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shdocvw: Get rid of no longer used DOCHOST_THIS.
[wine.git] / dlls / oledb32 / convert.c
blob203061be1bb089ee91be91e6af4f18d38bfd8d38
1 /* OLE DB Conversion library
2 *
3 * Copyright 2009 Huw Davies
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
18 */
19
20 #include <stdarg.h>
21
22 #define COBJMACROS
23 #define NONAMELESSUNION
24 #define NONAMELESSSTRUCT
25
26 #include "windef.h"
27 #include "winbase.h"
28 #include "winnls.h"
29 #include "ole2.h"
30 #include "msdadc.h"
31 #include "oledberr.h"
32
33 #include "oledb_private.h"
34
35 #include "wine/debug.h"
36
37 WINE_DEFAULT_DEBUG_CHANNEL(oledb);
38
39 typedef struct
40 {
41 IDataConvert IDataConvert_iface;
42 IDCInfo IDCInfo_iface;
43
44 LONG ref;
45
46 UINT version; /* Set by IDCInfo_SetInfo */
47 } convert;
48
49 static inline convert *impl_from_IDataConvert(IDataConvert *iface)
50 {
51 return CONTAINING_RECORD(iface, convert, IDataConvert_iface);
52 }
53
54 static inline convert *impl_from_IDCInfo(IDCInfo *iface)
55 {
56 return CONTAINING_RECORD(iface, convert, IDCInfo_iface);
57 }
58
59 static HRESULT WINAPI convert_QueryInterface(IDataConvert* iface,
60 REFIID riid,
61 void **obj)
62 {
63 convert *This = impl_from_IDataConvert(iface);
64 TRACE("(%p)->(%s, %p)\n", This, debugstr_guid(riid), obj);
65
66 *obj = NULL;
67
68 if(IsEqualIID(riid, &IID_IUnknown) ||
69 IsEqualIID(riid, &IID_IDataConvert))
70 {
71 *obj = iface;
72 }
73 else if(IsEqualIID(riid, &IID_IDCInfo))
74 {
75 *obj = &This->IDCInfo_iface;
76 }
77 else
78 {
79 FIXME("interface %s not implemented\n", debugstr_guid(riid));
80 return E_NOINTERFACE;
81 }
82
83 IDataConvert_AddRef(iface);
84 return S_OK;
85 }
86
87
88 static ULONG WINAPI convert_AddRef(IDataConvert* iface)
89 {
90 convert *This = impl_from_IDataConvert(iface);
91 TRACE("(%p)\n", This);
92
93 return InterlockedIncrement(&This->ref);
94 }
95
96
97 static ULONG WINAPI convert_Release(IDataConvert* iface)
98 {
99 convert *This = impl_from_IDataConvert(iface);
100 LONG ref;
101
102 TRACE("(%p)\n", This);
103
104 ref = InterlockedDecrement(&This->ref);
105 if(ref == 0)
106 {
107 HeapFree(GetProcessHeap(), 0, This);
108 }
109
110 return ref;
111 }
112
113 static int get_length(DBTYPE type)
114 {
115 switch(type)
116 {
117 case DBTYPE_I1:
118 case DBTYPE_UI1:
119 return 1;
120 case DBTYPE_I2:
121 case DBTYPE_UI2:
122 return 2;
123 case DBTYPE_BOOL:
124 return sizeof(VARIANT_BOOL);
125 case DBTYPE_I4:
126 case DBTYPE_UI4:
127 case DBTYPE_R4:
128 return 4;
129 case DBTYPE_I8:
130 case DBTYPE_UI8:
131 case DBTYPE_R8:
132 case DBTYPE_DATE:
133 return 8;
134 case DBTYPE_DBTIMESTAMP:
135 return sizeof(DBTIMESTAMP);
136 case DBTYPE_CY:
137 return sizeof(CY);
138 case DBTYPE_BSTR:
139 return sizeof(BSTR);
140 case DBTYPE_FILETIME:
141 return sizeof(FILETIME);
142 case DBTYPE_GUID:
143 return sizeof(GUID);
144 case DBTYPE_WSTR:
145 case DBTYPE_STR:
146 case DBTYPE_BYREF | DBTYPE_WSTR:
147 return 0;
148 default:
149 FIXME("Unhandled type %04x\n", type);
150 return 0;
151 }
152 }
153
154 static HRESULT WINAPI convert_DataConvert(IDataConvert* iface,
155 DBTYPE src_type, DBTYPE dst_type,
156 DBLENGTH src_len, DBLENGTH *dst_len,
157 void *src, void *dst,
158 DBLENGTH dst_max_len,
159 DBSTATUS src_status, DBSTATUS *dst_status,
160 BYTE precision, BYTE scale,
161 DBDATACONVERT flags)
162 {
163 convert *This = impl_from_IDataConvert(iface);
164 HRESULT hr;
165
166 TRACE("(%p)->(%d, %d, %d, %p, %p, %p, %d, %d, %p, %d, %d, %x)\n", This,
167 src_type, dst_type, src_len, dst_len, src, dst, dst_max_len,
168 src_status, dst_status, precision, scale, flags);
169
170 *dst_status = DBSTATUS_E_BADACCESSOR;
171
172 if(IDataConvert_CanConvert(iface, src_type, dst_type) != S_OK)
173 {
174 return DB_E_UNSUPPORTEDCONVERSION;
175 }
176
177 if(src_type == DBTYPE_STR)
178 {
179 BSTR b;
180 DWORD len;
181
182 if(flags & DBDATACONVERT_LENGTHFROMNTS)
183 len = MultiByteToWideChar(CP_ACP, 0, src, -1, NULL, 0) - 1;
184 else
185 len = MultiByteToWideChar(CP_ACP, 0, src, src_len, NULL, 0);
186 b = SysAllocStringLen(NULL, len);
187 if(!b) return E_OUTOFMEMORY;
188 if(flags & DBDATACONVERT_LENGTHFROMNTS)
189 MultiByteToWideChar(CP_ACP, 0, src, -1, b, len + 1);
190 else
