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[wxWidgets.git] / include / wx / dlimpexp.h
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1/*
2 * Name: wx/dlimpexp.h
3 * Purpose: Macros for declaring DLL-imported/exported functions
4 * Author: Vadim Zeitlin
5 * Modified by:
6 * Created: 16.10.2003 (extracted from wx/defs.h)
7 * RCS-ID: $Id$
77ffb593 8 * Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
65571936 9 * Licence: wxWindows licence
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10 */
11
12/*
13 This is a C file, not C++ one, do not use C++ comments here!
14 */
15
16#ifndef _WX_DLIMPEXP_H_
17#define _WX_DLIMPEXP_H_
18
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19#if defined(HAVE_VISIBILITY)
20# define WXEXPORT __attribute__ ((visibility("default")))
21# define WXIMPORT __attribute__ ((visibility("default")))
22#elif defined(__WINDOWS__)
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23 /*
24 __declspec works in BC++ 5 and later, Watcom C++ 11.0 and later as well
49d2c0ad 25 as VC++.
0cc66b6c 26 */
49d2c0ad 27# if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__WATCOMC__)
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28# define WXEXPORT __declspec(dllexport)
29# define WXIMPORT __declspec(dllimport)
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30 /*
31 While gcc also supports __declspec(dllexport), it creates unusably huge
32 DLL files since gcc 4.5 (while taking horribly long amounts of time),
33 see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=43601. Because of this
34 we rely on binutils auto export/import support which seems to work
35 quite well for 4.5+.
36 */
37# elif defined(__GNUC__) && !wxCHECK_GCC_VERSION(4, 5)
38 /*
39 __declspec could be used here too but let's use the native
40 __attribute__ instead for clarity.
41 */
42# define WXEXPORT __attribute__((dllexport))
43# define WXIMPORT __attribute__((dllimport))
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44# endif
45#elif defined(__WXPM__)
46# if defined (__WATCOMC__)
47# define WXEXPORT __declspec(dllexport)
48 /*
49 __declspec(dllimport) prepends __imp to imported symbols. We do NOT
50 want that!
51 */
52# define WXIMPORT
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53# elif defined(__EMX__)
54# define WXEXPORT
55# define WXIMPORT
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56# elif (!(defined(__VISAGECPP__) && (__IBMCPP__ < 400 || __IBMC__ < 400 )))
57# define WXEXPORT _Export
58# define WXIMPORT _Export
59# endif
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60#elif defined(__CYGWIN__)
61# define WXEXPORT __declspec(dllexport)
62# define WXIMPORT __declspec(dllimport)
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63#endif
64
65/* for other platforms/compilers we don't anything */
66#ifndef WXEXPORT
67# define WXEXPORT
68# define WXIMPORT
69#endif
70
71/*
77ffb593 72 We support building wxWidgets as a set of several libraries but we don't
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73 support arbitrary combinations of libs/DLLs: either we build all of them as
74 DLLs (in which case WXMAKINGDLL is defined) or none (it isn't).
75
53a2db12 76 However we have a problem because we need separate WXDLLIMPEXP versions for
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77 different libraries as, for example, wxString class should be dllexported
