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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: dde.cpp | |
3 | // Purpose: DDE classes | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 01/02/97 | |
7 | // RCS-ID: $Id$ | |
8 | // Copyright: (c) Julian Smart and Markus Holzem | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | #ifdef __GNUG__ | |
13 | #pragma implementation "dde.h" | |
14 | #endif | |
15 | ||
16 | // For compilers that support precompilation, includes "wx.h". | |
17 | #include "wx/wxprec.h" | |
18 | ||
19 | #ifdef __BORLANDC__ | |
20 | #pragma hdrstop | |
21 | #endif | |
22 | ||
23 | #ifndef WX_PRECOMP | |
24 | #include "wx/defs.h" | |
25 | #endif | |
26 | ||
27 | #if wxUSE_IPC | |
28 | ||
29 | #ifndef WX_PRECOMP | |
30 | #include "wx/utils.h" | |
31 | #include "wx/app.h" | |
32 | #endif | |
33 | ||
34 | #include "wx/module.h" | |
35 | #include "wx/dde.h" | |
36 | ||
37 | #include "wx/msw/private.h" | |
38 | #include <windows.h> | |
39 | #include <ddeml.h> | |
40 | ||
41 | #ifndef __TWIN32__ | |
42 | #if !wxUSE_NORLANDER_HEADERS | |
43 | #ifdef __GNUWIN32__ | |
44 | #include "wx/msw/gnuwin32/extra.h" | |
45 | #endif | |
46 | #endif | |
47 | #endif | |
48 | ||
49 | #include <string.h> | |
50 | ||
51 | #ifdef __WIN32__ | |
52 | #define _EXPORT /**/ | |
53 | #else | |
54 | #define _EXPORT _export | |
55 | #endif | |
56 | ||
57 | #if !USE_SHARED_LIBRARY | |
58 | IMPLEMENT_DYNAMIC_CLASS(wxDDEServer, wxServerBase) | |
59 | IMPLEMENT_DYNAMIC_CLASS(wxDDEClient, wxClientBase) | |
60 | IMPLEMENT_CLASS(wxDDEConnection, wxConnectionBase) | |
61 | #endif | |
62 | ||
63 | static wxDDEConnection *DDEFindConnection(HCONV hConv); | |
64 | static void DDEDeleteConnection(HCONV hConv); | |
65 | static wxDDEServer *DDEFindServer(const wxString& s); | |
66 | ||
67 | extern "C" HDDEDATA EXPENTRY _EXPORT _DDECallback( | |
68 | WORD wType, | |
69 | WORD wFmt, | |
70 | HCONV hConv, | |
71 | HSZ hsz1, | |
72 | HSZ hsz2, | |
73 | HDDEDATA hData, | |
74 | DWORD lData1, | |
75 | DWORD lData2); | |
76 | ||
77 | // Add topic name to atom table before using in conversations | |
78 | static HSZ DDEAddAtom(const wxString& string); | |
79 | static HSZ DDEGetAtom(const wxString& string); | |
80 | static void DDEPrintError(void); | |
81 | ||
82 | static DWORD DDEIdInst = 0L; | |
83 | static wxDDEConnection *DDECurrentlyConnecting = NULL; | |
84 | ||
85 | static wxList wxAtomTable(wxKEY_STRING); | |
86 | static wxList wxDDEClientObjects; | |
87 | static wxList wxDDEServerObjects; | |
88 | ||
89 | char *DDEDefaultIPCBuffer = NULL; | |
90 | int DDEDefaultIPCBufferSize = 0; | |
91 | ||
92 | /* | |
93 | * Initialization | |
94 | * | |
95 | */ | |
96 | ||
97 | static bool DDEInitialized = FALSE; | |
98 | ||
99 | void wxDDEInitialize() | |
100 | { | |
101 | if (DDEInitialized) | |
102 | return; | |
103 | DDEInitialized = TRUE; | |
104 | ||
105 | // Should insert filter flags | |
106 | DdeInitialize(&DDEIdInst, (PFNCALLBACK)MakeProcInstance( | |
107 | (FARPROC)_DDECallback, wxGetInstance()), | |
108 | APPCLASS_STANDARD, | |
109 | 0L); | |
110 | } | |
111 | ||
112 | /* | |
113 | * CleanUp | |
114 | */ | |
115 | ||
116 | void wxDDECleanUp() | |
117 | { | |
118 | if (DDEIdInst != 0) | |
119 | { | |