191 MultiByteToWideChar(CP_ACP, 0, src, src_len, b, len);
192
193 hr = IDataConvert_DataConvert(iface, DBTYPE_BSTR, dst_type, 0, dst_len,
194 &b, dst, dst_max_len, src_status, dst_status,
195 precision, scale, flags);
196
197 SysFreeString(b);
198 return hr;
199 }
200
201 if(src_type == DBTYPE_WSTR)
202 {
203 BSTR b;
204
205 if(flags & DBDATACONVERT_LENGTHFROMNTS)
206 b = SysAllocString(src);
207 else
208 b = SysAllocStringLen(src, src_len / 2);
209 if(!b) return E_OUTOFMEMORY;
210 hr = IDataConvert_DataConvert(iface, DBTYPE_BSTR, dst_type, 0, dst_len,
211 &b, dst, dst_max_len, src_status, dst_status,
212 precision, scale, flags);
213 SysFreeString(b);
214 return hr;
215 }
216
217 switch(dst_type)
218 {
219 case DBTYPE_I2:
220 {
221 signed short *d = dst;
222 VARIANT tmp;
223 switch(src_type)
224 {
225 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
226 case DBTYPE_I2: *d = *(signed short*)src; hr = S_OK; break;
227 case DBTYPE_I4: hr = VarI2FromI4(*(signed int*)src, d); break;
228 case DBTYPE_R4: hr = VarI2FromR4(*(FLOAT*)src, d); break;
229 case DBTYPE_R8: hr = VarI2FromR8(*(double*)src, d); break;
230 case DBTYPE_CY: hr = VarI2FromCy(*(CY*)src, d); break;
231 case DBTYPE_DATE: hr = VarI2FromDate(*(DATE*)src, d); break;
232 case DBTYPE_BSTR: hr = VarI2FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
233 case DBTYPE_BOOL: hr = VarI2FromBool(*(VARIANT_BOOL*)src, d); break;
234 case DBTYPE_DECIMAL: hr = VarI2FromDec((DECIMAL*)src, d); break;
235 case DBTYPE_I1: hr = VarI2FromI1(*(signed char*)src, d); break;
236 case DBTYPE_UI1: hr = VarI2FromUI1(*(BYTE*)src, d); break;
237 case DBTYPE_UI2: hr = VarI2FromUI2(*(WORD*)src, d); break;
238 case DBTYPE_UI4: hr = VarI2FromUI4(*(DWORD*)src, d); break;
239 case DBTYPE_I8: hr = VarI2FromI8(*(LONGLONG*)src, d); break;
240 case DBTYPE_UI8: hr = VarI2FromUI8(*(ULONGLONG*)src, d); break;
241 case DBTYPE_VARIANT:
242 VariantInit(&tmp);
243 if ((hr = VariantChangeType(&tmp, (VARIANT*)src, 0, VT_I2)) == S_OK)
244 *d = V_I2(&tmp);
245 break;
246 default: FIXME("Unimplemented conversion %04x -> I2\n", src_type); return E_NOTIMPL;
247 }
248 break;
249 }
250
251 case DBTYPE_I4:
252 {
253 signed int *d = dst;
254 VARIANT tmp;
255 switch(src_type)
256 {
257 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
258 case DBTYPE_I2: hr = VarI4FromI2(*(signed short*)src, d); break;
259 case DBTYPE_I4: *d = *(signed int*)src; hr = S_OK; break;
260 case DBTYPE_R4: hr = VarI4FromR4(*(FLOAT*)src, d); break;
261 case DBTYPE_R8: hr = VarI4FromR8(*(double*)src, d); break;
262 case DBTYPE_CY: hr = VarI4FromCy(*(CY*)src, d); break;
263 case DBTYPE_DATE: hr = VarI4FromDate(*(DATE*)src, d); break;
264 case DBTYPE_BSTR: hr = VarI4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
265 case DBTYPE_BOOL: hr = VarI4FromBool(*(VARIANT_BOOL*)src, d); break;
266 case DBTYPE_DECIMAL: hr = VarI4FromDec((DECIMAL*)src, d); break;
267 case DBTYPE_I1: hr = VarI4FromI1(*(signed char*)src, d); break;
268 case DBTYPE_UI1: hr = VarI4FromUI1(*(BYTE*)src, d); break;
269 case DBTYPE_UI2: hr = VarI4FromUI2(*(WORD*)src, d); break;
270 case DBTYPE_UI4: hr = VarI4FromUI4(*(DWORD*)src, d); break;
271 case DBTYPE_I8: hr = VarI4FromI8(*(LONGLONG*)src, d); break;
272 case DBTYPE_UI8: hr = VarI4FromUI8(*(ULONGLONG*)src, d); break;
273 case DBTYPE_VARIANT:
274 VariantInit(&tmp);
275 if ((hr = VariantChangeType(&tmp, (VARIANT*)src, 0, VT_I4)) == S_OK)
276 *d = V_I4(&tmp);
277 break;
278 default: FIXME("Unimplemented conversion %04x -> I4\n", src_type); return E_NOTIMPL;
279 }
280 break;
281 }
282
283 case DBTYPE_R4:
284 {
285 FLOAT *d = dst;
286 switch(src_type)
287 {
288 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
289 case DBTYPE_I2: hr = VarR4FromI2(*(signed short*)src, d); break;
290 case DBTYPE_I4: hr = VarR4FromI4(*(signed int*)src, d); break;
291 case DBTYPE_R4: *d = *(FLOAT*)src; hr = S_OK; break;
292 case DBTYPE_R8: hr = VarR4FromR8(*(double*)src, d); break;
293 case DBTYPE_CY: hr = VarR4FromCy(*(CY*)src, d); break;
294 case DBTYPE_DATE: hr = VarR4FromDate(*(DATE*)src, d); break;
295 case DBTYPE_BSTR: hr = VarR4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
296 case DBTYPE_BOOL: hr = VarR4FromBool(*(VARIANT_BOOL*)src, d); break;
