1 //
2 // Class for creating OLE automation controllers.
3 //
4 // CreateObject() creates an automation object
5 // Invoke() will call a property or method of the automation object.
6 // GetProperty() returns a property
7 // SetProperty() changes a property
8 // Method() invokes a method
9 //
10 // For example, the following VB code will control Microsoft Word:
11 //
12 // Private Sub Form_Load()
13 // Dim wb As Object
14 // Set wb = CreateObject("Word.Basic")
15 // wb.AppShow
16 // wb.FileNewDefault
17 // wb.Insert "This is a test"
18 // wb.FileSaveAs "c:\sample.doc)"
19 // End Sub
20 //
21 // A C++ automation controller that does the same can be written as follows:
22 // the helper functions:
23 //
24 // Void FormLoad ()
25 // {
26 // COleAutomationControl Aut;
27 // Aut.CreateObject("Word.Basic");
28 // Aut.Method ("AppShow");
29 // Aut.Method ("FileNewDefault");
30 // Aut.Method ("Insert", "s", (LPOLESTR) OLESTR ("This is a test"));
31 // Aut.Method ("FileSaveAs", "s", OLESTR ("c:\\sample.doc"));
32 // }
33 //
34 //
35
36 #include "stdafx.h"
37 #include <stdarg.h>
38 #include "oleaut.h"
39
40 #ifdef _DEBUG
41 #define new DEBUG_NEW
42 #undef THIS_FILE
43 static char THIS_FILE[] = __FILE__;
44 #endif
45
46
47 static bool CountArgsInFormat (LPCTSTR Format, UINT* nArgs);
48 static LPCTSTR GetNextVarType (LPCTSTR Format, VARTYPE* pVarType);
49
50
COleAutomationControl()51 COleAutomationControl::COleAutomationControl ()
52 {
53 m_pDispatch = NULL;
54 m_hResult = NOERROR;
55 m_nErrArg = 0;
56 VariantInit (&m_VariantResult);
57 }
58
~COleAutomationControl()59 COleAutomationControl::~COleAutomationControl ()
60 {
61 DeleteObject ();
62 }
63
DeleteObject()64 void COleAutomationControl::DeleteObject ()
65 {
66 if (m_pDispatch)
67 {
68 m_pDispatch->Release ();
69 m_pDispatch = NULL;
70 }
71 }
72
73 // Creates an instance of the Automation object and
74 // obtains its IDispatch interface.
75 //
76 // Parameters:
77 // ProgId ProgID of Automation object
78 //
CreateObject(char * ProgId)79 bool COleAutomationControl::CreateObject (char* ProgId)
80 {
81 CLSID ClsId; // CLSID of automation object
82 LPUNKNOWN pUnknown = NULL; // IUnknown of automation object
83
84 // Retrieve CLSID from the progID that the user specified
85 LPOLESTR OleProgId = TO_OLE_STR (ProgId);
86 m_hResult = CLSIDFromProgID (OleProgId, &ClsId);
87 if (FAILED (m_hResult))
88 goto error;
89
90 // Create an instance of the automation object and ask for the
91 // IDispatch interface
92 m_hResult = CoCreateInstance (ClsId, NULL, CLSCTX_SERVER,
93 IID_IUnknown, (void**) &pUnknown);
94 if (FAILED (m_hResult))
95 goto error;
96
97 m_hResult = pUnknown->QueryInterface (IID_IDispatch, (void**) &m_pDispatch);
98 if (FAILED (m_hResult))
99 goto error;
100
101 pUnknown->Release ();
102 return true;
103
104 error:
105 if (pUnknown)
106 pUnknown->Release ();
107 if (m_pDispatch)
108 m_pDispatch->Release ();
109 return false;
110 }
111
112 // Return the dispatch id of a named service
113 // This id can be used in subsequent calls to GetProperty (), SetProperty () and
114 // Method (). This is the preferred method when performance is important.
115 //
GetDispatchId(char * Name)116 DISPID COleAutomationControl::GetDispatchId (char* Name)
117 {
118 DISPID DispatchId;
119
120 ASSERT (m_pDispatch);
121
122 // Get DISPID of property/method
123 LPOLESTR OleName = TO_OLE_STR (Name);
124 m_hResult = m_pDispatch->GetIDsOfNames (IID_NULL, &OleName, 1,
125 LOCALE_USER_DEFAULT, &DispatchId);
126 if (FAILED (m_hResult))
127 return NULL;
128 return DispatchId;
129 }
130
131 // The following functions use these parameters:
132 //
133 // Parameters:
134 //
135 // Name Name of property or method.