120 | DdeUninitialize(DDEIdInst); | |
121 | DDEIdInst = 0; | |
122 | } | |
123 | if (DDEDefaultIPCBuffer) | |
124 | delete [] DDEDefaultIPCBuffer ; | |
125 | } | |
126 | ||
127 | // A module to allow DDE initialization/cleanup | |
128 | // without calling these functions from app.cpp or from | |
129 | // the user's application. | |
130 | ||
131 | class wxDDEModule: public wxModule | |
132 | { | |
133 | DECLARE_DYNAMIC_CLASS(wxDDEModule) | |
134 | public: | |
135 | wxDDEModule() {} | |
136 | bool OnInit() { wxDDEInitialize(); return TRUE; }; | |
137 | void OnExit() { wxDDECleanUp(); }; | |
138 | }; | |
139 | ||
140 | IMPLEMENT_DYNAMIC_CLASS(wxDDEModule, wxModule) | |
141 | ||
142 | // Global find connection | |
143 | static wxDDEConnection *DDEFindConnection(HCONV hConv) | |
144 | { | |
145 | wxNode *node = wxDDEServerObjects.First(); | |
146 | wxDDEConnection *found = NULL; | |
147 | while (node && !found) | |
148 | { | |
149 | wxDDEServer *object = (wxDDEServer *)node->Data(); | |
150 | found = object->FindConnection((WXHCONV) hConv); | |
151 | node = node->Next(); | |
152 | } | |
153 | if (found) | |
154 | return found; | |
155 | ||
156 | node = wxDDEClientObjects.First(); | |
157 | while (node && !found) | |
158 | { | |
159 | wxDDEClient *object = (wxDDEClient *)node->Data(); | |
160 | found = object->FindConnection((WXHCONV) hConv); | |
161 | node = node->Next(); | |
162 | } | |
163 | return found; | |
164 | } | |
165 | ||
166 | // Global delete connection | |
167 | static void DDEDeleteConnection(HCONV hConv) | |
168 | { | |
169 | wxNode *node = wxDDEServerObjects.First(); | |
170 | bool found = FALSE; | |
171 | while (node && !found) | |
172 | { | |
173 | wxDDEServer *object = (wxDDEServer *)node->Data(); | |
174 | found = object->DeleteConnection((WXHCONV) hConv); | |
175 | node = node->Next(); | |
176 | } | |
177 | if (found) | |
178 | return; | |
179 | ||
180 | node = wxDDEServerObjects.First(); | |
181 | while (node && !found) | |
182 | { | |
183 | wxDDEClient *object = (wxDDEClient *)node->Data(); | |
184 | found = object->DeleteConnection((WXHCONV) hConv); | |
185 | node = node->Next(); | |
186 | } | |
187 | } | |
188 | ||
189 | // Find a server from a service name | |
190 | static wxDDEServer *DDEFindServer(const wxString& s) | |
191 | { | |
192 | wxNode *node = wxDDEServerObjects.First(); | |
193 | wxDDEServer *found = NULL; | |
194 | while (node && !found) | |
195 | { | |
196 | wxDDEServer *object = (wxDDEServer *)node->Data(); | |
197 | ||
198 | if (object->GetServiceName() == s) | |
199 | found = object; | |
200 | else node = node->Next(); | |
201 | } | |
202 | return found; | |
203 | } | |
204 | ||
205 | /* | |
206 | * Server | |
207 | * | |
208 | */ | |
209 | ||
210 | wxDDEServer::wxDDEServer(void) | |
211 | { | |
212 | m_serviceName = ""; | |
213 | wxDDEServerObjects.Append(this); | |
214 | } | |
215 | ||
216 | bool wxDDEServer::Create(const wxString& server_name) | |
217 | { | |
218 | m_serviceName = server_name; | |
219 | HSZ serviceName = DdeCreateStringHandle(DDEIdInst, WXSTRINGCAST server_name, CP_WINANSI); | |
220 | ||
221 | if (DdeNameService(DDEIdInst, serviceName, (HSZ) NULL, DNS_REGISTER) == 0) | |
222 | { | |
223 | DDEPrintError(); | |
224 | return FALSE; | |
225 | } | |
226 | return TRUE; | |