297 case DBTYPE_DECIMAL: hr = VarR4FromDec((DECIMAL*)src, d); break;
298 case DBTYPE_I1: hr = VarR4FromI1(*(signed char*)src, d); break;
299 case DBTYPE_UI1: hr = VarR4FromUI1(*(BYTE*)src, d); break;
300 case DBTYPE_UI2: hr = VarR4FromUI2(*(WORD*)src, d); break;
301 case DBTYPE_UI4: hr = VarR4FromUI4(*(DWORD*)src, d); break;
302 case DBTYPE_I8: hr = VarR4FromI8(*(LONGLONG*)src, d); break;
303 case DBTYPE_UI8: hr = VarR4FromUI8(*(ULONGLONG*)src, d); break;
304 default: FIXME("Unimplemented conversion %04x -> R4\n", src_type); return E_NOTIMPL;
305 }
306 break;
307 }
308 case DBTYPE_R8:
309 {
310 DOUBLE *d=dst;
311 switch (src_type)
312 {
313 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
314 case DBTYPE_I1: hr = VarR8FromI1(*(signed char*)src, d); break;
315 case DBTYPE_I2: hr = VarR8FromI2(*(signed short*)src, d); break;
316 case DBTYPE_I4: hr = VarR8FromI4(*(signed int*)src, d); break;
317 case DBTYPE_I8: hr = VarR8FromI8(*(LONGLONG*)src, d); break;
318 case DBTYPE_UI1: hr = VarR8FromUI1(*(BYTE*)src, d); break;
319 case DBTYPE_UI2: hr = VarR8FromUI2(*(WORD*)src, d); break;
320 case DBTYPE_UI4: hr = VarR8FromUI4(*(DWORD*)src, d); break;
321 case DBTYPE_UI8: hr = VarR8FromUI8(*(ULONGLONG*)src, d); break;
322 case DBTYPE_R4: hr = VarR8FromR4(*(FLOAT*)src, d); break;
323 case DBTYPE_R8: *d = *(DOUBLE*)src; hr = S_OK; break;
324 case DBTYPE_CY: hr = VarR8FromCy(*(CY*)src, d); break;
325 case DBTYPE_DATE: hr = VarR8FromDate(*(DATE*)src, d); break;
326 case DBTYPE_BSTR: hr = VarR8FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
327 case DBTYPE_BOOL: hr = VarR8FromBool(*(VARIANT_BOOL*)src, d); break;
328 case DBTYPE_DECIMAL: hr = VarR8FromDec((DECIMAL*)src, d); break;
329 default: FIXME("Unimplemented conversion %04x -> R8\n", src_type); return E_NOTIMPL;
330 }
331 break;
332 }
333 case DBTYPE_BOOL:
334 {
335 VARIANT_BOOL *d=dst;
336 switch (src_type)
337 {
338 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
339 case DBTYPE_I1: hr = VarBoolFromI1(*(signed char*)src, d); break;
340 case DBTYPE_I2: hr = VarBoolFromI2(*(signed short*)src, d); break;
341 case DBTYPE_I4: hr = VarBoolFromI4(*(signed int*)src, d); break;
342 case DBTYPE_I8: hr = VarBoolFromI8(*(LONGLONG*)src, d); break;
343 case DBTYPE_UI1: hr = VarBoolFromUI1(*(BYTE*)src, d); break;
344 case DBTYPE_UI2: hr = VarBoolFromUI2(*(WORD*)src, d); break;
345 case DBTYPE_UI4: hr = VarBoolFromUI4(*(DWORD*)src, d); break;
346 case DBTYPE_UI8: hr = VarBoolFromUI8(*(ULONGLONG*)src, d); break;
347 case DBTYPE_R4: hr = VarBoolFromR4(*(FLOAT*)src, d); break;
348 case DBTYPE_R8: hr = VarBoolFromR8(*(DOUBLE*)src, d); break;
349 case DBTYPE_CY: hr = VarBoolFromCy(*(CY*)src, d); break;
350 case DBTYPE_DATE: hr = VarBoolFromDate(*(DATE*)src, d); break;
351 case DBTYPE_BSTR: hr = VarBoolFromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
352 case DBTYPE_BOOL: *d = *(VARIANT_BOOL*)src; hr = S_OK; break;
353 case DBTYPE_DECIMAL: hr = VarBoolFromDec((DECIMAL*)src, d); break;
354 default: FIXME("Unimplemented conversion %04x -> BOOL\n", src_type); return E_NOTIMPL;
355 }
356 break;
357 }
358 case DBTYPE_DATE:
359 {
360 DATE *d=dst;
361 switch (src_type)
362 {
363 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
364 case DBTYPE_I1: hr = VarDateFromI1(*(signed char*)src, d); break;
365 case DBTYPE_I2: hr = VarDateFromI2(*(signed short*)src, d); break;
366 case DBTYPE_I4: hr = VarDateFromI4(*(signed int*)src, d); break;
367 case DBTYPE_I8: hr = VarDateFromI8(*(LONGLONG*)src, d); break;
368 case DBTYPE_UI1: hr = VarDateFromUI1(*(BYTE*)src, d); break;
369 case DBTYPE_UI2: hr = VarDateFromUI2(*(WORD*)src, d); break;
370 case DBTYPE_UI4: hr = VarDateFromUI4(*(DWORD*)src, d); break;
371 case DBTYPE_UI8: hr = VarDateFromUI8(*(ULONGLONG*)src, d); break;
372 case DBTYPE_R4: hr = VarDateFromR4(*(FLOAT*)src, d); break;
373 case DBTYPE_R8: hr = VarDateFromR8(*(DOUBLE*)src, d); break;
374 case DBTYPE_CY: hr = VarDateFromCy(*(CY*)src, d); break;
375 case DBTYPE_DATE: *d = *(DATE*)src; hr = S_OK; break;
376 case DBTYPE_BSTR: hr = VarDateFromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
377 case DBTYPE_BOOL: hr = VarDateFromBool(*(VARIANT_BOOL*)src, d); break;
378 case DBTYPE_DECIMAL: hr = VarDateFromDec((DECIMAL*)src, d); break;
379 case DBTYPE_DBTIMESTAMP:
380 {
381 SYSTEMTIME st;
382 DBTIMESTAMP *ts=(DBTIMESTAMP*)src;
383
384 st.wYear = ts->year;
385 st.wMonth = ts->month;
386 st.wDay = ts->day;
387 st.wHour = ts->hour;
388 st.wMinute = ts->minute;
389 st.wSecond = ts->second;
390 st.wMilliseconds = ts->fraction/1000000;
391 hr = (SystemTimeToVariantTime(&st, d) ? S_OK : E_FAIL);
392 break;
393 }
394 default: FIXME("Unimplemented conversion %04x -> DATE\n", src_type); return E_NOTIMPL;
395 }
396 break;
397 }
398 case DBTYPE_DBTIMESTAMP:
399 {
400 DBTIMESTAMP *d=dst;
401 switch (src_type)
402 {
403 case DBTYPE_EMPTY: memset(d, 0, sizeof(DBTIMESTAMP)); hr = S_OK; break;
404 case DBTYPE_DBTIMESTAMP: memcpy(d, src, sizeof(DBTIMESTAMP)); hr = S_OK; break;
405 case DBTYPE_DATE:
406 {
407 SYSTEMTIME st;
408 hr = (VariantTimeToSystemTime(*(double*)src, &st) ? S_OK : E_FAIL);
409 d->year = st.wYear;
410 d->month = st.wMonth;
411 d->day = st.wDay;
412 d->hour = st.wHour;
413 d->minute = st.wMinute;
414 d->second = st.wSecond;
415 d->fraction = st.wMilliseconds * 1000000;
416 break;
417 }
418 default: FIXME("Unimplemented conversion %04x -> DBTIMESTAMP\n", src_type); return E_NOTIMPL;
419 }
420 break;
421 }
422
423 case DBTYPE_CY:
424 {
425 CY *d = dst;
426 switch(src_type)
427 {
428 case DBTYPE_EMPTY: d->int64 = 0; hr = S_OK; break;
429 case DBTYPE_I2: hr = VarCyFromI2(*(signed short*)src, d); break;
430 case DBTYPE_I4: hr = VarCyFromI4(*(signed int*)src, d); break;
431 case DBTYPE_R4: hr = VarCyFromR4(*(FLOAT*)src, d); break;
432 case DBTYPE_R8: hr = VarCyFromR8(*(double*)src, d); break;
433 case DBTYPE_CY: *d = *(CY*)src; hr = S_OK; break;
434 case DBTYPE_DATE: hr = VarCyFromDate(*(DATE*)src, d); break;
435 case DBTYPE_BSTR: hr = VarCyFromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
436 case DBTYPE_BOOL: hr = VarCyFromBool(*(VARIANT_BOOL*)src, d); break;
437 case DBTYPE_DECIMAL: hr = VarCyFromDec((DECIMAL*)src, d); break;
438 case DBTYPE_I1: hr = VarCyFromI1(*(signed char*)src, d); break;
439 case DBTYPE_UI1: hr = VarCyFromUI1(*(BYTE*)src, d); break;
440 case DBTYPE_UI2: hr = VarCyFromUI2(*(WORD*)src, d); break;
441 case DBTYPE_UI4: hr = VarCyFromUI4(*(DWORD*)src, d); break;
442 case DBTYPE_I8: hr = VarCyFromI8(*(LONGLONG*)src, d); break;
443 case DBTYPE_UI8: hr = VarCyFromUI8(*(ULONGLONG*)src, d); break;
444 default: FIXME("Unimplemented conversion %04x -> CY\n", src_type); return E_NOTIMPL;
445 }
446 break;
447 }
448
449 case DBTYPE_BSTR:
450 {
451 BSTR *d = dst;
452 switch(src_type)
453 {
454 case DBTYPE_EMPTY: *d = SysAllocStringLen(NULL, 0); hr = *d ? S_OK : E_OUTOFMEMORY; break;
455 case DBTYPE_I2: hr = VarBstrFromI2(*(signed short*)src, LOCALE_USER_DEFAULT, 0, d); break;
456 case DBTYPE_I4: hr = VarBstrFromI4(*(signed int*)src, LOCALE_USER_DEFAULT, 0, d); break;
457 case DBTYPE_R4: hr = VarBstrFromR4(*(FLOAT*)src, LOCALE_USER_DEFAULT, 0, d); break;
458 case DBTYPE_R8: hr = VarBstrFromR8(*(double*)src, LOCALE_USER_DEFAULT, 0, d); break;
459 case DBTYPE_CY: hr = VarBstrFromCy(*(CY*)src, LOCALE_USER_DEFAULT, 0, d); break;
460 case DBTYPE_DATE: hr = VarBstrFromDate(*(DATE*)src, LOCALE_USER_DEFAULT, 0, d); break;
461 case DBTYPE_BSTR: *d = SysAllocStringLen(*(BSTR*)src, SysStringLen(*(BSTR*)src)); hr = *d ? S_OK : E_OUTOFMEMORY; break;
462 case DBTYPE_BOOL: hr = VarBstrFromBool(*(VARIANT_BOOL*)src, LOCALE_USER_DEFAULT, 0, d); break;
463 case DBTYPE_DECIMAL: hr = VarBstrFromDec((DECIMAL*)src, LOCALE_USER_DEFAULT, 0, d); break;
464 case DBTYPE_I1: hr = VarBstrFromI1(*(signed char*)src, LOCALE_USER_DEFAULT, 0, d); break;
465 case DBTYPE_UI1: hr = VarBstrFromUI1(*(BYTE*)src, LOCALE_USER_DEFAULT, 0, d); break;
466 case DBTYPE_UI2: hr = VarBstrFromUI2(*(WORD*)src, LOCALE_USER_DEFAULT, 0, d); break;
467 case DBTYPE_UI4: hr = VarBstrFromUI4(*(DWORD*)src, LOCALE_USER_DEFAULT, 0, d); break;
468 case DBTYPE_I8: hr = VarBstrFromI8(*(LONGLONG*)src, LOCALE_USER_DEFAULT, 0, d); break;
469 case DBTYPE_UI8: hr = VarBstrFromUI8(*(ULONGLONG*)src, LOCALE_USER_DEFAULT, 0, d); break;
470 case DBTYPE_GUID:
471 {
472 WCHAR szBuff[39];
473 const GUID *id = (const GUID *)src;
474 WCHAR format[] = {
475 '{','%','0','8','X','-','%','0','4','X','-','%','0','4','X','-',
476 '%','0','2','X','%','0','2','X','-',