136 //
137 // Format Format string that describes the variable list of parameters that
138 // follows. The format string can contain the following characters.
139 // & = mark the following format character as VT_BYREF
140 // B = VT_BOOL
141 // i = VT_I2
142 // I = VT_I4
143 // r = VT_R2
144 // R = VT_R4
145 // c = VT_CY
146 // s = VT_BSTR (string pointer can be passed,
147 // BSTR will be allocated by this function).
148 // e = VT_ERROR
149 // d = VT_DATE
150 // v = VT_VARIANT. Use this to pass data types that are not described
151 // in the format string. (For example SafeArrays).
152 // D = VT_DISPATCH
153 // U = VT_UNKNOWN
154 //
155 // ... Arguments of the property or method.
156 // Arguments are described by Format.
157 //
158
GetProperty(char * Name)159 bool COleAutomationControl::GetProperty (char* Name)
160 {
161 return Invoke (DISPATCH_PROPERTYGET, Name, NULL, NULL);
162 }
163
GetProperty(DISPID DispatchId)164 bool COleAutomationControl::GetProperty (DISPID DispatchId)
165 {
166 return Invoke (DISPATCH_PROPERTYGET, DispatchId, NULL, NULL);
167 }
168
PutProperty(char * Name,LPCTSTR Format,...)169 bool COleAutomationControl::PutProperty (char* Name, LPCTSTR Format, ...)
170 {
171 va_list ArgList;
172
173 va_start (ArgList, Format);
174 bool bRet = Invoke (DISPATCH_PROPERTYPUT, Name, Format, ArgList);
175 va_end (ArgList);
176 return bRet;
177 }
178
PutProperty(DISPID DispatchId,LPCTSTR Format,...)179 bool COleAutomationControl::PutProperty (DISPID DispatchId, LPCTSTR Format, ...)
180 {
181 va_list ArgList;
182
183 va_start (ArgList, Format);
184 bool bRet = Invoke (DISPATCH_PROPERTYPUT, DispatchId, Format, ArgList);
185 va_end (ArgList);
186 return bRet;
187 }
188
Method(char * Name,LPCTSTR Format,...)189 bool COleAutomationControl::Method (char* Name, LPCTSTR Format, ...)
190 {
191 va_list ArgList;
192
193 va_start (ArgList, Format);
194 bool bRet = Invoke (DISPATCH_METHOD, Name, Format, ArgList);
195 va_end (ArgList);
196 return bRet;
197 }
198
Method(DISPID DispatchId,LPCTSTR Format,...)199 bool COleAutomationControl::Method (DISPID DispatchId, LPCTSTR Format, ...)
200 {
201 va_list ArgList;
202
203 va_start (ArgList, Format);
204 bool bRet = Invoke (DISPATCH_METHOD, DispatchId, Format, ArgList);
205 va_end (ArgList);
206 return bRet;
207 }
208
Invoke(WORD Flags,char * Name,LPCTSTR Format,va_list ArgList)209 bool COleAutomationControl::Invoke (WORD Flags, char* Name,
210 LPCTSTR Format, va_list ArgList)
211 {
212 DISPID DispatchId = GetDispatchId (Name);
213 if (! DispatchId)
214 return false;
215 return Invoke (Flags, DispatchId, Format, ArgList);
216 }
217
Invoke(WORD Flags,DISPID DispatchId,LPCTSTR Format,va_list ArgList)218 bool COleAutomationControl::Invoke (WORD Flags, DISPID DispatchId,
219 LPCTSTR Format, va_list ArgList)
220 {
221 UINT ArgCount = 0;
222 VARIANTARG* ArgVector = NULL;
223
224 ASSERT (m_pDispatch);
225
226 DISPPARAMS DispatchParams;
227 memset (&DispatchParams, 0, sizeof (DispatchParams));
228
229 // Determine number of arguments
230 if (Format)
231 CountArgsInFormat (Format, &ArgCount);
232
233 // Property puts have a named argument that represents the value that
234 // the property is being assigned.
