/*
 * USER private definitions
 *
 * Copyright 1993 Alexandre Julliard
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#ifndef __WINE_USER_PRIVATE_H
#define __WINE_USER_PRIVATE_H

#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "winreg.h"
#include "winternl.h"
#include "wine/windef16.h"
#include "wine/winbase16.h"

extern WORD USER_HeapSel;

static inline HLOCAL16 LOCAL_Alloc( HANDLE16 ds, UINT16 flags, WORD size )
{
    STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
    HANDLE16 oldDS = stack16->ds;
    HLOCAL16 ret;

    stack16->ds = ds;
    ret = LocalAlloc16 (flags, size);
    stack16->ds = oldDS;
    return ret;
}

static inline  HLOCAL16 LOCAL_ReAlloc( HANDLE16 ds, HLOCAL16 handle, WORD size, UINT16 flags )
{
    STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
    HANDLE16 oldDS = stack16->ds;
    HLOCAL16 ret;

    stack16->ds = ds;
    ret = LocalReAlloc16 (handle, size, flags);
    stack16->ds = oldDS;
    return ret;
}

static inline HLOCAL16 LOCAL_Free( HANDLE16 ds, HLOCAL16 handle )
{
    STACK16FRAME* stack16 = MapSL((SEGPTR)NtCurrentTeb()->WOW32Reserved);
    HANDLE16 oldDS = stack16->ds;
    HLOCAL16 ret;

    stack16->ds = ds;
    ret = LocalFree16 (handle);
    stack16->ds = oldDS;
    return ret;
}

#define USER_HEAP_ALLOC(size) \
            ((HANDLE)(ULONG_PTR)LOCAL_Alloc( USER_HeapSel, LMEM_FIXED, (size) ))
#define USER_HEAP_REALLOC(handle,size) \
            ((HANDLE)(ULONG_PTR)LOCAL_ReAlloc( USER_HeapSel, LOWORD(handle), (size), LMEM_FIXED ))
#define USER_HEAP_FREE(handle) \
            LOCAL_Free( USER_HeapSel, LOWORD(handle) )
#define USER_HEAP_LIN_ADDR(handle)  \
         ((handle) ? MapSL(MAKESEGPTR(USER_HeapSel, LOWORD(handle))) : NULL)

#define GET_WORD(ptr)  (*(const WORD *)(ptr))
#define GET_DWORD(ptr) (*(const DWORD *)(ptr))

/* internal messages codes */
enum wine_internal_message
{
    WM_WINE_DESTROYWINDOW = 0x80000000,
    WM_WINE_SETWINDOWPOS,
    WM_WINE_SHOWWINDOW,
    WM_WINE_SETPARENT,
    WM_WINE_SETWINDOWLONG,
    WM_WINE_ENABLEWINDOW,
    WM_WINE_SETACTIVEWINDOW,
    WM_WINE_KEYBOARD_LL_HOOK,
    WM_WINE_MOUSE_LL_HOOK,
    WM_WINE_FIRST_DRIVER_MSG = 0x80001000,  /* range of messages reserved for the USER driver */
    WM_WINE_LAST_DRIVER_MSG = 0x80001fff
};

struct tagCURSORICONINFO;