78 when compiled in wxBase and dllimported otherwise, so we do define separate
79 WXMAKING/USINGDLL_XYZ constants for each component XYZ.
80 */
81#ifdef WXMAKINGDLL
82# if wxUSE_BASE
83# define WXMAKINGDLL_BASE
84# endif
85
86# define WXMAKINGDLL_NET
87# define WXMAKINGDLL_CORE
88# define WXMAKINGDLL_ADV
f5a9eef7 89# define WXMAKINGDLL_QA
0cc66b6c 90# define WXMAKINGDLL_HTML
0ae4d121 91# define WXMAKINGDLL_GL
0cc66b6c 92# define WXMAKINGDLL_XML
c846884b 93# define WXMAKINGDLL_XRC
5e4903f5 94# define WXMAKINGDLL_AUI
3c3ead1d 95# define WXMAKINGDLL_RIBBON
d4cd6b3e 96# define WXMAKINGDLL_PROPGRID
3b2cb431 97# define WXMAKINGDLL_RICHTEXT
c220a8ec 98# define WXMAKINGDLL_MEDIA
c079af66 99# define WXMAKINGDLL_STC
467d261e 100# define WXMAKINGDLL_WEBVIEW
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101#endif /* WXMAKINGDLL */
102
103/*
53a2db12 104 WXDLLIMPEXP_CORE maps to export declaration when building the DLL, to import
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105 declaration if using it or to nothing at all if we don't use wxWin as DLL
106 */
107#ifdef WXMAKINGDLL_BASE
108# define WXDLLIMPEXP_BASE WXEXPORT
109# define WXDLLIMPEXP_DATA_BASE(type) WXEXPORT type
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110# if defined(HAVE_VISIBILITY)
111# define WXDLLIMPEXP_INLINE_BASE WXEXPORT
112# else
113# define WXDLLIMPEXP_INLINE_BASE
114# endif
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115#elif defined(WXUSINGDLL)
116# define WXDLLIMPEXP_BASE WXIMPORT
117# define WXDLLIMPEXP_DATA_BASE(type) WXIMPORT type
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118# if defined(HAVE_VISIBILITY)
119# define WXDLLIMPEXP_INLINE_BASE WXIMPORT
120# else
121# define WXDLLIMPEXP_INLINE_BASE
122# endif
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123#else /* not making nor using DLL */
124# define WXDLLIMPEXP_BASE
125# define WXDLLIMPEXP_DATA_BASE(type) type
5f9c3802 126# define WXDLLIMPEXP_INLINE_BASE
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127#endif
128
129#ifdef WXMAKINGDLL_NET
130# define WXDLLIMPEXP_NET WXEXPORT
131# define WXDLLIMPEXP_DATA_NET(type) WXEXPORT type
132#elif defined(WXUSINGDLL)
133# define WXDLLIMPEXP_NET WXIMPORT
134# define WXDLLIMPEXP_DATA_NET(type) WXIMPORT type
135#else /* not making nor using DLL */
136# define WXDLLIMPEXP_NET
137# define WXDLLIMPEXP_DATA_NET(type) type
138#endif
139
140#ifdef WXMAKINGDLL_CORE
141# define WXDLLIMPEXP_CORE WXEXPORT
142# define WXDLLIMPEXP_DATA_CORE(type) WXEXPORT type
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143# if defined(HAVE_VISIBILITY)
144# define WXDLLIMPEXP_INLINE_CORE WXEXPORT
145# else
146# define WXDLLIMPEXP_INLINE_CORE
147# endif
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148#elif defined(WXUSINGDLL)
149# define WXDLLIMPEXP_CORE WXIMPORT
150# define WXDLLIMPEXP_DATA_CORE(type) WXIMPORT type
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151# if defined(HAVE_VISIBILITY)
152# define WXDLLIMPEXP_INLINE_CORE WXIMPORT
153# else
154# define WXDLLIMPEXP_INLINE_CORE
155# endif
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156#else /* not making nor using DLL */
157# define WXDLLIMPEXP_CORE
158# define WXDLLIMPEXP_DATA_CORE(type) type
74cc3ec1 159# define WXDLLIMPEXP_INLINE_CORE
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160#endif
161
162#ifdef WXMAKINGDLL_ADV
163# define WXDLLIMPEXP_ADV WXEXPORT
164# define WXDLLIMPEXP_DATA_ADV(type) WXEXPORT type
165#elif defined(WXUSINGDLL)
166# define WXDLLIMPEXP_ADV WXIMPORT
167# define WXDLLIMPEXP_DATA_ADV(type) WXIMPORT type
168#else /* not making nor using DLL */
169# define WXDLLIMPEXP_ADV
170# define WXDLLIMPEXP_DATA_ADV(type) type
171#endif
172
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173#ifdef WXMAKINGDLL_QA
174# define WXDLLIMPEXP_QA WXEXPORT
175# define WXDLLIMPEXP_DATA_QA(type) WXEXPORT type
176#elif defined(WXUSINGDLL)
177# define WXDLLIMPEXP_QA WXIMPORT
178# define WXDLLIMPEXP_DATA_QA(type) WXIMPORT type