227 | } | |
228 | ||
229 | wxDDEServer::~wxDDEServer(void) | |
230 | { | |
231 | if (m_serviceName != wxT("")) | |
232 | { | |
233 | HSZ serviceName = DdeCreateStringHandle(DDEIdInst, WXSTRINGCAST m_serviceName, CP_WINANSI); | |
234 | if (DdeNameService(DDEIdInst, serviceName, NULL, DNS_UNREGISTER) == 0) | |
235 | { | |
236 | DDEPrintError(); | |
237 | } | |
238 | } | |
239 | wxDDEServerObjects.DeleteObject(this); | |
240 | ||
241 | wxNode *node = m_connections.First(); | |
242 | while (node) | |
243 | { | |
244 | wxDDEConnection *connection = (wxDDEConnection *)node->Data(); | |
245 | wxNode *next = node->Next(); | |
246 | connection->OnDisconnect(); // May delete the node implicitly | |
247 | node = next; | |
248 | } | |
249 | ||
250 | // If any left after this, delete them | |
251 | node = m_connections.First(); | |
252 | while (node) | |
253 | { | |
254 | wxDDEConnection *connection = (wxDDEConnection *)node->Data(); | |
255 | wxNode *next = node->Next(); | |
256 | delete connection; | |
257 | node = next; | |
258 | } | |
259 | } | |
260 | ||
261 | wxConnectionBase *wxDDEServer::OnAcceptConnection(const wxString& /* topic */) | |
262 | { | |
263 | return new wxDDEConnection; | |
264 | } | |
265 | ||
266 | wxDDEConnection *wxDDEServer::FindConnection(WXHCONV conv) | |
267 | { | |
268 | wxNode *node = m_connections.First(); | |
269 | wxDDEConnection *found = NULL; | |
270 | while (node && !found) | |
271 | { | |
272 | wxDDEConnection *connection = (wxDDEConnection *)node->Data(); | |
273 | if (connection->m_hConv == conv) | |
274 | found = connection; | |
275 | else node = node->Next(); | |
276 | } | |
277 | return found; | |
278 | } | |
279 | ||
280 | // Only delete the entry in the map, not the actual connection | |
281 | bool wxDDEServer::DeleteConnection(WXHCONV conv) | |
282 | { | |
283 | wxNode *node = m_connections.First(); | |
284 | bool found = FALSE; | |
285 | while (node && !found) | |
286 | { | |
287 | wxDDEConnection *connection = (wxDDEConnection *)node->Data(); | |
288 | if (connection->m_hConv == conv) | |
289 | { | |
290 | found = TRUE; | |
291 | delete node; | |
292 | } | |
293 | else node = node->Next(); | |
294 | } | |
295 | return found; | |
296 | } | |
297 | ||
298 | ||
299 | /* | |
300 | * Client | |
301 | * | |
302 | */ | |
303 | ||
304 | ||
305 | wxDDEClient::wxDDEClient(void) | |
306 | { | |
307 | wxDDEClientObjects.Append(this); | |
308 | } | |
309 | ||
310 | wxDDEClient::~wxDDEClient(void) | |
311 | { | |
312 | wxDDEClientObjects.DeleteObject(this); | |
313 | wxNode *node = m_connections.First(); | |
314 | while (node) | |
315 | { | |
316 | wxDDEConnection *connection = (wxDDEConnection *)node->Data(); | |
317 | delete connection; // Deletes the node implicitly (see ~wxDDEConnection) | |
318 | node = m_connections.First(); | |
319 | } | |
320 | } | |
321 | ||
322 | bool wxDDEClient::ValidHost(const wxString& /* host */) | |
323 | { | |
324 | return TRUE; | |
325 | } | |
326 | ||
327 | wxConnectionBase *wxDDEClient::MakeConnection(const wxString& /* host */, const wxString& server_name, const wxString& topic) | |
328 | { | |
329 | HSZ serviceName = DdeCreateStringHandle(DDEIdInst, WXSTRINGCAST server_name, CP_WINANSI); | |