typedef struct tagUSER_DRIVER {
    /* keyboard functions */
    HKL    (*pActivateKeyboardLayout)(HKL, UINT);
    void   (*pBeep)(void);
    SHORT  (*pGetAsyncKeyState)(INT);
    INT    (*pGetKeyNameText)(LONG, LPWSTR, INT);
    HKL    (*pGetKeyboardLayout)(DWORD);
    UINT   (*pGetKeyboardLayoutList)(INT, HKL *);
    BOOL   (*pGetKeyboardLayoutName)(LPWSTR);
    HKL    (*pLoadKeyboardLayout)(LPCWSTR, UINT);
    UINT   (*pMapVirtualKeyEx)(UINT, UINT, HKL);
    UINT   (*pSendInput)(UINT, LPINPUT, int);
    INT    (*pToUnicodeEx)(UINT, UINT, LPBYTE, LPWSTR, int, UINT, HKL);
    BOOL   (*pUnloadKeyboardLayout)(HKL);
    SHORT  (*pVkKeyScanEx)(WCHAR, HKL);
    /* mouse functions */
    void   (*pSetCursor)(struct tagCURSORICONINFO *);
    BOOL   (*pGetCursorPos)(LPPOINT);
    BOOL   (*pSetCursorPos)(INT,INT);
    /* screen saver functions */
    BOOL   (*pGetScreenSaveActive)(void);
    void   (*pSetScreenSaveActive)(BOOL);
    /* clipboard functions */
    void   (*pAcquireClipboard)(HWND);                     /* Acquire selection */
    BOOL   (*pCountClipboardFormats)(void);                /* Count available clipboard formats */
    void   (*pEmptyClipboard)(BOOL);                       /* Empty clipboard data */
    void   (*pEndClipboardUpdate)(void);                   /* End clipboard update */
    UINT   (*pEnumClipboardFormats)(UINT);                 /* Enumerate clipboard formats */
    BOOL   (*pGetClipboardData)(UINT, HANDLE16*, HANDLE*); /* Get specified selection data */
    INT    (*pGetClipboardFormatName)(UINT, LPWSTR, UINT); /* Get a clipboard format name */
    BOOL   (*pIsClipboardFormatAvailable)(UINT);           /* Check if specified format is available */
    UINT   (*pRegisterClipboardFormat)(LPCWSTR);           /* Register a clipboard format */
    void   (*pResetSelectionOwner)(HWND, BOOL);
    BOOL   (*pSetClipboardData)(UINT, HANDLE16, HANDLE, BOOL);   /* Set specified selection data */
    /* display modes */
    LONG   (*pChangeDisplaySettingsEx)(LPCWSTR,LPDEVMODEW,HWND,DWORD,LPVOID);
    BOOL   (*pEnumDisplaySettingsEx)(LPCWSTR,DWORD,LPDEVMODEW,DWORD);
    /* windowing functions */
    BOOL   (*pCreateDesktopWindow)(HWND);
    BOOL   (*pCreateWindow)(HWND,CREATESTRUCTA*,BOOL);
    void   (*pDestroyWindow)(HWND);
    HDC    (*pGetDCEx)(HWND,HRGN,DWORD);
    DWORD  (*pMsgWaitForMultipleObjectsEx)(DWORD,const HANDLE*,DWORD,DWORD,DWORD);
    INT    (*pReleaseDC)(HWND,HDC,BOOL);
    BOOL   (*pScrollDC)(HDC, INT, INT, const RECT *, const RECT *, HRGN, LPRECT);
    void   (*pSetFocus)(HWND);
    HWND   (*pSetParent)(HWND,HWND);
    BOOL   (*pSetWindowPos)(WINDOWPOS *);
    int    (*pSetWindowRgn)(HWND,HRGN,BOOL);
    void   (*pSetWindowIcon)(HWND,UINT,HICON);
    void   (*pSetWindowStyle)(HWND,DWORD);
    void   (*pSetWindowText)(HWND,LPCWSTR);
    BOOL   (*pShowWindow)(HWND,INT);
    void   (*pSysCommandSizeMove)(HWND,WPARAM);
    HWND   (*pWindowFromDC)(HDC);
    LRESULT (*pWindowMessage)(HWND,UINT,WPARAM,LPARAM);
} USER_DRIVER;

extern const USER_DRIVER *USER_Driver;

extern void USER_unload_driver(void);

struct received_message_info;
struct hook16_queue_info;

/* this is the structure stored in TEB->Win32ClientInfo */
/* no attempt is made to keep the layout compatible with the Windows one */
struct user_thread_info
{
    HANDLE                        server_queue;           /* 00 Handle to server-side queue */
    DWORD                         recursion_count;        /* 04 SendMessage recursion counter */
    HHOOK                         hook;                   /* 08 Current hook */
    struct received_message_info *receive_info;           /* 0c Message being currently received */
    struct hook16_queue_info     *hook16_info;            /* 10 Opaque pointer for 16-bit hook support */
    DWORD                         GetMessageTimeVal;      /* 14 Value for GetMessageTime */
    DWORD                         GetMessagePosVal;       /* 18 Value for GetMessagePos */
    DWORD                         GetMessageExtraInfoVal; /* 1c Value for GetMessageExtraInfo */
    HCURSOR                       cursor;                 /* 20 Current cursor */
    INT                           cursor_count;           /* 24 Cursor show count */
    UINT                          active_hooks;           /* 28 Bitmap of active hooks */
    HWND                          desktop;                /* 2c Desktop window */
                                                          /* 30-7c Available for more data */
};

static inline struct user_thread_info *get_user_thread_info(void)
{
    return (struct user_thread_info *)NtCurrentTeb()->Win32ClientInfo;
}