477 '%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','%','0','2','X','}',0};
478 wsprintfW(szBuff, format,
479 id->Data1, id->Data2, id->Data3,
480 id->Data4[0], id->Data4[1], id->Data4[2], id->Data4[3],
481 id->Data4[4], id->Data4[5], id->Data4[6], id->Data4[7] );
482 *d = SysAllocString(szBuff);
483 hr = *d ? S_OK : E_OUTOFMEMORY;
484 }
485 break;
486 case DBTYPE_BYTES:
487 {
488 *d = SysAllocStringLen(NULL, 2 * src_len);
489 if (*d == NULL)
490 hr = E_OUTOFMEMORY;
491 else
492 {
493 const char hexchars[] = "0123456789ABCDEF";
494 WCHAR *s = *d;
495 unsigned char *p = src;
496 while (src_len > 0)
497 {
498 *s++ = hexchars[(*p >> 4) & 0x0F];
499 *s++ = hexchars[(*p) & 0x0F];
500 src_len--; p++;
501 }
502 hr = S_OK;
503 }
504 }
505 break;
506 default: FIXME("Unimplemented conversion %04x -> BSTR\n", src_type); return E_NOTIMPL;
507 }
508 break;
509 }
510
511 case DBTYPE_UI1:
512 {
513 BYTE *d = dst;
514 switch(src_type)
515 {
516 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
517 case DBTYPE_I2: hr = VarUI1FromI2(*(signed short*)src, d); break;
518 case DBTYPE_I4: hr = VarUI1FromI4(*(signed int*)src, d); break;
519 case DBTYPE_R4: hr = VarUI1FromR4(*(FLOAT*)src, d); break;
520 case DBTYPE_R8: hr = VarUI1FromR8(*(double*)src, d); break;
521 case DBTYPE_CY: hr = VarUI1FromCy(*(CY*)src, d); break;
522 case DBTYPE_DATE: hr = VarUI1FromDate(*(DATE*)src, d); break;
523 case DBTYPE_BSTR: hr = VarUI1FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
524 case DBTYPE_BOOL: hr = VarUI1FromBool(*(VARIANT_BOOL*)src, d); break;
525 case DBTYPE_DECIMAL: hr = VarUI1FromDec((DECIMAL*)src, d); break;
526 case DBTYPE_I1: hr = VarUI1FromI1(*(signed char*)src, d); break;
527 case DBTYPE_UI1: *d = *(BYTE*)src; hr = S_OK; break;
528 case DBTYPE_UI2: hr = VarUI1FromUI2(*(WORD*)src, d); break;
529 case DBTYPE_UI4: hr = VarUI1FromUI4(*(DWORD*)src, d); break;
530 case DBTYPE_I8: hr = VarUI1FromI8(*(LONGLONG*)src, d); break;
531 case DBTYPE_UI8: hr = VarUI1FromUI8(*(ULONGLONG*)src, d); break;
532 default: FIXME("Unimplemented conversion %04x -> UI1\n", src_type); return E_NOTIMPL;
533 }
534 break;
535 }
536
537 case DBTYPE_UI4:
538 {
539 DWORD *d = dst;
540 switch(src_type)
541 {
542 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
543 case DBTYPE_I2: hr = VarUI4FromI2(*(signed short*)src, d); break;
544 case DBTYPE_I4: hr = VarUI4FromI4(*(signed int*)src, d); break;
545 case DBTYPE_R4: hr = VarUI4FromR4(*(FLOAT*)src, d); break;
546 case DBTYPE_R8: hr = VarUI4FromR8(*(double*)src, d); break;
547 case DBTYPE_CY: hr = VarUI4FromCy(*(CY*)src, d); break;
548 case DBTYPE_DATE: hr = VarUI4FromDate(*(DATE*)src, d); break;
549 case DBTYPE_BSTR: hr = VarUI4FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
550 case DBTYPE_BOOL: hr = VarUI4FromBool(*(VARIANT_BOOL*)src, d); break;
551 case DBTYPE_DECIMAL: hr = VarUI4FromDec((DECIMAL*)src, d); break;
552 case DBTYPE_I1: hr = VarUI4FromI1(*(signed char*)src, d); break;
553 case DBTYPE_UI1: hr = VarUI4FromUI1(*(BYTE*)src, d); break;
554 case DBTYPE_UI2: hr = VarUI4FromUI2(*(WORD*)src, d); break;
555 case DBTYPE_UI4: *d = *(DWORD*)src; hr = S_OK; break;
556 case DBTYPE_I8: hr = VarUI4FromI8(*(LONGLONG*)src, d); break;
557 case DBTYPE_UI8: hr = VarUI4FromUI8(*(ULONGLONG*)src, d); break;
558 default: FIXME("Unimplemented conversion %04x -> UI4\n", src_type); return E_NOTIMPL;
559 }
560 break;
561 }
562
563 case DBTYPE_UI8:
564 {
565 ULONGLONG *d = dst;
566 switch(src_type)
567 {
568 case DBTYPE_EMPTY: *d = 0; hr = S_OK; break;
569 case DBTYPE_I2: hr = VarUI8FromI2(*(signed short*)src, d); break;
570 case DBTYPE_I4: {LONGLONG s = *(signed int*)src; hr = VarUI8FromI8(s, d); break;}
571 case DBTYPE_R4: hr = VarUI8FromR4(*(FLOAT*)src, d); break;
572 case DBTYPE_R8: hr = VarUI8FromR8(*(double*)src, d); break;
573 case DBTYPE_CY: hr = VarUI8FromCy(*(CY*)src, d); break;
574 case DBTYPE_DATE: hr = VarUI8FromDate(*(DATE*)src, d); break;
575 case DBTYPE_BSTR: hr = VarUI8FromStr(*(WCHAR**)src, LOCALE_USER_DEFAULT, 0, d); break;
576 case DBTYPE_BOOL: hr = VarUI8FromBool(*(VARIANT_BOOL*)src, d); break;
577 case DBTYPE_DECIMAL: hr = VarUI8FromDec((DECIMAL*)src, d); break;
578 case DBTYPE_I1: hr = VarUI8FromI1(*(signed char*)src, d); break;