235 DISPID DispIdNamed = DISPID_PROPERTYPUT;
236 if (Flags & DISPATCH_PROPERTYPUT)
237 {
238 if (ArgCount == 0)
239 {
240 m_hResult = ResultFromScode (E_INVALIDARG);
241 return false;
242 }
243 DispatchParams.cNamedArgs = 1;
244 DispatchParams.rgdispidNamedArgs = &DispIdNamed;
245 }
246
247 if (ArgCount)
248 {
249 // Allocate memory for all VARIANTARG parameters
250 ArgVector = (VARIANTARG*) CoTaskMemAlloc (
251 ArgCount * sizeof (VARIANTARG));
252 if (! ArgVector)
253 {
254 m_hResult = ResultFromScode (E_OUTOFMEMORY);
255 return false;
256 }
257 memset (ArgVector, 0, sizeof (VARIANTARG) * ArgCount);
258
259 // Get ready to walk vararg list
260 LPCTSTR s = Format;
261
262 VARIANTARG *p = ArgVector + ArgCount - 1; // Params go in opposite order
263
264 for (;;)
265 {
266 VariantInit (p);
267 if (! (s = GetNextVarType (s, &p->vt)))
268 break;
269
270 if (p < ArgVector)
271 {
272 m_hResult = ResultFromScode (E_INVALIDARG);
273 goto Cleanup;
274 }
275 switch (p->vt)
276 {
277 case VT_I2:
278 V_I2 (p) = va_arg (ArgList, short);
279 break;
280 case VT_I4:
281 V_I4 (p) = va_arg (ArgList, long);
282 break;
283 case VT_R4:
284 V_R4 (p) = va_arg (ArgList, float);
285 break;
286 case VT_DATE:
287 case VT_R8:
288 V_R8 (p) = va_arg (ArgList, double);
289 break;
290 case VT_CY:
291 V_CY (p) = va_arg (ArgList, CY);
292 break;
293 case VT_BSTR:
294 V_BSTR (p) = SysAllocString (va_arg (ArgList,
295 OLECHAR*));
296 if (! p->bstrVal)
297 {
298 m_hResult = ResultFromScode (E_OUTOFMEMORY);
299 p->vt = VT_EMPTY;
300 goto Cleanup;
301 }
302 break;
303 case VT_DISPATCH:
304 V_DISPATCH (p) = va_arg (ArgList, LPDISPATCH);
305 break;
306 case VT_ERROR:
307 V_ERROR (p) = va_arg (ArgList, SCODE);
308 break;
309 case VT_BOOL:
310 V_BOOL (p) = va_arg (ArgList, BOOL) ? -1 : 0;
311 break;
312 case VT_VARIANT:
313 *p = va_arg (ArgList, VARIANTARG);
314 break;
315 case VT_UNKNOWN:
316 V_UNKNOWN (p) = va_arg (ArgList, LPUNKNOWN);
317 break;
318
319 case VT_I2 | VT_BYREF:
320 V_I2REF (p) = va_arg (ArgList, short*);
321 break;
322 case VT_I4 | VT_BYREF:
323 V_I4REF (p) = va_arg (ArgList, long*);
324 break;
325 case VT_R4 | VT_BYREF:
326 V_R4REF (p) = va_arg (ArgList, float*);
327 break;
328 case VT_R8 | VT_BYREF:
329 V_R8REF (p) = va_arg (ArgList, double*);
330 break;
331 case VT_DATE | VT_BYREF:
332 V_DATEREF (p) = va_arg (ArgList, DATE*);
333 break;
334 case VT_CY | VT_BYREF:
335 V_CYREF (p) = va_arg (ArgList, CY*);
336 break;
337 case VT_BSTR | VT_BYREF:
338 V_BSTRREF (p) = va_arg (ArgList, BSTR*);
339 break;
340 case VT_DISPATCH | VT_BYREF:
341 V_DISPATCHREF (p) = va_arg (ArgList, LPDISPATCH*);
342 break;
343 case VT_ERROR | VT_BYREF:
344 V_ERRORREF (p) = va_arg (ArgList, SCODE*);
345 break;
346 case VT_BOOL | VT_BYREF:
347 {
348 BOOL* pBool = va_arg (ArgList, BOOL*);
349
350 *pBool = 0;
351 V_BOOLREF (p) = (VARIANT_BOOL*) pBool;
352 }
353 break;
354 case VT_VARIANT | VT_BYREF:
355 V_VARIANTREF (p) = va_arg (ArgList, VARIANTARG*);
356 break;
357 case VT_UNKNOWN | VT_BYREF:
358 V_UNKNOWNREF (p) = va_arg (ArgList, LPUNKNOWN*);
359 break;
360
361 default:
362 {
363 m_hResult = ResultFromScode (E_INVALIDARG);
364 goto Cleanup;
365 }
366 break;
367 }
368
369 --p; // Get ready to fill next argument
370 }
371 }
372
373 DispatchParams.cArgs = ArgCount;
374 DispatchParams.rgvarg = ArgVector;
375
376 // Initialize return variant, in case caller forgot. Caller can pass
377 // NULL if return value is not expected.
