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 #pragma pack(1)
  20
  21 typedef struct tagMESSAGEQUEUE
  22 {
  23   HQUEUE16  next;                   /* 00 Next queue */
  24   HTASK16   hTask;                  /* 02 hTask owning the queue */
  25   WORD      msgSize;                /* 04 Size of messages in the queue */
  26   WORD      msgCount;               /* 06 Number of waiting messages */
  27   WORD      nextMessage;            /* 08 Next message to be retrieved */
  28   WORD      nextFreeMessage;        /* 0a Next available slot in the queue */
  29   WORD      queueSize;              /* 0c Size of the queue */
  30   DWORD     GetMessageTimeVal WINE_PACKED;  /* 0e Value for GetMessageTime */
  31   DWORD     GetMessagePosVal WINE_PACKED;   /* 12 Value for GetMessagePos */
  32   HQUEUE16  self;                   /* 16 Handle to self (was: reserved) */
  33   DWORD     GetMessageExtraInfoVal; /* 18 Value for GetMessageExtraInfo */
  34   WORD      reserved2;              /* 1c Unknown */
  35   LPARAM    lParam WINE_PACKED;     /* 1e Next 4 values set by SendMessage */
  36   WPARAM16  wParam;                 /* 22 */
  37   UINT16    msg;                    /* 24 */
  38   HWND16    hWnd;                   /* 26 */
  39   DWORD     SendMessageReturn;      /* 28 Return value for SendMessage */
  40   WORD      wPostQMsg;              /* 2c PostQuitMessage flag */
  41   WORD      wExitCode;              /* 2e PostQuitMessage exit code */
  42   WORD      flags;                  /* 30 Queue flags */
  43   WORD      reserved3[2];           /* 32 Unknown */
  44   WORD      wWinVersion;            /* 36 Expected Windows version */
  45   HQUEUE16  InSendMessageHandle;    /* 38 Queue of task that sent a message */
  46   HTASK16   hSendingTask;           /* 3a Handle of task that sent a message */
  47   HTASK16   hPrevSendingTask;       /* 3c Handle of previous sender */
  48   WORD      wPaintCount;            /* 3e Number of WM_PAINT needed */
  49   WORD      wTimerCount;            /* 40 Number of timers for this task */
  50   WORD      changeBits;             /* 42 Changed wake-up bits */
  51   WORD      wakeBits;               /* 44 Queue wake-up bits */
  52   WORD      wakeMask;               /* 46 Queue wake-up mask */
  53   WORD      SendMsgReturnPtrs[3];   /* 48 Near ptr to return values (?) */
  54   HANDLE16  hCurHook;               /* 4e Current hook */
  55   HANDLE16  hooks[WH_NB_HOOKS];     /* 50 Task hooks list */
  56   WORD      reserved4[3];           /* 68 Unknown */
  57   QMSG      messages[1];            /* 6e Queue messages */
  58 } MESSAGEQUEUE;
  59
  60 #pragma pack(4)
  61
  62 /* Extra (undocumented) queue wake bits; not sure about the values */
  63 #define QS_SMRESULT      0x0100  /* Queue has a SendMessage() result */
  64 #define QS_SMPARAMSFREE  0x0200  /* SendMessage() parameters are available */
  65
  66 /* Queue flags */
  67 #define QUEUE_FLAG_REPLIED  0x0001  /* Replied to a SendMessage() */
  68
  69 extern void QUEUE_DumpQueue( HQUEUE16 hQueue );
  70 extern void QUEUE_WalkQueues(void);
  71 extern MESSAGEQUEUE *QUEUE_GetSysQueue(void);
  72 extern void QUEUE_SetWakeBit( MESSAGEQUEUE *queue, WORD bit );
  73 extern void QUEUE_ClearWakeBit( MESSAGEQUEUE *queue, WORD bit );
  74 extern void QUEUE_ReceiveMessage( MESSAGEQUEUE *queue );
  75 extern void QUEUE_WaitBits( WORD bits );
  76 extern void QUEUE_IncPaintCount( HQUEUE16 hQueue );
  77 extern void QUEUE_DecPaintCount( HQUEUE16 hQueue );
  78 extern void QUEUE_IncTimerCount( HQUEUE16 hQueue );
  79 extern void QUEUE_DecTimerCount( HQUEUE16 hQueue );
  80 extern BOOL32 QUEUE_CreateSysMsgQueue( int size );
  81 extern BOOL32 QUEUE_DeleteMsgQueue( HQUEUE16 hQueue );
  82 extern HTASK16 QUEUE_GetQueueTask( HQUEUE16 hQueue );
  83 extern BOOL32 QUEUE_AddMsg( HQUEUE16 hQueue, MSG16 * msg, DWORD extraInfo );
  84 extern int QUEUE_FindMsg( MESSAGEQUEUE * msgQueue, HWND32 hwnd,
  85                           int first, int last );
  86 extern void QUEUE_RemoveMsg( MESSAGEQUEUE * msgQueue, int pos );
  87 extern void hardware_event( WORD message, WORD wParam, LONG lParam,
  88                             int xPos, int yPos, DWORD time, DWORD extraInfo );
  89
  90 #endif  /* __WINE_QUEUE_H */