579 case DBTYPE_UI1: hr = VarUI8FromUI1(*(BYTE*)src, d); break;
580 case DBTYPE_UI2: hr = VarUI8FromUI2(*(WORD*)src, d); break;
581 case DBTYPE_UI4: hr = VarUI8FromUI4(*(DWORD*)src, d); break;
582 case DBTYPE_I8: hr = VarUI8FromI8(*(LONGLONG*)src, d); break;
583 case DBTYPE_UI8: *d = *(ULONGLONG*)src; hr = S_OK; break;
584 default: FIXME("Unimplemented conversion %04x -> UI8\n", src_type); return E_NOTIMPL;
585 }
586 break;
587 }
588
589 case DBTYPE_FILETIME:
590 {
591 FILETIME *d = dst;
592 switch(src_type)
593 {
594 case DBTYPE_EMPTY: d->dwLowDateTime = d->dwHighDateTime = 0; hr = S_OK; break;
595 case DBTYPE_FILETIME: *d = *(FILETIME*)src; hr = S_OK; break;
596 default: FIXME("Unimplemented conversion %04x -> FILETIME\n", src_type); return E_NOTIMPL;
597 }
598 break;
599 }
600
601 case DBTYPE_GUID:
602 {
603 GUID *d = dst;
604 switch(src_type)
605 {
606 case DBTYPE_EMPTY: *d = GUID_NULL; hr = S_OK; break;
607 case DBTYPE_GUID: *d = *(GUID*)src; hr = S_OK; break;
608 default: FIXME("Unimplemented conversion %04x -> GUID\n", src_type); return E_NOTIMPL;
609 }
610 break;
611 }
612
613 case DBTYPE_WSTR:
614 {
615 BSTR b;
616 DBLENGTH bstr_len;
617 INT bytes_to_copy;
618 hr = IDataConvert_DataConvert(iface, src_type, DBTYPE_BSTR, src_len, &bstr_len,
619 src, &b, sizeof(BSTR), src_status, dst_status,
620 precision, scale, flags);
621 if(hr != S_OK) return hr;
622 bstr_len = SysStringLen(b);
623 *dst_len = bstr_len * sizeof(WCHAR); /* Doesn't include size for '\0' */
624 *dst_status = DBSTATUS_S_OK;
625 bytes_to_copy = min(*dst_len + sizeof(WCHAR), dst_max_len);
626 if(dst)
627 {
628 if(bytes_to_copy >= sizeof(WCHAR))
629 {
630 memcpy(dst, b, bytes_to_copy - sizeof(WCHAR));
631 *((WCHAR*)dst + bytes_to_copy / sizeof(WCHAR) - 1) = 0;
632 if(bytes_to_copy < *dst_len + sizeof(WCHAR))
633 *dst_status = DBSTATUS_S_TRUNCATED;
634 }
635 else
636 {
637 *dst_status = DBSTATUS_E_DATAOVERFLOW;
638 hr = DB_E_ERRORSOCCURRED;
639 }
640 }
641 SysFreeString(b);
642 return hr;
643 }
644 case DBTYPE_STR:
645 {
646 BSTR b;
647 DBLENGTH bstr_len;
648 INT bytes_to_copy;
649 hr = IDataConvert_DataConvert(iface, src_type, DBTYPE_BSTR, src_len, &bstr_len,
650 src, &b, sizeof(BSTR), src_status, dst_status,
651 precision, scale, flags);
652 if(hr != S_OK) return hr;
653 bstr_len = SysStringLen(b);
654 *dst_len = bstr_len * sizeof(char); /* Doesn't include size for '\0' */
655 *dst_status = DBSTATUS_S_OK;
656 bytes_to_copy = min(*dst_len + sizeof(char), dst_max_len);
657 if(dst)
658 {
659 if(bytes_to_copy >= sizeof(char))
660 {
661 WideCharToMultiByte(CP_ACP, 0, b, bytes_to_copy - sizeof(char), dst, dst_max_len, NULL, NULL);
662 *((char *)dst + bytes_to_copy / sizeof(char) - 1) = 0;
663 if(bytes_to_copy < *dst_len + sizeof(char))
664 *dst_status = DBSTATUS_S_TRUNCATED;
665 }
666 else
667 {
668 *dst_status = DBSTATUS_E_DATAOVERFLOW;
669 hr = DB_E_ERRORSOCCURRED;
670 }
671 }
672 SysFreeString(b);
673 return hr;
674 }
675
676 case DBTYPE_BYREF | DBTYPE_WSTR:
677 {
678 BSTR b;
679 WCHAR **d = dst;
680 DBLENGTH bstr_len;
681 hr = IDataConvert_DataConvert(iface, src_type, DBTYPE_BSTR, src_len, &bstr_len,
682 src, &b, sizeof(BSTR), src_status, dst_status,
683 precision, scale, flags);
684 if(hr != S_OK) return hr;
685
686 bstr_len = SysStringLen(b) * sizeof(WCHAR);
687 *dst_len = bstr_len; /* Doesn't include size for '\0' */
688
689 *d = CoTaskMemAlloc(bstr_len + sizeof(WCHAR));
690 if(*d) memcpy(*d, b, bstr_len + sizeof(WCHAR));
691 else hr = E_OUTOFMEMORY;
692 SysFreeString(b);
693 return hr;
694 }
695
696 default:
697 FIXME("Unimplemented conversion %04x -> %04x\n", src_type, dst_type);
698 return E_NOTIMPL;
699
700 }
701
702 if(hr == DISP_E_OVERFLOW)
703 {
704 *dst_status = DBSTATUS_E_DATAOVERFLOW;
705 *dst_len = get_length(dst_type);
706 hr = DB_E_ERRORSOCCURRED;
707 }
708 else if(hr == S_OK)
709 {
710 *dst_status = DBSTATUS_S_OK;
711 *dst_len = get_length(dst_type);
712 }
713
714 return hr;
715 }
716
717 static inline WORD get_dbtype_class(DBTYPE type)
718 {
719 switch(type)
720 {
721 case DBTYPE_I2:
722 case DBTYPE_R4:
723 case DBTYPE_R8:
724 case DBTYPE_I1:
725 case DBTYPE_UI1:
726 case DBTYPE_UI2:
727 return DBTYPE_I2;
728
729 case DBTYPE_I4:
730 case DBTYPE_UI4:
731 return DBTYPE_I4;
732
733 case DBTYPE_I8:
734 case DBTYPE_UI8:
