win32ss/user/ntuser/msgqueue.h

   1 #pragma once
   2
   3 #define MSQ_HUNG        5000
   4 #define MSQ_NORMAL      0
   5 #define MSQ_ISHOOK      1
   6 #define MSQ_INJECTMODULE 2
   7
   8 typedef struct _USER_MESSAGE
   9 {
  10   LIST_ENTRY ListEntry;
  11   MSG Msg;
  12   DWORD QS_Flags;
  13   LONG_PTR ExtraInfo;
  14   DWORD dwQEvent;
  15   PTHREADINFO pti;
  16 } USER_MESSAGE, *PUSER_MESSAGE;
  17
  18 struct _USER_MESSAGE_QUEUE;
  19
  20 typedef struct _USER_SENT_MESSAGE
  21 {
  22   LIST_ENTRY ListEntry;
  23   MSG Msg;
  24   DWORD QS_Flags;  // Original QS bits used to create this message.
  25   PKEVENT pkCompletionEvent;
  26   LRESULT lResult;
  27   DWORD flags;
  28   PTHREADINFO ptiSender;
  29   PTHREADINFO ptiReceiver;
  30   SENDASYNCPROC CompletionCallback;
  31   PTHREADINFO ptiCallBackSender;
  32   ULONG_PTR CompletionCallbackContext;
  33   INT HookMessage;
  34   BOOL HasPackedLParam;
  35   KEVENT CompletionEvent;
  36 } USER_SENT_MESSAGE, *PUSER_SENT_MESSAGE;
  37
  38 #define SMF_RECEIVERDIED    0x00000002
  39 #define SMF_SENDERDIED      0x00000004
  40 #define SMF_RECEIVERFREE    0x00000008
  41 #define SMF_RECEIVEDMESSAGE 0x00000010
  42 #define SMF_RECEIVERBUSY    0x00004000
  43
  44 typedef struct _USER_MESSAGE_QUEUE
  45 {
  46   /* Reference counter, only access this variable with interlocked functions! */
  47   LONG References;
  48
  49   /* Desktop that the message queue is attached to */
  50   struct _DESKTOP *Desktop;
  51
  52   PTHREADINFO ptiSysLock;
  53   ULONG_PTR   idSysLock;
  54   ULONG_PTR   idSysPeek;
  55   PTHREADINFO ptiMouse;
  56   PTHREADINFO ptiKeyboard;
  57
  58   /* Queue for hardware messages for the queue. */
  59   LIST_ENTRY HardwareMessagesListHead;
  60   /* Last click message for translating double clicks */
  61   MSG msgDblClk;
  62   /* Current capture window for this queue. */
  63   PWND spwndCapture;
  64   /* Current window with focus (ie. receives keyboard input) for this queue. */
