wine/dlls/win32u/winstation.c

/*
 * Window stations and desktops
 *
 * Copyright 2002 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
 */

#if 0
#pragma makedep unix
#endif

#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "ntuser.h"
#include "winternl.h"
#include "wine/server.h"
#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(winstation);


/***********************************************************************
 *           NtUserCreateWindowStation  (win32u.@)
 */
HWINSTA WINAPI NtUserCreateWindowStation( OBJECT_ATTRIBUTES *attr, ACCESS_MASK access, ULONG arg3,
                                          ULONG arg4, ULONG arg5, ULONG arg6, ULONG arg7 )
{
    HANDLE ret;

    if (attr->ObjectName->Length >= MAX_PATH * sizeof(WCHAR))
    {
        SetLastError( ERROR_FILENAME_EXCED_RANGE );
        return 0;
    }

    SERVER_START_REQ( create_winstation )
    {
        req->flags      = 0;
        req->access     = access;
        req->attributes = attr->Attributes;
        req->rootdir    = wine_server_obj_handle( attr->RootDirectory );
        wine_server_add_data( req, attr->ObjectName->Buffer, attr->ObjectName->Length );
        wine_server_call_err( req );
        ret = wine_server_ptr_handle( reply->handle );
    }
    SERVER_END_REQ;
    return ret;
}

/***********************************************************************
 *           NtUserCloseWindowStation  (win32u.@)
 */
BOOL WINAPI NtUserCloseWindowStation( HWINSTA handle )
{
    BOOL ret;
    SERVER_START_REQ( close_winstation )
    {
        req->handle = wine_server_obj_handle( handle );
        ret = !wine_server_call_err( req );
    }
    SERVER_END_REQ;
    return ret;
}

/***********************************************************************
 *           NtUSerGetProcessWindowStation  (win32u.@)
 */
HWINSTA WINAPI NtUserGetProcessWindowStation(void)
{
    HWINSTA ret = 0;

    SERVER_START_REQ( get_process_winstation )
    {
        if (!wine_server_call_err( req ))
            ret = wine_server_ptr_handle( reply->handle );
    }
    SERVER_END_REQ;
    return ret;
}

/***********************************************************************
 *           NtUserSetProcessWindowStation  (win32u.@)
 */
BOOL WINAPI NtUserSetProcessWindowStation( HWINSTA handle )
{
    BOOL ret;

    SERVER_START_REQ( set_process_winstation )
    {
        req->handle = wine_server_obj_handle( handle );
        ret = !wine_server_call_err( req );
    }
    SERVER_END_REQ;
    return ret;
}

/***********************************************************************
 *           NtUserCloseDesktop  (win32u.@)
 */
BOOL WINAPI NtUserCloseDesktop( HDESK handle )
{
    BOOL ret;
    SERVER_START_REQ( close_desktop )
    {
        req->handle = wine_server_obj_handle( handle );
        ret = !wine_server_call_err( req );
    }
    SERVER_END_REQ;
    return ret;
}

/***********************************************************************
 *           NtUserGetThreadDesktop   (win32u.@)
 */
HDESK WINAPI NtUserGetThreadDesktop( DWORD thread )
{
    HDESK ret = 0;

    SERVER_START_REQ( get_thread_desktop )
    {
        req->tid = thread;
        if (!wine_server_call_err( req )) ret = wine_server_ptr_handle( reply->handle );
    }
    SERVER_END_REQ;
    return ret;
}

/***********************************************************************
 *           NtUserSetThreadDesktop   (win32u.@)
 */
BOOL WINAPI NtUserSetThreadDesktop( HDESK handle )
{
    BOOL ret;

    SERVER_START_REQ( set_thread_desktop )
    {
        req->handle = wine_server_obj_handle( handle );
        ret = !wine_server_call_err( req );
    }
    SERVER_END_REQ;

    /* FIXME: reset uset thread info */
    return ret;
}

/***********************************************************************
 *           NtUserOpenInputDesktop   (win32u.@)
 */
HDESK WINAPI NtUserOpenInputDesktop( DWORD flags, BOOL inherit, ACCESS_MASK access )
{
    HANDLE ret = 0;

