Sweden-Number/dlls/win32u/clipboard.c

/*
 * WIN32 clipboard implementation
 *
 * Copyright 1994 Martin Ayotte
 * Copyright 1996 Alex Korobka
 * Copyright 1999 Noel Borthwick
 * Copyright 2003 Ulrich Czekalla for CodeWeavers
 * Copyright 2016 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 "win32u_private.h"
#include "wine/server.h"
#include "wine/debug.h"

WINE_DEFAULT_DEBUG_CHANNEL(clipboard);


/**************************************************************************
 *           NtUserCountClipboardFormats    (win32u.@)
 */
INT WINAPI NtUserCountClipboardFormats(void)
{
    INT count = 0;

    user_driver->pUpdateClipboard();

    SERVER_START_REQ( get_clipboard_formats )
    {
        wine_server_call( req );
        count = reply->count;
    }
    SERVER_END_REQ;

    TRACE( "returning %d\n", count );
    return count;
}

/**************************************************************************
 *	     NtUserGetClipboardFormatName    (win32u.@)
 */
INT WINAPI NtUserGetClipboardFormatName( UINT format, WCHAR *buffer, INT maxlen )
{
    char buf[sizeof(ATOM_BASIC_INFORMATION) + 255 * sizeof(WCHAR)];
    ATOM_BASIC_INFORMATION *abi = (ATOM_BASIC_INFORMATION *)buf;
    UINT length = 0;

    if (format < MAXINTATOM || format > 0xffff) return 0;
    if (maxlen <= 0)
    {
        SetLastError( ERROR_MORE_DATA );
        return 0;
    }
    if (!set_ntstatus( NtQueryInformationAtom( format, AtomBasicInformation,
                                               buf, sizeof(buf), NULL )))
        return 0;

    length = min( abi->NameLength / sizeof(WCHAR), maxlen - 1 );
    if (length) memcpy( buffer, abi->Name, length * sizeof(WCHAR) );
    buffer[length] = 0;
    return length;
}