  65   PWND spwndFocus;
  66   /* Current active window for this queue. */
  67   PWND spwndActive;
  68   PWND spwndActivePrev;
  69   /* Current move/size window for this queue */
  70   HWND MoveSize;
  71   /* Current menu owner window for this queue */
  72   HWND MenuOwner;
  73   /* Identifes the menu state */
  74   BYTE MenuState;
  75   /* Message Queue Flags */
  76   DWORD QF_flags;
  77   DWORD cThreads; // Shared message queue counter.
  78
  79   /* Extra message information */
  80   LPARAM ExtraInfo;
  81
  82   /* State of each key */
  83   BYTE afKeyRecentDown[256 / 8]; // 1 bit per key
  84   BYTE afKeyState[256 * 2 / 8]; // 2 bits per key
  85
  86   /* Showing cursor counter (value>=0 - cursor visible, value<0 - cursor hidden) */
  87   INT iCursorLevel;
  88   /* Cursor object */
  89   PCURICON_OBJECT CursorObject;
  90
  91   /* Caret information for this queue */
  92   THRDCARETINFO CaretInfo;
  93 } USER_MESSAGE_QUEUE, *PUSER_MESSAGE_QUEUE;
  94
  95 #define QF_UPDATEKEYSTATE         0x00000001
  96 #define QF_FMENUSTATUSBREAK       0x00000004
  97 #define QF_FMENUSTATUS            0x00000008
  98 #define QF_FF10STATUS             0x00000010
  99 #define QF_MOUSEMOVED             0x00000020
 100 #define QF_ACTIVATIONCHANGE       0x00000040
 101 #define QF_TABSWITCHING           0x00000080
 102 #define QF_KEYSTATERESET          0x00000100
 103 #define QF_INDESTROY              0x00000200
 104 #define QF_LOCKNOREMOVE           0x00000400
 105 #define QF_FOCUSNULLSINCEACTIVE   0x00000800
 106 #define QF_DIALOGACTIVE           0x00004000
 107 #define QF_EVENTDEACTIVATEREMOVED 0x00008000
 108 #define QF_TRACKMOUSELEAVE        0x00020000
 109 #define QF_TRACKMOUSEHOVER        0x00040000
 110 #define QF_TRACKMOUSEFIRING       0x00080000
 111 #define QF_CAPTURELOCKED          0x00100000
 112 #define QF_ACTIVEWNDTRACKING      0x00200000
 113
 114 /* Internal messages codes */
 115 enum internal_event_message
 116 {
 117     WM_ASYNC_SHOWWINDOW = 0x80000000,
 118     WM_ASYNC_SETWINDOWPOS,
 119     WM_ASYNC_SETACTIVEWINDOW,
 120     WM_ASYNC_DESTROYWINDOW
 121 };
 122
 123 #define POSTEVENT_DAW 4
 124 #define POSTEVENT_SAW 5
 125 #define POSTEVENT_NWE 14
 126 #define POSTEVENT_NONE 0xFFFF
 127
 128 extern LIST_ENTRY usmList;
 129
 130 BOOL FASTCALL MsqIsHung(PTHREADINFO pti);
 131 VOID CALLBACK HungAppSysTimerProc(HWND,UINT,UINT_PTR,DWORD);
 132 NTSTATUS FASTCALL co_MsqSendMessage(PTHREADINFO ptirec,
 133            HWND Wnd, UINT Msg, WPARAM wParam, LPARAM lParam,
 134            UINT uTimeout, BOOL Block, INT HookMessage, ULONG_PTR *uResult);
 135 PUSER_MESSAGE FASTCALL MsqCreateMessage(LPMSG Msg);
 136 VOID FASTCALL MsqDestroyMessage(PUSER_MESSAGE Message);
 137 VOID FASTCALL MsqPostMessage(PTHREADINFO, MSG*, BOOLEAN, DWORD, DWORD, LONG_PTR);
 138 VOID FASTCALL MsqPostQuitMessage(PTHREADINFO pti, ULONG ExitCode);
 139 BOOLEAN APIENTRY
 140 MsqPeekMessage(IN PTHREADINFO pti,
 141                       IN BOOLEAN Remove,
 142                       IN PWND Window,
 143                       IN UINT MsgFilterLow,
 144                       IN UINT MsgFilterHigh,
 145                       IN UINT QSflags,
 146                       OUT LONG_PTR *ExtraInfo,
 147                       OUT DWORD *dwQEvent,