    TRACE( "(%x,%i,%x)\n", flags, inherit, access );

    if (flags)
        FIXME( "partial stub flags %08x\n", flags );

    SERVER_START_REQ( open_input_desktop )
    {
        req->flags      = flags;
        req->access     = access;
        req->attributes = inherit ? OBJ_INHERIT : 0;
        if (!wine_server_call_err( req )) ret = wine_server_ptr_handle( reply->handle );
    }
    SERVER_END_REQ;

    return ret;
}

/***********************************************************************
 *           NtUserGetObjectInformation   (win32u.@)
 */
BOOL WINAPI NtUserGetObjectInformation( HANDLE handle, INT index, void *info,
                                        DWORD len, DWORD *needed )
{
    BOOL ret;

    static const WCHAR desktopW[] = {'D','e','s','k','t','o','p',0};
    static const WCHAR window_stationW[] = {'W','i','n','d','o','w','S','t','a','t','i','o','n',0};

    switch(index)
    {
    case UOI_FLAGS:
        {
            USEROBJECTFLAGS *obj_flags = info;
            if (needed) *needed = sizeof(*obj_flags);
            if (len < sizeof(*obj_flags))
            {
                SetLastError( ERROR_BUFFER_OVERFLOW );
                return FALSE;
            }
            SERVER_START_REQ( set_user_object_info )
            {
                req->handle = wine_server_obj_handle( handle );
                req->flags  = 0;
                ret = !wine_server_call_err( req );
                if (ret)
                {
                    /* FIXME: inherit flag */
                    obj_flags->dwFlags = reply->old_obj_flags;
                }
            }
            SERVER_END_REQ;
        }
        return ret;

    case UOI_TYPE:
        SERVER_START_REQ( set_user_object_info )
        {
            req->handle = wine_server_obj_handle( handle );
            req->flags  = 0;
            ret = !wine_server_call_err( req );
            if (ret)
            {
                size_t size = reply->is_desktop ? sizeof(desktopW) : sizeof(window_stationW);
                if (needed) *needed = size;
                if (len < size)
                {
                    SetLastError( ERROR_INSUFFICIENT_BUFFER );
                    ret = FALSE;
                }
                else memcpy( info, reply->is_desktop ? desktopW : window_stationW, size );
            }
        }
        SERVER_END_REQ;
        return ret;

    case UOI_NAME:
        {
            WCHAR buffer[MAX_PATH];
            SERVER_START_REQ( set_user_object_info )
            {
                req->handle = wine_server_obj_handle( handle );
                req->flags  = 0;
                wine_server_set_reply( req, buffer, sizeof(buffer) - sizeof(WCHAR) );
                ret = !wine_server_call_err( req );
                if (ret)
                {
                    size_t size = wine_server_reply_size( reply );
                    buffer[size / sizeof(WCHAR)] = 0;
                    size += sizeof(WCHAR);
                    if (needed) *needed = size;
                    if (len < size)
                    {
                        SetLastError( ERROR_INSUFFICIENT_BUFFER );
                        ret = FALSE;
                    }
                    else memcpy( info, buffer, size );
                }
            }
            SERVER_END_REQ;
        }
        return ret;

    case UOI_USER_SID:
        FIXME( "not supported index %d\n", index );
        /* fall through */
    default:
        SetLastError( ERROR_INVALID_PARAMETER );
        return FALSE;
    }
}

/***********************************************************************
 *           NtUserSetObjectInformation   (win32u.@)
 */
BOOL WINAPI NtUserSetObjectInformation( HANDLE handle, INT index, void *info, DWORD len )
{
    BOOL ret;
    const USEROBJECTFLAGS *obj_flags = info;

    if (index != UOI_FLAGS || !info || len < sizeof(*obj_flags))
    {
        SetLastError( ERROR_INVALID_PARAMETER );
        return FALSE;
    }
    /* FIXME: inherit flag */
    SERVER_START_REQ( set_user_object_info )
    {
        req->handle    = wine_server_obj_handle( handle );
        req->flags     = SET_USER_OBJECT_SET_FLAGS;
        req->obj_flags = obj_flags->dwFlags;
        ret = !wine_server_call_err( req );
    }
    SERVER_END_REQ;
    return ret;
}