330 | HSZ topic_atom = DdeCreateStringHandle(DDEIdInst, WXSTRINGCAST topic, CP_WINANSI); | |
331 | ||
332 | HCONV hConv = DdeConnect(DDEIdInst, serviceName, topic_atom, (PCONVCONTEXT)NULL); | |
333 | if (hConv == (HCONV) NULL) | |
334 | return (wxConnectionBase*) NULL; | |
335 | else | |
336 | { | |
337 | wxDDEConnection *connection = (wxDDEConnection*) OnMakeConnection(); | |
338 | if (connection) | |
339 | { | |
340 | connection->m_hConv = (WXHCONV) hConv; | |
341 | connection->m_topicName = topic; | |
342 | connection->m_client = this; | |
343 | m_connections.Append(connection); | |
344 | return connection; | |
345 | } | |
346 | else return (wxConnectionBase*) NULL; | |
347 | } | |
348 | } | |
349 | ||
350 | wxConnectionBase *wxDDEClient::OnMakeConnection(void) | |
351 | { | |
352 | return new wxDDEConnection; | |
353 | } | |
354 | ||
355 | wxDDEConnection *wxDDEClient::FindConnection(WXHCONV conv) | |
356 | { | |
357 | wxNode *node = m_connections.First(); | |
358 | wxDDEConnection *found = NULL; | |
359 | while (node && !found) | |
360 | { | |
361 | wxDDEConnection *connection = (wxDDEConnection *)node->Data(); | |
362 | if (connection->m_hConv == conv) | |
363 | found = connection; | |
364 | else node = node->Next(); | |
365 | } | |
366 | return found; | |
367 | } | |
368 | ||
369 | // Only delete the entry in the map, not the actual connection | |
370 | bool wxDDEClient::DeleteConnection(WXHCONV conv) | |
371 | { | |
372 | wxNode *node = m_connections.First(); | |
373 | bool found = FALSE; | |
374 | while (node && !found) | |
375 | { | |
376 | wxDDEConnection *connection = (wxDDEConnection *)node->Data(); | |
377 | if (connection->m_hConv == conv) | |
378 | { | |
379 | found = TRUE; | |
380 | delete node; | |
381 | } | |
382 | else node = node->Next(); | |
383 | } | |
384 | return found; | |
385 | } | |
386 | ||
387 | /* | |
388 | * Connection | |
389 | */ | |
390 | ||
391 | wxDDEConnection::wxDDEConnection(char *buffer, int size) | |
392 | { | |
393 | if (buffer == NULL) | |
394 | { | |
395 | if (DDEDefaultIPCBuffer == NULL) | |
396 | DDEDefaultIPCBuffer = new char[DDEDefaultIPCBufferSize]; | |
397 | m_bufPtr = DDEDefaultIPCBuffer; | |
398 | m_bufSize = DDEDefaultIPCBufferSize; | |
399 | } | |
400 | else | |
401 | { | |
402 | m_bufPtr = buffer; | |
403 | m_bufSize = size; | |
404 | } | |
405 | ||
406 | m_topicName = ""; | |
407 | ||
408 | m_client = NULL; | |
409 | m_server = NULL; | |
410 | ||
411 | m_hConv = 0; | |
412 | m_sendingData = NULL; | |
413 | } | |
414 | ||
415 | wxDDEConnection::wxDDEConnection(void) | |
416 | { | |
417 | m_hConv = 0; | |
418 | m_sendingData = NULL; | |
419 | m_server = NULL; | |
420 | m_client = NULL; | |
421 | if (DDEDefaultIPCBuffer == NULL) | |
422 | DDEDefaultIPCBuffer = new char[DDEDefaultIPCBufferSize]; | |
423 | ||
424 | m_bufPtr = DDEDefaultIPCBuffer; | |
425 | m_bufSize = DDEDefaultIPCBufferSize; | |
426 | m_topicName = ""; | |
427 | } | |
428 | ||
429 | wxDDEConnection::~wxDDEConnection(void) | |
430 | { | |
431 | if (m_server) | |
432 | m_server->GetConnections().DeleteObject(this); | |
433 | else | |
434 | m_client->GetConnections().DeleteObject(this); | |
435 | } | |
436 | ||
437 | // Calls that CLIENT can make | |
438 | bool wxDDEConnection::Disconnect(void) | |
439 | { | |
