include/msdadc.idl

   1 /*
   2  * Copyright 2009 Huw Davies
   3  *
   4  * This library is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU Lesser General Public
   6  * License as published by the Free Software Foundation; either
   7  * version 2.1 of the License, or (at your option) any later version.
   8  *
   9  * This library is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public
  15  * License along with this library; if not, write to the Free Software
  16  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  17  */
  18
  19 import "oaidl.idl";
  20 import "ocidl.idl";
  21 import "oledb.idl";
  22
  23 [
  24     object,
  25     pointer_default(unique),
  26     uuid(0c733a8d-2a1c-11ce-ade5-00aa0044773d)
  27 ]
  28 interface IDataConvert : IUnknown
  29 {
  30     typedef DWORD DBDATACONVERT;
  31
  32     enum DBDATACONVERTENUM
  33     {
  34         DBDATACONVERT_DEFAULT = 0,
  35         DBDATACONVERT_SETDATABEHAVIOR = 1,
  36         DBDATACONVERT_LENGTHFROMNTS = 2,
  37         DBDATACONVERT_DSTISFIXEDLENGTH = 4,
  38         DBDATACONVERT_DECIMALSCALE = 8
  39     };
  40
  41     [local] HRESULT DataConvert([in] DBTYPE wSrcType,
  42                                 [in] DBTYPE wDstType,
  43                                 [in] DBLENGTH cbSrcLength,
  44                                 [in, out] DBLENGTH *pcbDstLength,
  45                                 [in] void *pSrc,
  46                                 [out] void *pDst,
  47                                 [in] DBLENGTH cbDstMaxLength,
  48                                 [in] DBSTATUS dbsSrcStatus,
  49                                 [out] DBSTATUS *pdbsDstStatus,
  50                                 [in] BYTE bPrecision,
  51                                 [in] BYTE bScale,
  52                                 [in] DBDATACONVERT dwFlags);
  53
  54
  55     HRESULT CanConvert([in] DBTYPE wSrcType,
  56                        [in] DBTYPE wDstType);
  57
  58
  59     [local] HRESULT GetConversionSize([in] DBTYPE wSrcType,
  60                                       [in] DBTYPE wDstType,
  61                                       [in] DBLENGTH *pcbSrcLength,
  62                                       [out] DBLENGTH *pcbDstLength,
  63                                       [in, size_is(*pcbSrcLength)] void *pSrc);
  64 }
  65
  66 [
  67     object,
  68     pointer_default(unique),
  69     uuid(0c733a9c-2a1c-11ce-ade5-00aa0044773d)
  70 ]
  71 interface IDCInfo : IUnknown
  72 {
  73     typedef DWORD DCINFOTYPE;
  74
  75     enum DCINFOTYPEENUM
  76     {
  77         DCINFOTYPE_VERSION = 1
  78     };
  79
  80     typedef struct tagDCINFO
  81     {
  82         DCINFOTYPE eInfoType;
  83         VARIANT vData;
  84     } DCINFO;
  85
  86     HRESULT GetInfo([in] ULONG cInfo,
  87                     [in, size_is(cInfo)] DCINFOTYPE rgeInfoType[],
  88                     [out, size_is(cInfo)] DCINFO **prgInfo);
  89
  90     HRESULT SetInfo([in] ULONG cInfo,
  91                     [in, size_is(cInfo)] DCINFO prgInfo[]);
  92 }