dlls/propsys/propvar.c

   1 /*
   2  * PropVariant implementation
   3  *
   4  * Copyright 2008 James Hawkins for CodeWeavers
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include <stdarg.h>
  22 #include <stdio.h>
  23
  24 #define NONAMELESSUNION
  25
  26 #include "windef.h"
  27 #include "winbase.h"
  28 #include "winerror.h"
  29 #include "winreg.h"
  30 #include "winuser.h"
  31 #include "shlobj.h"
  32 #include "propvarutil.h"
  33
  34 #include "wine/debug.h"
  35
  36 WINE_DEFAULT_DEBUG_CHANNEL(propsys);
  37
  38 static HRESULT PROPVAR_ConvertFILETIME(PROPVARIANT *ppropvarDest,
  39                                        REFPROPVARIANT propvarSrc, VARTYPE vt)
  40 {
  41     SYSTEMTIME time;
  42
  43     FileTimeToSystemTime(&propvarSrc->u.filetime, &time);
  44
  45     switch (vt)
  46     {
  47         case VT_LPSTR:
  48         {
  49             static const char format[] = "%04d/%02d/%02d:%02d:%02d:%02d.%03d";
  50
  51             ppropvarDest->u.pszVal = HeapAlloc(GetProcessHeap(), 0,
  52                                              lstrlenA(format) + 1);
  53             if (!ppropvarDest->u.pszVal)
  54                 return E_OUTOFMEMORY;
  55
  56             sprintf(ppropvarDest->u.pszVal, format, time.wYear, time.wMonth,
  57                     time.wDay, time.wHour, time.wMinute,
  58                     time.wSecond, time.wMilliseconds);
  59
  60             return S_OK;
  61         }
  62
  63         default:
  64             FIXME("Unhandled target type: %d\n", vt);
  65     }
  66
  67     return E_FAIL;
  68 }
  69
  70 /******************************************************************
  71  *  PropVariantChangeType   (PROPSYS.@)
  72  */
  73 HRESULT WINAPI PropVariantChangeType(PROPVARIANT *ppropvarDest, REFPROPVARIANT propvarSrc,
  74                                      PROPVAR_CHANGE_FLAGS flags, VARTYPE vt)
  75 {
  76     FIXME("(%p, %p, %d, %d, %d): semi-stub!\n", ppropvarDest, propvarSrc,
  77           propvarSrc->vt, flags, vt);
  78
  79     switch (propvarSrc->vt)
  80     {
  81         case VT_FILETIME:
  82             return PROPVAR_ConvertFILETIME(ppropvarDest, propvarSrc, vt);
  83         default:
  84             FIXME("Unhandled source type: %d\n", propvarSrc->vt);
  85     }
  86
  87     return E_FAIL;
  88 }