440 | DDEDeleteConnection((HCONV) m_hConv); | |
441 | return (DdeDisconnect((HCONV) m_hConv) != 0); | |
442 | } | |
443 | ||
444 | bool wxDDEConnection::Execute(const wxChar *data, int size, wxIPCFormat format) | |
445 | { | |
446 | DWORD result; | |
447 | if (size < 0) | |
448 | size = wxStrlen(data); | |
449 | ||
450 | size ++; | |
451 | ||
452 | return (DdeClientTransaction((LPBYTE)data, size, (HCONV) m_hConv, | |
453 | NULL, format, XTYP_EXECUTE, 5000, &result) ? TRUE : FALSE); | |
454 | } | |
455 | ||
456 | char *wxDDEConnection::Request(const wxString& item, int *size, wxIPCFormat format) | |
457 | { | |
458 | DWORD result; | |
459 | HSZ atom = DDEGetAtom(item); | |
460 | ||
461 | HDDEDATA returned_data = DdeClientTransaction(NULL, 0, (HCONV) m_hConv, | |
462 | atom, format, XTYP_REQUEST, 5000, &result); | |
463 | ||
464 | DWORD len = DdeGetData(returned_data, (LPBYTE)(m_bufPtr), m_bufSize, 0); | |
465 | ||
466 | DdeFreeDataHandle(returned_data); | |
467 | ||
468 | if (size) *size = (int)len; | |
469 | if (len > 0) | |
470 | { | |
471 | return m_bufPtr; | |
472 | } | |
473 | else return NULL; | |
474 | } | |
475 | ||
476 | bool wxDDEConnection::Poke(const wxString& item, wxChar *data, int size, wxIPCFormat format) | |
477 | { | |
478 | DWORD result; | |
479 | if (size < 0) | |
480 | size = wxStrlen(data); | |
481 | ||
482 | size ++; | |
483 | ||
484 | HSZ item_atom = DDEGetAtom(item); | |
485 | return (DdeClientTransaction((LPBYTE)data, size, (HCONV) m_hConv, | |
486 | item_atom, format, XTYP_POKE, 5000, &result) ? TRUE : FALSE); | |
487 | } | |
488 | ||
489 | bool wxDDEConnection::StartAdvise(const wxString& item) | |
490 | { | |
491 | DWORD result; | |
492 | HSZ atom = DDEGetAtom(item); | |
493 | ||
494 | return (DdeClientTransaction(NULL, 0, (HCONV) m_hConv, | |
495 | atom, CF_TEXT, XTYP_ADVSTART, 5000, &result) ? TRUE : FALSE); | |
496 | } | |
497 | ||
498 | bool wxDDEConnection::StopAdvise(const wxString& item) | |
499 | { | |
500 | DWORD result; | |
501 | HSZ atom = DDEGetAtom(item); | |
502 | ||
503 | return (DdeClientTransaction(NULL, 0, (HCONV) m_hConv, | |
504 | atom, CF_TEXT, XTYP_ADVSTOP, 5000, &result) ? TRUE : FALSE); | |
505 | } | |
506 | ||
507 | // Calls that SERVER can make | |
508 | bool wxDDEConnection::Advise(const wxString& item, wxChar *data, int size, wxIPCFormat format) | |
509 | { | |
510 | if (size < 0) | |
511 | size = wxStrlen(data); | |
512 | ||
513 | size ++; | |
514 | ||
515 | HSZ item_atom = DDEGetAtom(item); | |
516 | HSZ topic_atom = DDEGetAtom(m_topicName); | |
517 | m_sendingData = data; | |
518 | m_dataSize = size; | |
519 | m_dataType = format; | |
520 | return (DdePostAdvise(DDEIdInst, topic_atom, item_atom) != 0); | |
521 | } | |
522 | ||
523 | bool wxDDEConnection::OnDisconnect(void) | |
524 | { | |
525 | delete this; | |
526 | return TRUE; | |
527 | } | |
528 | ||
529 | ||
530 | #define DDERETURN HDDEDATA | |
531 | ||
532 | HDDEDATA EXPENTRY _EXPORT _DDECallback( | |
533 | WORD wType, | |
534 | WORD wFmt, | |
535 | HCONV hConv, | |
536 | HSZ hsz1, | |
537 | HSZ hsz2, | |
538 | HDDEDATA hData, | |
539 | DWORD /* lData1 */, | |
540 | DWORD /* lData2 */) | |
541 | { | |
542 | switch (wType) | |
543 | { | |
544 | case XTYP_CONNECT: | |
545 | { | |
546 | wxChar topic_buf[100]; | |