378 VariantInit (&m_VariantResult);
379
380 // Make the call
381 m_hResult = m_pDispatch->Invoke (DispatchId, IID_NULL, LOCALE_USER_DEFAULT,
382 Flags, &DispatchParams, &m_VariantResult,
383 &m_ExceptionInfo, &m_nErrArg);
384
385 Cleanup:
386 // Cleanup any arguments that need cleanup
387 if (ArgCount)
388 {
389 VARIANTARG* p = ArgVector;
390
391 while (ArgCount--)
392 {
393 switch (p->vt)
394 {
395 case VT_BSTR:
396 VariantClear (p);
397 break;
398 }
399 ++p;
400 }
401 CoTaskMemFree (ArgVector);
402 }
403
404 return FAILED (m_hResult) ? false : true;
405 }
406
407 #define CASE_SCODE(sc) \
408 case sc: \
409 lstrcpy((char*)ErrName, (char*)#sc); \
410 break;
411
ErrDiag()412 void COleAutomationControl::ErrDiag ()
413 {
414 char ErrName[200];
415
416 SCODE sc = GetScode (m_hResult);
417 switch (sc)
418 {
419 // SCODE's defined in SCODE.H
420 CASE_SCODE (S_OK)
421 CASE_SCODE (S_FALSE)
422 CASE_SCODE (E_UNEXPECTED)
423 CASE_SCODE (E_OUTOFMEMORY)
424 CASE_SCODE (E_INVALIDARG)
425 CASE_SCODE (E_NOINTERFACE)
426 CASE_SCODE (E_POINTER)
427 CASE_SCODE (E_HANDLE)
428 CASE_SCODE (E_ABORT)
429 CASE_SCODE (E_FAIL)
430 CASE_SCODE (E_ACCESSDENIED)
431
432 // SCODE's defined in OLE2.H
433 CASE_SCODE (OLE_E_OLEVERB)
434 CASE_SCODE (OLE_E_ADVF)
435 CASE_SCODE (OLE_E_ENUM_NOMORE)
436 CASE_SCODE (OLE_E_ADVISENOTSUPPORTED)
437 CASE_SCODE (OLE_E_NOCONNECTION)
438 CASE_SCODE (OLE_E_NOTRUNNING)
439 CASE_SCODE (OLE_E_NOCACHE)
440 CASE_SCODE (OLE_E_BLANK)
441 CASE_SCODE (OLE_E_CLASSDIFF)
442 CASE_SCODE (OLE_E_CANT_GETMONIKER)
443 CASE_SCODE (OLE_E_CANT_BINDTOSOURCE)
444 CASE_SCODE (OLE_E_STATIC)
445 CASE_SCODE (OLE_E_PROMPTSAVECANCELLED)
446 CASE_SCODE (OLE_E_INVALIDRECT)
447 CASE_SCODE (OLE_E_WRONGCOMPOBJ)
448 CASE_SCODE (OLE_E_INVALIDHWND)
449 CASE_SCODE (OLE_E_NOT_INPLACEACTIVE)
450 CASE_SCODE (OLE_E_CANTCONVERT)
451 CASE_SCODE (OLE_E_NOSTORAGE)
452
453 CASE_SCODE (DV_E_FORMATETC)
454 CASE_SCODE (DV_E_DVTARGETDEVICE)
455 CASE_SCODE (DV_E_STGMEDIUM)
456 CASE_SCODE (DV_E_STATDATA)
457 CASE_SCODE (DV_E_LINDEX)
458 CASE_SCODE (DV_E_TYMED)
459 CASE_SCODE (DV_E_CLIPFORMAT)
460 CASE_SCODE (DV_E_DVASPECT)
461 CASE_SCODE (DV_E_DVTARGETDEVICE_SIZE)
462 CASE_SCODE (DV_E_NOIVIEWOBJECT)
463
464 CASE_SCODE (OLE_S_USEREG)
465 CASE_SCODE (OLE_S_STATIC)
466 CASE_SCODE (OLE_S_MAC_CLIPFORMAT)
467
468 CASE_SCODE (CONVERT10_E_OLESTREAM_GET)