/* check if hwnd is a broadcast magic handle */
static inline BOOL is_broadcast( HWND hwnd )
{
    return (hwnd == HWND_BROADCAST || hwnd == HWND_TOPMOST);
}

extern HMODULE user32_module;
extern DWORD USER16_AlertableWait;
extern HBRUSH SYSCOLOR_55AABrush;

extern BOOL CLIPBOARD_ReleaseOwner(void);
extern BOOL FOCUS_MouseActivate( HWND hwnd );
extern BOOL HOOK_IsHooked( INT id );
extern LRESULT MSG_SendInternalMessageTimeout( DWORD dest_pid, DWORD dest_tid,
                                               UINT msg, WPARAM wparam, LPARAM lparam,
                                               UINT flags, UINT timeout, PDWORD_PTR res_ptr );
extern HPEN SYSCOLOR_GetPen( INT index );
extern void SYSPARAMS_Init(void);
extern void USER_CheckNotLock(void);
extern BOOL USER_IsExitingThread( DWORD tid );

/* message spy definitions */

#define SPY_DISPATCHMESSAGE16     0x0100
#define SPY_DISPATCHMESSAGE       0x0101
#define SPY_SENDMESSAGE16         0x0102
#define SPY_SENDMESSAGE           0x0103
#define SPY_DEFWNDPROC16          0x0104
#define SPY_DEFWNDPROC            0x0105

#define SPY_RESULT_OK16           0x0000
#define SPY_RESULT_OK             0x0001
#define SPY_RESULT_INVALIDHWND16  0x0002
#define SPY_RESULT_INVALIDHWND    0x0003
#define SPY_RESULT_DEFWND16       0x0004
#define SPY_RESULT_DEFWND         0x0005

extern const char *SPY_GetMsgName( UINT msg, HWND hWnd );
extern const char *SPY_GetVKeyName(WPARAM wParam);
extern void SPY_EnterMessage( INT iFlag, HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam );
extern void SPY_ExitMessage( INT iFlag, HWND hwnd, UINT msg,
                             LRESULT lReturn, WPARAM wParam, LPARAM lParam );
extern int SPY_Init(void);

/* HANDLE16 <-> HANDLE conversions */
#define HCURSOR_16(h32)    (LOWORD(h32))
#define HICON_16(h32)      (LOWORD(h32))
#define HINSTANCE_16(h32)  (LOWORD(h32))

#define HCURSOR_32(h16)    ((HCURSOR)(ULONG_PTR)(h16))
#define HICON_32(h16)      ((HICON)(ULONG_PTR)(h16))
#define HINSTANCE_32(h16)  ((HINSTANCE)(ULONG_PTR)(h16))
#define HMODULE_32(h16)    ((HMODULE)(ULONG_PTR)(h16))

#include "pshpack1.h"

typedef struct
{
    BYTE   bWidth;
    BYTE   bHeight;
    BYTE   bColorCount;
    BYTE   bReserved;
} ICONRESDIR;

typedef struct
{
    WORD   wWidth;
    WORD   wHeight;
} CURSORDIR;

typedef struct
{   union
    { ICONRESDIR icon;
      CURSORDIR  cursor;
    } ResInfo;
    WORD   wPlanes;
    WORD   wBitCount;
    DWORD  dwBytesInRes;
    WORD   wResId;
} CURSORICONDIRENTRY;

typedef struct
{
    WORD                idReserved;
    WORD                idType;
    WORD                idCount;
    CURSORICONDIRENTRY  idEntries[1];
} CURSORICONDIR;

#include "poppack.h"

extern void CURSORICON_FreeModuleIcons( HMODULE16 hModule );

#endif /* __WINE_USER_PRIVATE_H */