547 | wxChar server_buf[100]; | |
548 | DdeQueryString(DDEIdInst, hsz1, (LPTSTR)topic_buf, WXSIZEOF(topic_buf), | |
549 | CP_WINANSI); | |
550 | DdeQueryString(DDEIdInst, hsz2, (LPTSTR)server_buf, WXSIZEOF(topic_buf), | |
551 | CP_WINANSI); | |
552 | wxDDEServer *server = DDEFindServer(server_buf); | |
553 | if (server) | |
554 | { | |
555 | wxDDEConnection *connection = | |
556 | (wxDDEConnection*) server->OnAcceptConnection(wxString(topic_buf)); | |
557 | if (connection) | |
558 | { | |
559 | connection->m_server = server; | |
560 | server->GetConnections().Append(connection); | |
561 | connection->m_hConv = 0; | |
562 | connection->m_topicName = topic_buf; | |
563 | DDECurrentlyConnecting = connection; | |
564 | return (DDERETURN)(DWORD)TRUE; | |
565 | } | |
566 | } | |
567 | else return (DDERETURN)0; | |
568 | break; | |
569 | } | |
570 | ||
571 | case XTYP_CONNECT_CONFIRM: | |
572 | { | |
573 | if (DDECurrentlyConnecting) | |
574 | { | |
575 | DDECurrentlyConnecting->m_hConv = (WXHCONV) hConv; | |
576 | DDECurrentlyConnecting = NULL; | |
577 | return (DDERETURN)(DWORD)TRUE; | |
578 | } | |
579 | else return 0; | |
580 | break; | |
581 | } | |
582 | ||
583 | case XTYP_DISCONNECT: | |
584 | { | |
585 | wxDDEConnection *connection = DDEFindConnection(hConv); | |
586 | if (connection && connection->OnDisconnect()) | |
587 | { | |
588 | DDEDeleteConnection(hConv); // Delete mapping: hConv => connection | |
589 | return (DDERETURN)(DWORD)TRUE; | |
590 | } | |
591 | else return (DDERETURN)0; | |
592 | break; | |
593 | } | |
594 | ||
595 | case XTYP_EXECUTE: | |
596 | { | |
597 | wxDDEConnection *connection = DDEFindConnection(hConv); | |
598 | ||
599 | if (connection) | |
600 | { | |
601 | DWORD len = DdeGetData(hData, (LPBYTE)(connection->m_bufPtr), connection->m_bufSize, 0); | |
602 | DdeFreeDataHandle(hData); | |
603 | if (connection->OnExecute(connection->m_topicName, connection->m_bufPtr, (int)len, (wxIPCFormat) wFmt)) | |
604 | return (DDERETURN)(DWORD)DDE_FACK; | |
605 | else | |
606 | return (DDERETURN)DDE_FNOTPROCESSED; | |
607 | } else return (DDERETURN)DDE_FNOTPROCESSED; | |
608 | break; | |
609 | } | |
610 | ||
611 | case XTYP_REQUEST: | |
612 | { | |
613 | wxDDEConnection *connection = DDEFindConnection(hConv); | |
614 | ||
615 | if (connection) | |
616 | { | |
617 | wxChar item_name[200]; | |
618 | DdeQueryString(DDEIdInst, hsz2, (LPTSTR)item_name, WXSIZEOF(item_name), | |
619 | CP_WINANSI); | |
620 | ||
621 | int user_size = -1; | |
622 | char *data = connection->OnRequest(connection->m_topicName, wxString(item_name), &user_size, (wxIPCFormat) wFmt); | |
623 | if (data) | |
624 | { | |
625 | if (user_size < 0) user_size = strlen(data); | |
626 | ||
627 | HDDEDATA handle = DdeCreateDataHandle(DDEIdInst, | |
628 | (LPBYTE)data, user_size + 1, 0, hsz2, wFmt, 0); | |
629 | return (DDERETURN)handle; | |
630 | } else return (DDERETURN)0; | |
631 | } else return (DDERETURN)0; | |
632 | break; | |
633 | } | |
634 | ||
635 | case XTYP_POKE: | |
636 | { | |
637 | wxDDEConnection *connection = DDEFindConnection(hConv); | |
638 | ||
639 | if (connection) | |
640 | { | |
641 | wxChar item_name[200]; | |
642 | DdeQueryString(DDEIdInst, hsz2, (LPTSTR)item_name, WXSIZEOF(item_name), | |