469 CASE_SCODE (CONVERT10_E_OLESTREAM_PUT)
470 CASE_SCODE (CONVERT10_E_OLESTREAM_FMT)
471 CASE_SCODE (CONVERT10_E_OLESTREAM_BITMAP_TO_DIB)
472 CASE_SCODE (CONVERT10_E_STG_FMT)
473 CASE_SCODE (CONVERT10_E_STG_NO_STD_STREAM)
474 CASE_SCODE (CONVERT10_E_STG_DIB_TO_BITMAP)
475 CASE_SCODE (CONVERT10_S_NO_PRESENTATION)
476
477 CASE_SCODE (CLIPBRD_E_CANT_OPEN)
478 CASE_SCODE (CLIPBRD_E_CANT_EMPTY)
479 CASE_SCODE (CLIPBRD_E_CANT_SET)
480 CASE_SCODE (CLIPBRD_E_BAD_DATA)
481 CASE_SCODE (CLIPBRD_E_CANT_CLOSE)
482
483 CASE_SCODE (DRAGDROP_E_NOTREGISTERED)
484 CASE_SCODE (DRAGDROP_E_ALREADYREGISTERED)
485 CASE_SCODE (DRAGDROP_E_INVALIDHWND)
486 CASE_SCODE (DRAGDROP_S_DROP)
487 CASE_SCODE (DRAGDROP_S_CANCEL)
488 CASE_SCODE (DRAGDROP_S_USEDEFAULTCURSORS)
489
490 CASE_SCODE (OLEOBJ_E_NOVERBS)
491 CASE_SCODE (OLEOBJ_E_INVALIDVERB)
492 CASE_SCODE (OLEOBJ_S_INVALIDVERB)
493 CASE_SCODE (OLEOBJ_S_CANNOT_DOVERB_NOW)
494 CASE_SCODE (OLEOBJ_S_INVALIDHWND)
495 CASE_SCODE (INPLACE_E_NOTUNDOABLE)
496 CASE_SCODE (INPLACE_E_NOTOOLSPACE)
497 CASE_SCODE (INPLACE_S_TRUNCATED)
498
499 // SCODE's defined in COMPOBJ.H
500 CASE_SCODE (CO_E_NOTINITIALIZED)
501 CASE_SCODE (CO_E_ALREADYINITIALIZED)
502 CASE_SCODE (CO_E_CANTDETERMINECLASS)
503 CASE_SCODE (CO_E_CLASSSTRING)
504 CASE_SCODE (CO_E_IIDSTRING)
505 CASE_SCODE (CO_E_APPNOTFOUND)
506 CASE_SCODE (CO_E_APPSINGLEUSE)
507 CASE_SCODE (CO_E_ERRORINAPP)
508 CASE_SCODE (CO_E_DLLNOTFOUND)
509 CASE_SCODE (CO_E_ERRORINDLL)
510 CASE_SCODE (CO_E_WRONGOSFORAPP)
511 CASE_SCODE (CO_E_OBJNOTREG)
512 CASE_SCODE (CO_E_OBJISREG)
513 CASE_SCODE (CO_E_OBJNOTCONNECTED)
514 CASE_SCODE (CO_E_APPDIDNTREG)
515 CASE_SCODE (CLASS_E_NOAGGREGATION)
516 CASE_SCODE (CLASS_E_CLASSNOTAVAILABLE)
517 CASE_SCODE (REGDB_E_READREGDB)
518 CASE_SCODE (REGDB_E_WRITEREGDB)
519 CASE_SCODE (REGDB_E_KEYMISSING)
520 CASE_SCODE (REGDB_E_INVALIDVALUE)
521 CASE_SCODE (REGDB_E_CLASSNOTREG)
522 CASE_SCODE (REGDB_E_IIDNOTREG)
523 CASE_SCODE (RPC_E_CALL_REJECTED)
524 CASE_SCODE (RPC_E_CALL_CANCELED)
525 CASE_SCODE (RPC_E_CANTPOST_INSENDCALL)
526 CASE_SCODE (RPC_E_CANTCALLOUT_INASYNCCALL)
527 CASE_SCODE (RPC_E_CANTCALLOUT_INEXTERNALCALL)
528 CASE_SCODE (RPC_E_CONNECTION_TERMINATED)
529 CASE_SCODE (RPC_E_SERVER_DIED)
530 CASE_SCODE (RPC_E_CLIENT_DIED)
531 CASE_SCODE (RPC_E_INVALID_DATAPACKET)
532 CASE_SCODE (RPC_E_CANTTRANSMIT_CALL)
