (contains the extraInfo field) */
  13 typedef struct tagQMSG
  14 {
  15     DWORD   extraInfo;  /* Only in 3.1 */
  16     MSG16   msg;
  17 } QMSG;
  18
  19 typedef struct
  20 {
  21   LRESULT   lResult;
  22   BOOL16    bPending;
  23 } QSMCTRL;
  24
  25 #pragma pack(1)
  26
  27 typedef struct tagMESSAGEQUEUE
  28 {
  29   HQUEUE16  next;                   /* 00 Next queue */
  30   HTASK16   hTask;                  /* 02 hTask owning the queue */
  31   WORD      msgSize;                /* 04 Size of messages in the queue */
  32   WORD      msgCount;               /* 06 Number of waiting messages */
  33   WORD      nextMessage;            /* 08 Next message to be retrieved */
  34   WORD      nextFreeMessage;        /* 0a Next available slot in the queue */
  35   WORD      queueSize;              /* 0c Size of the queue */
  36   DWORD     GetMessageTimeVal WINE_PACKED;  /* 0e Value for GetMessageTime */
  37   DWORD     GetMessagePosVal WINE_PACKED;   /* 12 Value for GetMessagePos */
  38   HQUEUE16  self;                   /* 16 Handle to self (was: reserved) */
  39   DWORD     GetMessageExtraInfoVal; /* 18 Value for GetMessageExtraInfo */
  40   WORD      wParamHigh;             /* 1c High word of wParam (was: reserved)*/
  41   LPARAM    lParam WINE_PACKED;     /* 1e Next 4 values set by SendMessage */
  42   WPARAM16  wParam;                 /* 22 */
  43   UINT16    msg;                    /* 24 */
  44   HWND16    hWnd;                   /* 26 */
  45   DWORD     SendMessageReturn;      /* 28 Return value for SendMessage */
  46   WORD      wPostQMsg;              /* 2c PostQuitMessage flag */
  47   WORD      wExitCode;              /* 2e PostQuitMessage exit code */
  48   WORD      flags;                  /* 30 Queue flags */
  49   QSMCTRL*  smResultInit;           /* 32 1st LRESULT ptr - was: reserved */
  50   WORD      wWinVersion;            /* 36 Expected Windows version */
  51   HQUEUE16  InSendMessageHandle;    /* 38 Queue of task that sent a message */
  52   HTASK16   hSendingTask;           /* 3a Handle of task that sent a message */
  53   HTASK16   hPrevSendingTask;       /* 3c Handle of previous sender */
  54   WORD      wPaintCount;            /* 3e Number of WM_PAINT needed */
  55   WORD      wTimerCount;            /* 40 Number of timers for this task */
  56   WORD      changeBits;             /* 42 Changed wake-up bits */
  57   WORD      wakeBits;               /* 44 Queue wake-up bits */
  58   WORD      wakeMask;               /* 46 Queue wake-up mask */
  59   QSMCTRL*  smResultCurrent;        /* 48 ptrs to SendMessage() LRESULT - point to */
  60   WORD      SendMsgReturnPtr[1];    /*    values on stack */
  61   HANDLE16  hCurHook;               /* 4e Current hook */
  62   HANDLE16  hooks[WH_NB_HOOKS];     /* 50 Task hooks list */
  63   QSMCTRL*  smResult;               /* 6c 3rd LRESULT ptr - was: reserved */
  64   QMSG      messages[1];            /* 70 Queue messages */
  65 } MESSAGEQUEUE;
  66
  67 #pragma pack(4)
  68
  69 /* Extra (undocumented) queue wake bits - see "Undoc. Windows" */
  70 #define QS_SMRESULT      0x8000  /* Queue has a SendMessage() result */
  71 #define QS_SMPARAMSFREE  0x4000  /* SendMessage() parameters are available */
  72
  73 /* Queue flags */
  74 #define QUEUE_FLAG_XEVENT  0x0001
  75 #define QUEUE_SM_WIN32     0x0002  /* Currently sent message is Win32 */
  76 #define QUEUE_SM_UNICODE   0x0004  /* Currently sent message is Unicode */
  77
  78 extern void QUEUE_DumpQueue( HQUEUE16 hQueue );
  79 extern void QUEUE_WalkQueues(void);
  80 extern BOOL32 QUEUE_IsExitingQueue( HQUEUE16 hQueue );
  81 extern void QUEUE_SetExitingQueue( HQUEUE16 hQueue );
  82 extern MESSAGEQUEUE *QUEUE_GetSysQueue(void);
  83 extern void QUEUE_Signal( HTASK16 hTask );
  84 extern void QUEUE_Wait(void);
  85 extern void QUEUE_SetWakeBit( MESSAGEQUEUE *queue, WORD bit );
  86 extern void QUEUE_ClearWakeBit( MESSAGEQUEUE *queue, WORD bit );
  87 extern void QUEUE_ReceiveMessage( MESSAGEQUEUE *queue );
  88 extern void QUEUE_WaitBits( WORD bits );
  89 extern void QUEUE_IncPaintCount( HQUEUE16 hQueue );
  90 extern void QUEUE_DecPaintCount( HQUEUE16 hQueue );
  91 extern void QUEUE_IncTimerCount( HQUEUE16 hQueue );
  92 extern void QUEUE_DecTimerCount( HQUEUE16 hQueue );
  93 extern BOOL32 QUEUE_CreateSysMsgQueue( int size );
  94 extern BOOL32 QUEUE_DeleteMsgQueue( HQUEUE16 hQueue );
  95 extern HTASK16 QUEUE_GetQueueTask( HQUEUE16 hQueue );
  96 extern BOOL32 QUEUE_AddMsg( HQUEUE16 hQueue, MSG16 * msg, DWORD extraInfo );
  97 extern int QUEUE_FindMsg( MESSAGEQUEUE * msgQueue, HWND32 hwnd,
  98                           int first, int last );
  99 extern void QUEUE_RemoveMsg( MESSAGEQUEUE * msgQueue, int pos );
 100 extern void QUEUE_FlushMessages(HQUEUE16);
 101 extern void hardware_event( WORD message, WORD wParam, LONG lParam,
 102                             int xPos, int yPos, DWORD time, DWORD extraInfo );
 103
 104 #endif  /* __WINE_QUEUE_H */