643 | CP_WINANSI); | |
644 | DWORD len = DdeGetData(hData, (LPBYTE)(connection->m_bufPtr), connection->m_bufSize, 0); | |
645 | DdeFreeDataHandle(hData); | |
646 | connection->OnPoke(connection->m_topicName, wxString(item_name), connection->m_bufPtr, (int)len, (wxIPCFormat) wFmt); | |
647 | return (DDERETURN)(DWORD)DDE_FACK; | |
648 | } else return (DDERETURN)DDE_FNOTPROCESSED; | |
649 | break; | |
650 | } | |
651 | ||
652 | case XTYP_ADVSTART: | |
653 | { | |
654 | wxDDEConnection *connection = DDEFindConnection(hConv); | |
655 | ||
656 | if (connection) | |
657 | { | |
658 | wxChar item_name[200]; | |
659 | DdeQueryString(DDEIdInst, hsz2, (LPTSTR)item_name, WXSIZEOF(item_name), | |
660 | CP_WINANSI); | |
661 | ||
662 | return (DDERETURN)(DWORD)connection->OnStartAdvise(connection->m_topicName, wxString(item_name)); | |
663 | } else return (DDERETURN)0; | |
664 | break; | |
665 | } | |
666 | ||
667 | case XTYP_ADVSTOP: | |
668 | { | |
669 | wxDDEConnection *connection = DDEFindConnection(hConv); | |
670 | ||
671 | if (connection) | |
672 | { | |
673 | wxChar item_name[200]; | |
674 | DdeQueryString(DDEIdInst, hsz2, (LPTSTR)item_name, WXSIZEOF(item_name), | |
675 | CP_WINANSI); | |
676 | return (DDERETURN)(DWORD)connection->OnStopAdvise(connection->m_topicName, wxString(item_name)); | |
677 | } else return (DDERETURN)0; | |
678 | break; | |
679 | } | |
680 | ||
681 | case XTYP_ADVREQ: | |
682 | { | |
683 | wxDDEConnection *connection = DDEFindConnection(hConv); | |
684 | ||
685 | if (connection && connection->m_sendingData) | |
686 | { | |
687 | HDDEDATA data = DdeCreateDataHandle(DDEIdInst, | |
688 | (LPBYTE)connection->m_sendingData, | |
689 | connection->m_dataSize, 0, hsz2, connection->m_dataType, 0); | |
690 | connection->m_sendingData = NULL; | |
691 | return (DDERETURN)data; | |
692 | } else return (DDERETURN)NULL; | |
693 | break; | |
694 | } | |
695 | ||
696 | case XTYP_ADVDATA: | |
697 | { | |
698 | wxDDEConnection *connection = DDEFindConnection(hConv); | |
699 | ||
700 | if (connection) | |
701 | { | |
702 | wxChar item_name[200]; | |
703 | DdeQueryString(DDEIdInst, hsz2, (LPTSTR)item_name, WXSIZEOF(item_name), | |
704 | CP_WINANSI); | |
705 | ||
706 | DWORD len = DdeGetData(hData, (LPBYTE)(connection->m_bufPtr), connection->m_bufSize, 0); | |
707 | DdeFreeDataHandle(hData); | |
708 | if (connection->OnAdvise(connection->m_topicName, wxString(item_name), connection->m_bufPtr, (int)len, (wxIPCFormat) wFmt)) | |
709 | return (DDERETURN)(DWORD)DDE_FACK; | |
710 | else | |
711 | return (DDERETURN)DDE_FNOTPROCESSED; | |
712 | } else return (DDERETURN)DDE_FNOTPROCESSED; | |
713 | break; | |
714 | } | |
715 | } | |
716 | return 0; | |
717 | } | |
718 | ||
719 | // Atom table stuff | |
720 | static HSZ DDEAddAtom(const wxString& string) | |
721 | { | |
722 | HSZ atom = DdeCreateStringHandle(DDEIdInst, WXSTRINGCAST string, CP_WINANSI); | |
723 | wxAtomTable.Append(string, (wxObject *)atom); | |
724 | return atom; | |
725 | } | |
726 | ||
727 | static HSZ DDEGetAtom(const wxString& string) | |
728 | { | |
729 | wxNode *node = wxAtomTable.Find(string); | |
730 | if (node) | |
731 | return (HSZ)node->Data(); | |
732 | else | |
733 | { | |
734 | DDEAddAtom(string); | |
735 | return (HSZ)(wxAtomTable.Find(string)->Data()); | |