735 return DBTYPE_I8;
736
737 case DBTYPE_BSTR:
738 case DBTYPE_STR:
739 case DBTYPE_WSTR:
740 return DBTYPE_BSTR;
741
742 case DBTYPE_DBDATE:
743 case DBTYPE_DBTIME:
744 case DBTYPE_DBTIMESTAMP:
745 return DBTYPE_DBDATE;
746 }
747 return type;
748 }
749
750 /* Many src types will convert to this group of dst types */
751 static inline BOOL common_class(WORD dst_class)
752 {
753 switch(dst_class)
754 {
755 case DBTYPE_EMPTY:
756 case DBTYPE_NULL:
757 case DBTYPE_I2:
758 case DBTYPE_I4:
759 case DBTYPE_BSTR:
760 case DBTYPE_BOOL:
761 case DBTYPE_VARIANT:
762 case DBTYPE_I8:
763 case DBTYPE_CY:
764 case DBTYPE_DECIMAL:
765 case DBTYPE_NUMERIC:
766 return TRUE;
767 }
768 return FALSE;
769 }
770
771 static inline BOOL array_type(DBTYPE type)
772 {
773 return (type >= DBTYPE_I2 && type <= DBTYPE_UI4);
774 }
775
776 static HRESULT WINAPI convert_CanConvert(IDataConvert* iface,
777 DBTYPE src_type, DBTYPE dst_type)
778 {
779 convert *This = impl_from_IDataConvert(iface);
780 DBTYPE src_base_type = src_type & 0x1ff;
781 DBTYPE dst_base_type = dst_type & 0x1ff;
782 WORD dst_class = get_dbtype_class(dst_base_type);
783
784 TRACE("(%p)->(%d, %d)\n", This, src_type, dst_type);
785
786 if(src_type & DBTYPE_VECTOR || dst_type & DBTYPE_VECTOR) return S_FALSE;
787
788 if(src_type & DBTYPE_ARRAY)
789 {
790 if(!array_type(src_base_type)) return S_FALSE;
791 if(dst_type & DBTYPE_ARRAY)
792 {
793 if(src_type == dst_type) return S_OK;
794 return S_FALSE;
795 }
796 if(dst_type == DBTYPE_VARIANT) return S_OK;
797 return S_FALSE;
798 }
799
800 if(dst_type & DBTYPE_ARRAY)
801 {
802 if(!array_type(dst_base_type)) return S_FALSE;
803 if(src_type == DBTYPE_IDISPATCH || src_type == DBTYPE_VARIANT) return S_OK;
804 return S_FALSE;
805 }
806
807 if(dst_type & DBTYPE_BYREF)
808 if(dst_base_type != DBTYPE_BYTES && dst_base_type != DBTYPE_STR && dst_base_type != DBTYPE_WSTR)
809 return S_FALSE;
810
811 switch(get_dbtype_class(src_base_type))
812 {
813 case DBTYPE_EMPTY:
814 if(common_class(dst_class)) return S_OK;
815 switch(dst_class)
816 {
817 case DBTYPE_DATE:
818 case DBTYPE_GUID:
819 case DBTYPE_FILETIME:
820 return S_OK;
821 default:
822 if(dst_base_type == DBTYPE_DBTIMESTAMP) return S_OK;
823 return S_FALSE;
824 }
825
826 case DBTYPE_NULL:
827 switch(dst_base_type)
828 {
829 case DBTYPE_NULL:
830 case DBTYPE_VARIANT:
831 case DBTYPE_FILETIME: return S_OK;
832 default: return S_FALSE;
833 }
834
835 case DBTYPE_I4:
836 if(dst_base_type == DBTYPE_BYTES) return S_OK;
837 /* fall through */
838 case DBTYPE_I2:
839 if(dst_base_type == DBTYPE_DATE) return S_OK;
840 /* fall through */
841 case DBTYPE_DECIMAL:
842 if(common_class(dst_class)) return S_OK;
843 if(dst_class == DBTYPE_DBDATE) return S_OK;
844 return S_FALSE;
845
846 case DBTYPE_BOOL:
847 if(dst_base_type == DBTYPE_DATE) return S_OK;
848 case DBTYPE_NUMERIC:
849 case DBTYPE_CY:
850 if(common_class(dst_class)) return S_OK;
851 return S_FALSE;
852
853 case DBTYPE_I8:
854 if(common_class(dst_class)) return S_OK;
855 switch(dst_base_type)
856 {
857 case DBTYPE_BYTES:
858 case DBTYPE_FILETIME: return S_OK;
859 default: return S_FALSE;
860 }
861
862 case DBTYPE_DATE:
863 switch(dst_class)
864 {
865 case DBTYPE_EMPTY:
866 case DBTYPE_NULL:
867 case DBTYPE_I2:
868 case DBTYPE_I4:
869 case DBTYPE_BSTR:
870 case DBTYPE_BOOL:
871 case DBTYPE_VARIANT:
872 case DBTYPE_I8:
873 case DBTYPE_DATE:
874 case DBTYPE_DBDATE:
875 case DBTYPE_FILETIME:
876 return S_OK;
877 default: return S_FALSE;
878 }
879
880 case DBTYPE_IDISPATCH:
881 case DBTYPE_VARIANT:
882 switch(dst_base_type)
883 {
884 case DBTYPE_IDISPATCH:
885 case DBTYPE_ERROR:
886 case DBTYPE_IUNKNOWN:
887 return S_OK;
888 }
889 /* fall through */
890 case DBTYPE_BSTR:
891 if(common_class(dst_class)) return S_OK;
892 switch(dst_class)
893 {
894 case DBTYPE_DATE:
895 case DBTYPE_GUID:
896 case DBTYPE_BYTES:
897 case DBTYPE_DBDATE:
898 case DBTYPE_FILETIME:
899 return S_OK;
900 default: return S_FALSE;
901 }
902
903 case DBTYPE_ERROR:
904 switch(dst_base_type)
905 {
906 case DBTYPE_BSTR:
907 case DBTYPE_ERROR:
908 case DBTYPE_VARIANT:
909 case DBTYPE_WSTR:
910 return S_OK;
911 default: return S_FALSE;
912 }
913
914 case DBTYPE_IUNKNOWN:
915 switch(dst_base_type)
916 {
917 case DBTYPE_EMPTY:
