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 #ifndef WINELIB
  13 #pragma pack(1)
  14 #endif
  15
  16   /* Message as stored in the queue (contains the extraInfo field) */
  17 typedef struct tagQMSG
  18 {
  19     DWORD   extraInfo;  /* Only in 3.1 */
  20     MSG16   msg;
  21 } QMSG;
  22
  23
  24 typedef struct tagMESSAGEQUEUE
  25 {
  26   HQUEUE    next;                   /* 00 Next queue */
  27   HTASK     hTask;                  /* 02 hTask owning the queue */
  28   WORD      msgSize;                /* 04 Size of messages in the queue */
  29   WORD      msgCount;               /* 06 Number of waiting messages */
  30   WORD      nextMessage;            /* 08 Next message to be retrieved */
  31   WORD      nextFreeMessage;        /* 0a Next available slot in the queue */
  32   WORD      queueSize;              /* 0c Size of the queue */
  33   DWORD     GetMessageTimeVal WINE_PACKED;  /* 0e Value for GetMessageTime */
  34   DWORD     GetMessagePosVal WINE_PACKED;   /* 12 Value for GetMessagePos */
  35   HQUEUE    self;                   /* 16 Handle to self (was: reserved) */
  36   DWORD     GetMessageExtraInfoVal; /* 18 Value for GetMessageExtraInfo */
  37   WORD      reserved2;              /* 1c Unknown */
  38   LPARAM    lParam WINE_PACKED;     /* 1e Next 4 values set by SendMessage */
  39   WPARAM    wParam;                 /* 22 */
  40   UINT      msg;                    /* 24 */
  41   HWND      hWnd;                   /* 26 */
  42   DWORD     SendMessageReturn;      /* 28 Return value for SendMessage */
  43   WORD      wPostQMsg;              /* 2c PostQuitMessage flag */
  44   WORD      wExitCode;              /* 2e PostQuitMessage exit code */
  45   WORD      flags;                  /* 30 Queue flags */
  46   WORD      reserved3[2];           /* 32 Unknown */
  47   WORD      wWinVersion;            /* 36 Expected Windows version */
  48   HQUEUE    InSendMessageHandle;    /* 38 Queue of task that sent a message */
  49   HTASK     hSendingTask;           /* 3a Handle of task that sent a message */
  50   HTASK     hPrevSendingTask;       /* 3c Handle of previous sender */
  51   WORD      wPaintCount;            /* 3e Number of WM_PAINT needed */
  52   WORD      wTimerCount;            /* 40 Number of timers for this task */
  53   WORD      changeBits;             /* 42 Changed wake-up bits */
  54   WORD      wakeBits;               /* 44 Queue wake-up bits */
  55   WORD      wakeMask;               /* 46 Queue wake-up mask */
  56   WORD      SendMsgReturnPtrs[3];   /* 48 Near ptr to return values (?) */
  57   HANDLE    hCurHook;               /* 4e Current hook */
  58   HANDLE    hooks[WH_NB_HOOKS];     /* 50 Task hooks list */
  59   WORD      reserved4[3];           /* 68 Unknown */
  60   QMSG      messages[1];            /* 6e Queue messages */
  61 } MESSAGEQUEUE;
  62
  63 #ifndef WINELIB
  64 #pragma pack(4)
  65 #endif
  66
  67 /* Extra (undocumented) queue wake bits; not sure about the values */
  68 #define QS_SMRESULT      0x0100  /* Queue has a SendMessage() result */
  69 #define QS_SMPARAMSFREE  0x0200  /* SendMessage() parameters are available */
  70
  71 /* Queue flags */
  72 #define QUEUE_FLAG_REPLIED  0x0001  /* Replied to a SendMessage() */
  73
  74 extern void QUEUE_DumpQueue( HQUEUE hQueue );
  75 extern void QUEUE_WalkQueues(void);
  76 extern MESSAGEQUEUE *QUEUE_GetSysQueue(void);
  77 extern void QUEUE_SetWakeBit( MESSAGEQUEUE *queue, WORD bit );
  78 extern void QUEUE_ClearWakeBit( MESSAGEQUEUE *queue, WORD bit );
  79 extern void QUEUE_ReceiveMessage( MESSAGEQUEUE *queue );
  80 extern void QUEUE_WaitBits( WORD bits );
  81 extern void QUEUE_IncPaintCount( HQUEUE hQueue );
  82 extern void QUEUE_DecPaintCount( HQUEUE hQueue );
  83 extern void QUEUE_IncTimerCount( HQUEUE hQueue );
  84 extern void QUEUE_DecTimerCount( HQUEUE hQueue );
  85 extern BOOL QUEUE_CreateSysMsgQueue( int size );
  86 extern BOOL QUEUE_DeleteMsgQueue( HQUEUE hQueue );
  87 extern HTASK QUEUE_GetQueueTask( HQUEUE hQueue );
  88 extern BOOL QUEUE_AddMsg( HQUEUE hQueue, MSG16 * msg, DWORD extraInfo );
  89 extern int QUEUE_FindMsg( MESSAGEQUEUE * msgQueue, HWND hwnd,
  90                           int first, int last );
  91 extern void QUEUE_RemoveMsg( MESSAGEQUEUE * msgQueue, int pos );
  92 extern void hardware_event( WORD message, WORD wParam, LONG lParam,
  93                             int xPos, int yPos, DWORD time, DWORD extraInfo );
  94
  95 #endif  /* __WINE_QUEUE_H */