533 CASE_SCODE (RPC_E_CLIENT_CANTMARSHAL_DATA)
534 CASE_SCODE (RPC_E_CLIENT_CANTUNMARSHAL_DATA)
535 CASE_SCODE (RPC_E_SERVER_CANTMARSHAL_DATA)
536 CASE_SCODE (RPC_E_SERVER_CANTUNMARSHAL_DATA)
537 CASE_SCODE (RPC_E_INVALID_DATA)
538 CASE_SCODE (RPC_E_INVALID_PARAMETER)
539 CASE_SCODE (RPC_E_CANTCALLOUT_AGAIN)
540 CASE_SCODE (RPC_E_UNEXPECTED)
541
542 // SCODE's defined in DVOBJ.H
543 CASE_SCODE (DATA_S_SAMEFORMATETC)
544 CASE_SCODE (VIEW_E_DRAW)
545 CASE_SCODE (VIEW_S_ALREADY_FROZEN)
546 CASE_SCODE (CACHE_E_NOCACHE_UPDATED)
547 CASE_SCODE (CACHE_S_FORMATETC_NOTSUPPORTED)
548 CASE_SCODE (CACHE_S_SAMECACHE)
549 CASE_SCODE (CACHE_S_SOMECACHES_NOTUPDATED)
550
551 // SCODE's defined in STORAGE.H
552 CASE_SCODE (STG_E_INVALIDFUNCTION)
553 CASE_SCODE (STG_E_FILENOTFOUND)
554 CASE_SCODE (STG_E_PATHNOTFOUND)
555 CASE_SCODE (STG_E_TOOMANYOPENFILES)
556 CASE_SCODE (STG_E_ACCESSDENIED)
557 CASE_SCODE (STG_E_INVALIDHANDLE)
558 CASE_SCODE (STG_E_INSUFFICIENTMEMORY)
559 CASE_SCODE (STG_E_INVALIDPOINTER)
560 CASE_SCODE (STG_E_NOMOREFILES)
561 CASE_SCODE (STG_E_DISKISWRITEPROTECTED)
562 CASE_SCODE (STG_E_SEEKERROR)
563 CASE_SCODE (STG_E_WRITEFAULT)
564 CASE_SCODE (STG_E_READFAULT)
565 CASE_SCODE (STG_E_SHAREVIOLATION)
566 CASE_SCODE (STG_E_LOCKVIOLATION)
567 CASE_SCODE (STG_E_FILEALREADYEXISTS)
568 CASE_SCODE (STG_E_INVALIDPARAMETER)
569 CASE_SCODE (STG_E_MEDIUMFULL)
570 CASE_SCODE (STG_E_ABNORMALAPIEXIT)
571 CASE_SCODE (STG_E_INVALIDHEADER)
572 CASE_SCODE (STG_E_INVALIDNAME)
573 CASE_SCODE (STG_E_UNKNOWN)
574 CASE_SCODE (STG_E_UNIMPLEMENTEDFUNCTION)
575 CASE_SCODE (STG_E_INVALIDFLAG)
576 CASE_SCODE (STG_E_INUSE)
577 CASE_SCODE (STG_E_NOTCURRENT)
578 CASE_SCODE (STG_E_REVERTED)
579 CASE_SCODE (STG_E_CANTSAVE)
580 CASE_SCODE (STG_E_OLDFORMAT)
581 CASE_SCODE (STG_E_OLDDLL)
582 CASE_SCODE (STG_E_SHAREREQUIRED)
583 CASE_SCODE (STG_E_NOTFILEBASEDSTORAGE)
584 CASE_SCODE (STG_E_EXTANTMARSHALLINGS)
585 CASE_SCODE (STG_S_CONVERTED)
586
587 // SCODE's defined in STORAGE.H
588 CASE_SCODE (MK_E_CONNECTMANUALLY)
589 CASE_SCODE (MK_E_EXCEEDEDDEADLINE)
590 CASE_SCODE (MK_E_NEEDGENERIC)
591 CASE_SCODE (MK_E_UNAVAILABLE)
592 CASE_SCODE (MK_E_SYNTAX)
593 CASE_SCODE (MK_E_NOOBJECT)
594 CASE_SCODE (MK_E_INVALIDEXTENSION)
595 CASE_SCODE (MK_E_INTERMEDIATEINTERFACENOTSUPPORTED)
596 CASE_SCODE (MK_E_NOTBINDABLE)
