include/message.h

   1 /*
   2  * Message queues definitions
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  */
   6
   7 #ifndef MESSAGE_H
   8 #define MESSAGE_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     MSG     msg;
  17 } QMSG;
  18
  19
  20 typedef struct tagMESSAGEQUEUE
  21 {
  22   WORD      next;
  23   WORD      hTask;                  /* hTask owning the queue                */
  24   WORD      msgSize;                /* Size of messages in the queue         */
  25   WORD      msgCount;               /* Number of waiting messages            */
  26   WORD      nextMessage;            /* Next message to be retrieved          */
  27   WORD      nextFreeMessage;        /* Next available slot in the queue      */
  28   WORD      queueSize;              /* Size of the queue                     */
  29   DWORD     GetMessageTimeVal;      /* Value returned by GetMessageTime      */
  30   DWORD     GetMessagePosVal;       /* Value returned by GetMessagePos       */
  31   DWORD     GetMessageExtraInfoVal; /* Value returned by GetMessageExtraInfo */
  32   DWORD     lParam;                 /* Next four values set by SendMessage   */
  33   WORD      wParam;
  34   WORD      msg;
  35   WORD      hWnd;
  36   WORD      wPostQMsg;              /* PostQuitMessage flag                  */
  37   WORD      wExitCode;              /* PostQuitMessage exit code             */
  38   WORD      InSendMessageHandle;    /* Handle of task that sent a message    */
  39   WORD      wPaintCount;            /* Number of WM_PAINT needed             */
  40   WORD      wTimerCount;            /* Number of timers for this application */
  41   WORD      tempStatus;             /* State reset by GetQueueStatus         */
  42   WORD      status;                 /* Queue state                           */
  43   QMSG      messages[1];            /* Queue messages                        */
  44 } MESSAGEQUEUE;
  45
  46
  47 extern void MSG_IncPaintCount( HANDLE hQueue );
  48 extern void MSG_DecPaintCount( HANDLE hQueue );
  49 extern void MSG_IncTimerCount( HANDLE hQueue );
  50 extern void MSG_DecTimerCount( HANDLE hQueue );
  51 extern void MSG_Synchronize();
  52 extern BOOL MSG_CreateSysMsgQueue( int size );
  53 extern void hardware_event( WORD message, WORD wParam, LONG lParam,
  54                             int xPos, int yPos, DWORD time, DWORD extraInfo );
  55 extern BOOL MSG_GetHardwareMessage( LPMSG msg );
  56
  57 #endif  /* MESSAGE_H */