 148                       OUT PMSG Message);
 149 BOOL APIENTRY
 150 co_MsqPeekHardwareMessage(IN PTHREADINFO pti,
 151                               IN BOOL Remove,
 152                               IN PWND Window,
 153                               IN UINT MsgFilterLow,
 154                               IN UINT MsgFilterHigh,
 155                               IN UINT QSflags,
 156                               OUT MSG* pMsg);
 157 BOOLEAN FASTCALL MsqInitializeMessageQueue(PTHREADINFO, PUSER_MESSAGE_QUEUE);
 158 PUSER_MESSAGE_QUEUE FASTCALL MsqCreateMessageQueue(PTHREADINFO);
 159 VOID FASTCALL MsqCleanupThreadMsgs(PTHREADINFO);
 160 VOID FASTCALL MsqDestroyMessageQueue(_In_ PTHREADINFO pti);
 161 INIT_FUNCTION NTSTATUS NTAPI MsqInitializeImpl(VOID);
 162 BOOLEAN FASTCALL co_MsqDispatchOneSentMessage(_In_ PTHREADINFO pti);
 163 NTSTATUS FASTCALL
 164 co_MsqWaitForNewMessages(PTHREADINFO pti, PWND WndFilter,
 165                       UINT MsgFilterMin, UINT MsgFilterMax);
 166 VOID FASTCALL MsqIncPaintCountQueue(PTHREADINFO);
 167 VOID FASTCALL MsqDecPaintCountQueue(PTHREADINFO);
 168 LRESULT FASTCALL co_IntSendMessage(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam);
 169 LRESULT FASTCALL co_IntPostOrSendMessage(HWND hWnd, UINT Msg, WPARAM wParam, LPARAM lParam);
 170 LRESULT FASTCALL
 171 co_IntSendMessageTimeout(HWND hWnd,
 172                       UINT Msg,
 173                       WPARAM wParam,
 174                       LPARAM lParam,
 175                       UINT uFlags,
 176                       UINT uTimeout,
 177                       ULONG_PTR *uResult);
 178
 179 BOOL FASTCALL UserSendNotifyMessage( HWND hWnd,UINT Msg,WPARAM wParam,LPARAM lParam );
 180 LRESULT FASTCALL co_IntSendMessageNoWait(HWND hWnd,
 181                         UINT Msg,
 182                         WPARAM wParam,
 183                         LPARAM lParam);
 184 LRESULT FASTCALL
 185 co_IntSendMessageWithCallBack(HWND hWnd,
 186                               UINT Msg,
 187                               WPARAM wParam,
 188                               LPARAM lParam,
 189                               SENDASYNCPROC CompletionCallback,
 190                               ULONG_PTR CompletionCallbackContext,
 191                               ULONG_PTR *uResult);
 192 BOOL FASTCALL
 193 co_MsqSendMessageAsync(PTHREADINFO ptiReceiver,
 194                        HWND hwnd,
 195                        UINT Msg,
 196                        WPARAM wParam,
 197                        LPARAM lParam,
 198                        SENDASYNCPROC CompletionCallback,
 199                        ULONG_PTR CompletionCallbackContext,
 200                        BOOL HasPackedLParam,
 201                        INT HookMessage);
 202
 203 VOID FASTCALL IntCoalesceMouseMove(PTHREADINFO);
 204 LRESULT FASTCALL IntDispatchMessage(MSG* Msg);
 205 BOOL FASTCALL IntTranslateKbdMessage(LPMSG lpMsg, UINT flags);
 206 VOID FASTCALL co_MsqInsertMouseMessage(MSG* Msg, DWORD flags, ULONG_PTR dwExtraInfo, BOOL Hook);
 207 BOOL FASTCALL MsqIsClkLck(LPMSG Msg, BOOL Remove);
 208 BOOL FASTCALL MsqIsDblClk(LPMSG Msg, BOOL Remove);
 209 HWND FASTCALL MsqSetStateWindow(PTHREADINFO pti, ULONG Type, HWND hWnd);