918 case DBTYPE_NULL:
919 case DBTYPE_IDISPATCH:
920 case DBTYPE_VARIANT:
921 case DBTYPE_IUNKNOWN:
922 return S_OK;
923 default: return S_FALSE;
924 }
925
926 case DBTYPE_BYTES:
927 if(dst_class == DBTYPE_I4 || dst_class == DBTYPE_I8) return S_OK;
928 /* fall through */
929 case DBTYPE_GUID:
930 switch(dst_class)
931 {
932 case DBTYPE_EMPTY:
933 case DBTYPE_NULL:
934 case DBTYPE_BSTR:
935 case DBTYPE_VARIANT:
936 case DBTYPE_GUID:
937 case DBTYPE_BYTES:
938 return S_OK;
939 default: return S_FALSE;
940 }
941
942 case DBTYPE_FILETIME:
943 if(dst_class == DBTYPE_I8) return S_OK;
944 /* fall through */
945 case DBTYPE_DBDATE:
946 switch(dst_class)
947 {
948 case DBTYPE_EMPTY:
949 case DBTYPE_NULL:
950 case DBTYPE_DATE:
951 case DBTYPE_BSTR:
952 case DBTYPE_VARIANT:
953 case DBTYPE_DBDATE:
954 case DBTYPE_FILETIME:
955 return S_OK;
956 default: return S_FALSE;
957 }
958
959 }
960 return S_FALSE;
961 }
962
963 static HRESULT WINAPI convert_GetConversionSize(IDataConvert* iface,
964 DBTYPE wSrcType, DBTYPE wDstType,
965 DBLENGTH *pcbSrcLength, DBLENGTH *pcbDstLength,
966 void *pSrc)
967 {
968 convert *This = impl_from_IDataConvert(iface);
969 FIXME("(%p)->(%d, %d, %p, %p, %p): stub\n", This, wSrcType, wDstType, pcbSrcLength, pcbDstLength, pSrc);
970
971 return E_NOTIMPL;
972 }
973
974 static const struct IDataConvertVtbl convert_vtbl =
975 {
976 convert_QueryInterface,
977 convert_AddRef,
978 convert_Release,
979 convert_DataConvert,
980 convert_CanConvert,
981 convert_GetConversionSize
982 };
983
984 static HRESULT WINAPI dcinfo_QueryInterface(IDCInfo* iface, REFIID riid, void **obj)
985 {
986 convert *This = impl_from_IDCInfo(iface);
987
988 return IDataConvert_QueryInterface(&This->IDataConvert_iface, riid, obj);
989 }
990
991 static ULONG WINAPI dcinfo_AddRef(IDCInfo* iface)
992 {
993 convert *This = impl_from_IDCInfo(iface);
994
995 return IDataConvert_AddRef(&This->IDataConvert_iface);
996 }
997
998 static ULONG WINAPI dcinfo_Release(IDCInfo* iface)
999 {
1000 convert *This = impl_from_IDCInfo(iface);
1001
1002 return IDataConvert_Release(&This->IDataConvert_iface);
1003 }
1004
1005 static HRESULT WINAPI dcinfo_GetInfo(IDCInfo *iface, ULONG num, DCINFOTYPE types[], DCINFO **info_ptr)
1006 {
1007 convert *This = impl_from_IDCInfo(iface);
1008 ULONG i;
1009 DCINFO *infos;
1010
1011 TRACE("(%p)->(%d, %p, %p)\n", This, num, types, info_ptr);
1012
1013 *info_ptr = infos = CoTaskMemAlloc(num * sizeof(*infos));
1014 if(!infos) return E_OUTOFMEMORY;
1015
1016 for(i = 0; i < num; i++)
1017 {
1018 infos[i].eInfoType = types[i];
1019 VariantInit(&infos[i].vData);
1020
1021 switch(types[i])
1022 {
1023 case DCINFOTYPE_VERSION:
1024 V_VT(&infos[i].vData) = VT_UI4;
1025 V_UI4(&infos[i].vData) = This->version;
1026 break;
1027 }
1028 }
1029
1030 return S_OK;
1031 }
1032
1033 static HRESULT WINAPI dcinfo_SetInfo(IDCInfo* iface, ULONG num, DCINFO info[])
1034 {
1035 convert *This = impl_from_IDCInfo(iface);
1036 ULONG i;
1037 HRESULT hr = S_OK;
1038
1039 TRACE("(%p)->(%d, %p)\n", This, num, info);
1040
1041 for(i = 0; i < num; i++)
1042 {
1043 switch(info[i].eInfoType)
1044 {
1045 case DCINFOTYPE_VERSION:
1046 if(V_VT(&info[i].vData) != VT_UI4)
1047 {
1048 FIXME("VERSION with vt %x\n", V_VT(&info[i].vData));
1049 hr = DB_S_ERRORSOCCURRED;
1050 break;
1051 }
1052 This->version = V_UI4(&info[i].vData);
1053 break;
1054
1055 default:
1056 FIXME("Unhandled info type %d (vt %x)\n", info[i].eInfoType, V_VT(&info[i].vData));
1057 }
1058 }
1059 return hr;
1060 }
1061
1062 static const struct IDCInfoVtbl dcinfo_vtbl =
1063 {
1064 dcinfo_QueryInterface,
1065 dcinfo_AddRef,
1066 dcinfo_Release,
1067 dcinfo_GetInfo,
1068 dcinfo_SetInfo
1069 };
1070
1071 HRESULT create_oledb_convert(IUnknown *outer, void **obj)
1072 {
1073 convert *This;
1074
1075 TRACE("(%p, %p)\n", outer, obj);
1076
1077 *obj = NULL;
1078
1079 if(outer) return CLASS_E_NOAGGREGATION;
1080
1081 This = HeapAlloc(GetProcessHeap(), 0, sizeof(*This));
1082 if(!This) return E_OUTOFMEMORY;
1083
1084 This->IDataConvert_iface.lpVtbl = &convert_vtbl;
1085 This->IDCInfo_iface.lpVtbl = &dcinfo_vtbl;
1086 This->ref = 1;
1087 This->version = 0x110;
1088
1089 *obj = &This->IDataConvert_iface;
1090
1091 return S_OK;
1092 }
Windows API implementation