597 CASE_SCODE (MK_E_NOTBOUND)
598 CASE_SCODE (MK_E_CANTOPENFILE)
599 CASE_SCODE (MK_E_MUSTBOTHERUSER)
600 CASE_SCODE (MK_E_NOINVERSE)
601 CASE_SCODE (MK_E_NOSTORAGE)
602 CASE_SCODE (MK_E_NOPREFIX)
603 CASE_SCODE (MK_S_REDUCED_TO_SELF)
604 CASE_SCODE (MK_S_ME)
605 CASE_SCODE (MK_S_HIM)
606 CASE_SCODE (MK_S_US)
607 CASE_SCODE (MK_S_MONIKERALREADYREGISTERED)
608
609 // SCODE's defined in DISPATCH.H
610 CASE_SCODE (DISP_E_UNKNOWNINTERFACE)
611 CASE_SCODE (DISP_E_MEMBERNOTFOUND)
612 CASE_SCODE (DISP_E_PARAMNOTFOUND)
613 CASE_SCODE (DISP_E_TYPEMISMATCH)
614 CASE_SCODE (DISP_E_UNKNOWNNAME)
615 CASE_SCODE (DISP_E_NONAMEDARGS)
616 CASE_SCODE (DISP_E_BADVARTYPE)
617 CASE_SCODE (DISP_E_EXCEPTION)
618 CASE_SCODE (DISP_E_OVERFLOW)
619 CASE_SCODE (DISP_E_BADINDEX)
620 CASE_SCODE (DISP_E_UNKNOWNLCID)
621 CASE_SCODE (DISP_E_ARRAYISLOCKED)
622 CASE_SCODE (DISP_E_BADPARAMCOUNT)
623 CASE_SCODE (DISP_E_PARAMNOTOPTIONAL)
624 CASE_SCODE (DISP_E_BADCALLEE)
625 CASE_SCODE (DISP_E_NOTACOLLECTION)
626
627 CASE_SCODE (TYPE_E_BUFFERTOOSMALL)
628 CASE_SCODE (TYPE_E_INVDATAREAD)
629 CASE_SCODE (TYPE_E_UNSUPFORMAT)
630 CASE_SCODE (TYPE_E_REGISTRYACCESS)
631 CASE_SCODE (TYPE_E_LIBNOTREGISTERED)
632 CASE_SCODE (TYPE_E_UNDEFINEDTYPE)
633 CASE_SCODE (TYPE_E_QUALIFIEDNAMEDISALLOWED)
634 CASE_SCODE (TYPE_E_INVALIDSTATE)
635 CASE_SCODE (TYPE_E_WRONGTYPEKIND)
636 CASE_SCODE (TYPE_E_ELEMENTNOTFOUND)
637 CASE_SCODE (TYPE_E_AMBIGUOUSNAME)
638 CASE_SCODE (TYPE_E_NAMECONFLICT)
639 CASE_SCODE (TYPE_E_UNKNOWNLCID)
640 CASE_SCODE (TYPE_E_DLLFUNCTIONNOTFOUND)
641 CASE_SCODE (TYPE_E_BADMODULEKIND)
642 CASE_SCODE (TYPE_E_SIZETOOBIG)
643 CASE_SCODE (TYPE_E_DUPLICATEID)
644 CASE_SCODE (TYPE_E_TYPEMISMATCH)
645 CASE_SCODE (TYPE_E_OUTOFBOUNDS)
646 CASE_SCODE (TYPE_E_IOERROR)
647 CASE_SCODE (TYPE_E_CANTCREATETMPFILE)
648 CASE_SCODE (TYPE_E_CANTLOADLIBRARY)
649 CASE_SCODE (TYPE_E_INCONSISTENTPROPFUNCS)
650 CASE_SCODE (TYPE_E_CIRCULARTYPE)
651
652 default:
653 lstrcpy (ErrName, "UNKNOWN SCODE");
654 }
655
656 char Buf[256];
657 sprintf (Buf, "An OLE error occurred:\r\nCode = %s\r\nResult = %lx.",
658 (char*) ErrName, m_hResult);
659 MessageBox (NULL, Buf, "OLE Error", MB_OK);
660 }
661
662
CountArgsInFormat(LPCTSTR Format,UINT * pArgCount)663 static bool CountArgsInFormat (LPCTSTR Format, UINT* pArgCount)
664 {
665 *pArgCount = 0;
666