 210 BOOL APIENTRY IntInitMessagePumpHook(VOID);
 211 BOOL APIENTRY IntUninitMessagePumpHook(VOID);
 212
 213 LPARAM FASTCALL MsqSetMessageExtraInfo(LPARAM lParam);
 214 LPARAM FASTCALL MsqGetMessageExtraInfo(VOID);
 215 VOID APIENTRY MsqRemoveWindowMessagesFromQueue(PWND pWindow);
 216
 217 #define IntReferenceMessageQueue(MsgQueue) \
 218   InterlockedIncrement(&(MsgQueue)->References)
 219
 220 #define IntDereferenceMessageQueue(MsgQueue) \
 221   do { \
 222     if(InterlockedDecrement(&(MsgQueue)->References) == 0) \
 223     { \
 224       TRACE("Free message queue 0x%p\n", (MsgQueue)); \
 225       ExFreePoolWithTag((MsgQueue), USERTAG_Q); \
 226     } \
 227   } while(0)
 228
 229 #define IS_BTN_MESSAGE(message,code) \
 230   ((message) == WM_LBUTTON##code || \
 231    (message) == WM_MBUTTON##code || \
 232    (message) == WM_RBUTTON##code || \
 233    (message) == WM_XBUTTON##code || \
 234    (message) == WM_NCLBUTTON##code || \
 235    (message) == WM_NCMBUTTON##code || \
 236    (message) == WM_NCRBUTTON##code || \
 237    (message) == WM_NCXBUTTON##code )
 238
 239 #define WM_NCMOUSEFIRST WM_NCMOUSEMOVE
 240 #define WM_NCMOUSELAST  (WM_NCMOUSEFIRST+(WM_MOUSELAST-WM_MOUSEFIRST))
 241
 242 #define IS_MOUSE_MESSAGE(message) \
 243     ((message >= WM_NCMOUSEFIRST && message <= WM_NCMOUSELAST) || \
 244             (message >= WM_MOUSEFIRST && message <= WM_MOUSELAST))
 245
 246 #define IS_KBD_MESSAGE(message) \
 247     (message >= WM_KEYFIRST && message <= WM_KEYLAST)
 248
 249 HANDLE FASTCALL IntMsqSetWakeMask(DWORD WakeMask);
 250 BOOL FASTCALL IntMsqClearWakeMask(VOID);
 251
 252 static __inline LONG
 253 MsqCalculateMessageTime(IN PLARGE_INTEGER TickCount)
 254 {
 255     return (LONG)(TickCount->QuadPart * (KeQueryTimeIncrement() / 10000));
 256 }
 257
 258 VOID FASTCALL IdlePing(VOID);
 259 VOID FASTCALL IdlePong(VOID);
 260 BOOL FASTCALL co_MsqReplyMessage(LRESULT);
 261 VOID FASTCALL MsqWakeQueue(PTHREADINFO,DWORD,BOOL);
 262 VOID FASTCALL ClearMsgBitsMask(PTHREADINFO,UINT);
 263 BOOL FASTCALL IntCallMsgFilter(LPMSG,INT);
 264 WPARAM FASTCALL MsqGetDownKeyState(PUSER_MESSAGE_QUEUE);
 265 BOOL FASTCALL IsThreadSuspended(PTHREADINFO);
 266 PUSER_SENT_MESSAGE FASTCALL AllocateUserMessage(BOOL);
 267 VOID FASTCALL FreeUserMessage(PUSER_SENT_MESSAGE);
 268 VOID FASTCALL MsqDestroyMessage(PUSER_MESSAGE);
 269
 270 int UserShowCursor(BOOL bShow);
 271 PCURICON_OBJECT
 272 FASTCALL
 273 UserSetCursor(PCURICON_OBJECT NewCursor,
 274               BOOL ForceChange);
 275
 276 DWORD APIENTRY IntGetQueueStatus(DWORD);
 277
 278 UINT lParamMemorySize(UINT Msg, WPARAM wParam, LPARAM lParam);
 279
 280 BOOL APIENTRY
 281 co_IntGetPeekMessage( PMSG pMsg,
 282                       HWND hWnd,
 283                       UINT MsgFilterMin,
 284                       UINT MsgFilterMax,
 285                       UINT RemoveMsg,
 286                       BOOL bGMSG );
 287 BOOL FASTCALL
 288 UserPostThreadMessage( PTHREADINFO pti,
 289                        UINT Msg,
 290                        WPARAM wParam,
 291                        LPARAM lParam );
 292 BOOL FASTCALL
 293 co_IntWaitMessage( PWND Window,
 294                    UINT MsgFilterMin,
 295                    UINT MsgFilterMax );
 296
 297 /* EOF */