736 | } | |
737 | } | |
738 | ||
739 | void DDEPrintError(void) | |
740 | { | |
741 | wxChar *err = NULL; | |
742 | switch (DdeGetLastError(DDEIdInst)) | |
743 | { | |
744 | case DMLERR_ADVACKTIMEOUT: | |
745 | err = wxT("A request for a synchronous advise transaction has timed out."); | |
746 | break; | |
747 | case DMLERR_BUSY: | |
748 | err = wxT("The response to the transaction caused the DDE_FBUSY bit to be set."); | |
749 | break; | |
750 | case DMLERR_DATAACKTIMEOUT: | |
751 | err = wxT("A request for a synchronous data transaction has timed out."); | |
752 | break; | |
753 | case DMLERR_DLL_NOT_INITIALIZED: | |
754 | err = wxT("A DDEML function was called without first calling the DdeInitialize function,\n\ror an invalid instance identifier\n\rwas passed to a DDEML function."); | |
755 | break; | |
756 | case DMLERR_DLL_USAGE: | |
757 | err = wxT("An application initialized as APPCLASS_MONITOR has\n\rattempted to perform a DDE transaction,\n\ror an application initialized as APPCMD_CLIENTONLY has \n\rattempted to perform server transactions."); | |
758 | break; | |
759 | case DMLERR_EXECACKTIMEOUT: | |
760 | err = wxT("A request for a synchronous execute transaction has timed out."); | |
761 | break; | |
762 | case DMLERR_INVALIDPARAMETER: | |
763 | err = wxT("A parameter failed to be validated by the DDEML."); | |
764 | break; | |
765 | case DMLERR_LOW_MEMORY: | |
766 | err = wxT("A DDEML application has created a prolonged race condition."); | |
767 | break; | |
768 | case DMLERR_MEMORY_ERROR: | |
769 | err = wxT("A memory allocation failed."); | |
770 | break; | |
771 | case DMLERR_NO_CONV_ESTABLISHED: | |
772 | err = wxT("A client's attempt to establish a conversation has failed."); | |
773 | break; | |
774 | case DMLERR_NOTPROCESSED: | |
775 | err = wxT("A transaction failed."); | |
776 | break; | |
777 | case DMLERR_POKEACKTIMEOUT: | |
778 | err = wxT("A request for a synchronous poke transaction has timed out."); | |
779 | break; | |
780 | case DMLERR_POSTMSG_FAILED: | |
781 | err = wxT("An internal call to the PostMessage function has failed. "); | |
782 | break; | |
783 | case DMLERR_REENTRANCY: | |
784 | err = wxT("Reentrancy problem."); | |
785 | break; | |
786 | case DMLERR_SERVER_DIED: | |
787 | err = wxT("A server-side transaction was attempted on a conversation\n\rthat was terminated by the client, or the server\n\rterminated before completing a transaction."); | |
788 | break; | |
789 | case DMLERR_SYS_ERROR: | |
790 | err = wxT("An internal error has occurred in the DDEML."); | |
791 | break; | |
792 | case DMLERR_UNADVACKTIMEOUT: | |
793 | err = wxT("A request to end an advise transaction has timed out."); | |
794 | break; | |
795 | case DMLERR_UNFOUND_QUEUE_ID: | |
796 | err = wxT("An invalid transaction identifier was passed to a DDEML function.\n\rOnce the application has returned from an XTYP_XACT_COMPLETE callback,\n\rthe transaction identifier for that callback is no longer valid."); | |
797 | break; | |
798 | default: | |
799 | err = wxT("Unrecognised error type."); | |
800 | break; | |
801 | } | |
802 | MessageBox((HWND) NULL, (LPCTSTR)err, wxT("DDE Error"), MB_OK | MB_ICONINFORMATION); | |
803 | } | |
804 | ||
805 | #endif | |
806 | // wxUSE_IPC |