667 if (! Format)
668 return true;
669
670 while (*Format)
671 {
672 if (*Format == '&')
673 Format++;
674
675 switch (*Format)
676 {
677 case 'b':
678 case 'i':
679 case 'I':
680 case 'r':
681 case 'R':
682 case 'c':
683 case 's':
684 case 'e':
685 case 'd':
686 case 'v':
687 case 'D':
688 case 'U':
689 ++ (*pArgCount);
690 Format++;
691 break;
692 case '\0':
693 default:
694 return false;
695 }
696 }
697 return true;
698 }
699
GetNextVarType(LPCTSTR Format,VARTYPE * pVarType)700 static LPCTSTR GetNextVarType (LPCTSTR Format, VARTYPE* pVarType)
701 {
702 *pVarType = 0;
703 if (*Format == '&')
704 {
705 *pVarType = VT_BYREF;
706 Format++;
707 if (!*Format)
708 return NULL;
709 }
710 switch (*Format)
711 {
712 case 'b':
713 *pVarType |= VT_BOOL;
714 break;
715 case 'i':
716 *pVarType |= VT_I2;
717 break;
718 case 'I':
719 *pVarType |= VT_I4;
720 break;
721 case 'r':
722 *pVarType |= VT_R4;
723 break;
724 case 'R':
725 *pVarType |= VT_R8;
726 break;
727 case 'c':
728 *pVarType |= VT_CY;
729 break;
730 case 's':
731 *pVarType |= VT_BSTR;
732 break;
733 case 'e':
734 *pVarType |= VT_ERROR;
735 break;
736 case 'd':
737 *pVarType |= VT_DATE;
738 break;
739 case 'v':
740 *pVarType |= VT_VARIANT;
741 break;
742 case 'U':
743 *pVarType |= VT_UNKNOWN;
744 break;
745 case 'D':
746 *pVarType |= VT_DISPATCH;
747 break;
748 case '\0':
749 return NULL; // End of Format string
750 default:
751 return NULL;
752 }
753 return ++Format;
754 }
755
756 #ifndef UNICODE
ConvertToAnsi(OLECHAR * sUnicode)757 char* ConvertToAnsi (OLECHAR* sUnicode)
758 {
759 static char BufAscii[MAX_OLE_STR];
760 return ConvertToAnsiBuf (sUnicode, BufAscii);
761 }
762
ConvertToAnsiBuf(OLECHAR * sUnicode,char * BufAscii)763 char* ConvertToAnsiBuf (OLECHAR* sUnicode, char* BufAscii)
764 {
765 WideCharToMultiByte (CP_ACP, 0, sUnicode, -1, BufAscii, MAX_OLE_STR, NULL, NULL);
766 return BufAscii;
767 }
768
ConvertToUnicode(char * sAscii)769 OLECHAR* ConvertToUnicode (char* sAscii)
770 {
771 static OLECHAR BufUnicode[MAX_OLE_STR];
772 return ConvertToUnicodeBuf (sAscii, BufUnicode);
773 }
774
ConvertToUnicodeBuf(char * sAscii,OLECHAR * BufUnicode)775 OLECHAR* ConvertToUnicodeBuf (char* sAscii, OLECHAR* BufUnicode)
776 {
777 MultiByteToWideChar (CP_ACP, 0, sAscii, -1, BufUnicode, MAX_OLE_STR);
778 return BufUnicode;
779 }
780 #endif
781
782