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 "wine/winuser16.h"
  11 #include "windows.h"
  12
  13   /* Message as stored in the queue (contains the extraInfo field) */
  14 typedef struct tagQMSG
  15 {
  16     DWORD   extraInfo;  /* Only in 3.1 */
  17     MSG16   msg;
  18 } QMSG;
  19
  20 typedef struct
  21 {
  22   LRESULT   lResult;
  23   BOOL16    bPending;
  24 } QSMCTRL;
  25
  26 #pragma pack(1)
  27
  28 typedef struct tagMESSAGEQUEUE
  29 {
  30   HQUEUE16  next;                   /* 00 Next queue */
  31   HTASK16   hTask;                  /* 02 hTask owning the queue */
  32   WORD      msgSize;                /* 04 Size of messages in the queue */
  33   WORD      msgCount;               /* 06 Number of waiting messages */
  34   WORD      nextMessage;            /* 08 Next message to be retrieved */
  35   WORD      nextFreeMessage;        /* 0a Next available slot in the queue */
  36   WORD      queueSize;              /* 0c Size of the queue */
  37   DWORD     GetMessageTimeVal WINE_PACKED;  /* 0e Value for GetMessageTime */
  38   DWORD     GetMessagePosVal WINE_PACKED;   /* 12 Value for GetMessagePos */
  39   HQUEUE16  self;                   /* 16 Handle to self (was: reserved) */
  40   DWORD     GetMessageExtraInfoVal; /* 18 Value for GetMessageExtraInfo */
  41   WORD      wParamHigh;             /* 1c High word of wParam (was: reserved)*/
  42   LPARAM    lParam WINE_PACKED;     /* 1e Next 4 values set by SendMessage */
  43   WPARAM16  wParam;                 /* 22 */
  44   UINT16    msg;                    /* 24 */
  45   HWND16    hWnd;                   /* 26 */
  46   DWORD     SendMessageReturn;      /* 28 Return value for SendMessage */
  47   WORD      wPostQMsg;              /* 2c PostQuitMessage flag */
  48   WORD      wExitCode;              /* 2e PostQuitMessage exit code */
  49   WORD      flags;                  /* 30 Queue flags */
  50   QSMCTRL*  smResultInit;           /* 32 1st LRESULT ptr - was: reserved */
  51   WORD      wWinVersion;            /* 36 Expected Windows version */
  52   HQUEUE16  InSendMessageHandle;    /* 38 Queue of task that sent a message */
  53   HTASK16   hSendingTask;           /* 3a Handle of task that sent a message */
  54   HTASK16   hPrevSendingTask;       /* 3c Handle of previous sender */
  55   WORD      wPaintCount;            /* 3e Number of WM_PAINT needed */
  56   WORD      wTimerCount;            /* 40 Number of timers for this task */
  57   WORD      changeBits;             /* 42 Changed wake-up bits */
  58   WORD      wakeBits;               /* 44 Queue wake-up bits */
  59   WORD      wakeMask;               /* 46 Queue wake-up mask */
  60   QSMCTRL*  smResultCurrent;        /* 48 ptrs to SendMessage() LRESULT - point to */
  61   WORD      SendMsgReturnPtr[1];    /*    values on stack */
  62   HANDLE16  hCurHook;               /* 4e Current hook */
  63   HANDLE16  hooks[WH_NB_HOOKS];     /* 50 Task hooks list */
  64   QSMCTRL*  smResult;               /* 6c 3rd LRESULT ptr - was: reserved */
  65   QMSG      messages[1];            /* 70 Queue messages */
  66 } MESSAGEQUEUE;
  67
  68 #pragma pack(4)
  69
  70 /* Extra (undocumented) queue wake bits - see "Undoc. Windows" */
  71 #define QS_SMRESULT      0x8000  /* Queue has a SendMessage() result */
  72 #define QS_SMPARAMSFREE  0x4000  /* SendMessage() parameters are available */
  73
  74 /* Queue flags */
  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_SetWakeBit( MESSAGEQUEUE *queue, WORD bit );
  85 extern void QUEUE_ClearWakeBit( MESSAGEQUEUE *queue, WORD bit );
  86 extern void QUEUE_ReceiveMessage( MESSAGEQUEUE *queue );
  87 extern void QUEUE_WaitBits( WORD bits );
  88 extern void QUEUE_IncPaintCount( HQUEUE16 hQueue );
  89 extern void QUEUE_DecPaintCount( HQUEUE16 hQueue );
  90 extern void QUEUE_IncTimerCount( HQUEUE16 hQueue );
  91 extern void QUEUE_DecTimerCount( HQUEUE16 hQueue );
  92 extern BOOL32 QUEUE_CreateSysMsgQueue( int size );
  93 extern BOOL32 QUEUE_DeleteMsgQueue( HQUEUE16 hQueue );
  94 extern HTASK16 QUEUE_GetQueueTask( HQUEUE16 hQueue );
  95 extern BOOL32 QUEUE_AddMsg( HQUEUE16 hQueue, MSG16 * msg, DWORD extraInfo );
  96 extern int QUEUE_FindMsg( MESSAGEQUEUE * msgQueue, HWND32 hwnd,
  97                           int first, int last );
  98 extern void QUEUE_RemoveMsg( MESSAGEQUEUE * msgQueue, int pos );
  99 extern void QUEUE_FlushMessages(HQUEUE16);
 100 extern void hardware_event( WORD message, WORD wParam, LONG lParam,
 101                             int xPos, int yPos, DWORD time, DWORD extraInfo );
 102
 103 extern HQUEUE16 WINAPI InitThreadInput( WORD unknown, WORD flags );
 104
 105 #endif  /* __WINE_QUEUE_H */