179#else /* not making nor using DLL */
180# define WXDLLIMPEXP_QA
181# define WXDLLIMPEXP_DATA_QA(type) type
182#endif
183
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184#ifdef WXMAKINGDLL_HTML
185# define WXDLLIMPEXP_HTML WXEXPORT
186# define WXDLLIMPEXP_DATA_HTML(type) WXEXPORT type
187#elif defined(WXUSINGDLL)
188# define WXDLLIMPEXP_HTML WXIMPORT
189# define WXDLLIMPEXP_DATA_HTML(type) WXIMPORT type
190#else /* not making nor using DLL */
191# define WXDLLIMPEXP_HTML
192# define WXDLLIMPEXP_DATA_HTML(type) type
193#endif
194
195#ifdef WXMAKINGDLL_GL
196# define WXDLLIMPEXP_GL WXEXPORT
197#elif defined(WXUSINGDLL)
198# define WXDLLIMPEXP_GL WXIMPORT
199#else /* not making nor using DLL */
200# define WXDLLIMPEXP_GL
201#endif
202
203#ifdef WXMAKINGDLL_XML
204# define WXDLLIMPEXP_XML WXEXPORT
205#elif defined(WXUSINGDLL)
206# define WXDLLIMPEXP_XML WXIMPORT
207#else /* not making nor using DLL */
208# define WXDLLIMPEXP_XML
209#endif
210
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211#ifdef WXMAKINGDLL_XRC
212# define WXDLLIMPEXP_XRC WXEXPORT
213#elif defined(WXUSINGDLL)
214# define WXDLLIMPEXP_XRC WXIMPORT
215#else /* not making nor using DLL */
216# define WXDLLIMPEXP_XRC
217#endif
218
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219#ifdef WXMAKINGDLL_AUI
220# define WXDLLIMPEXP_AUI WXEXPORT
221#elif defined(WXUSINGDLL)
222# define WXDLLIMPEXP_AUI WXIMPORT
223#else /* not making nor using DLL */
224# define WXDLLIMPEXP_AUI
225#endif
226
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227#ifdef WXMAKINGDLL_RIBBON
228# define WXDLLIMPEXP_RIBBON WXEXPORT
229#elif defined(WXUSINGDLL)
230# define WXDLLIMPEXP_RIBBON WXIMPORT
231#else /* not making nor using DLL */
232# define WXDLLIMPEXP_RIBBON
233#endif
234
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235#ifdef WXMAKINGDLL_PROPGRID
236# define WXDLLIMPEXP_PROPGRID WXEXPORT
23318a53 237# define WXDLLIMPEXP_DATA_PROPGRID(type) WXEXPORT type
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238#elif defined(WXUSINGDLL)
239# define WXDLLIMPEXP_PROPGRID WXIMPORT
23318a53 240# define WXDLLIMPEXP_DATA_PROPGRID(type) WXIMPORT type
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241#else /* not making nor using DLL */
242# define WXDLLIMPEXP_PROPGRID
23318a53 243# define WXDLLIMPEXP_DATA_PROPGRID(type) type
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244#endif
245
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246#ifdef WXMAKINGDLL_RICHTEXT
247# define WXDLLIMPEXP_RICHTEXT WXEXPORT
248#elif defined(WXUSINGDLL)
249# define WXDLLIMPEXP_RICHTEXT WXIMPORT
250#else /* not making nor using DLL */
251# define WXDLLIMPEXP_RICHTEXT
252#endif
253
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254#ifdef WXMAKINGDLL_MEDIA
255# define WXDLLIMPEXP_MEDIA WXEXPORT
256#elif defined(WXUSINGDLL)
257# define WXDLLIMPEXP_MEDIA WXIMPORT
258#else /* not making nor using DLL */
259# define WXDLLIMPEXP_MEDIA
260#endif
261
c079af66 262#ifdef WXMAKINGDLL_STC
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263# define WXDLLIMPEXP_STC WXEXPORT
264# define WXDLLIMPEXP_DATA_STC(type) WXEXPORT type
c079af66 265#elif defined(WXUSINGDLL)
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266# define WXDLLIMPEXP_STC WXIMPORT
267# define WXDLLIMPEXP_DATA_STC(type) WXIMPORT type
c079af66 268#else /* not making nor using DLL */
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269# define WXDLLIMPEXP_STC
270# define WXDLLIMPEXP_DATA_STC(type) type
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271#endif
272
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273#ifdef WXMAKINGDLL_WEBVIEW
274# define WXDLLIMPEXP_WEBVIEW WXEXPORT
275# define WXDLLIMPEXP_DATA_WEBVIEW(type) WXEXPORT type
384b8d9f 276#elif defined(WXUSINGDLL)
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277# define WXDLLIMPEXP_WEBVIEW WXIMPORT
278# define WXDLLIMPEXP_DATA_WEBVIEW(type) WXIMPORT type
384b8d9f 279#else /* not making nor using DLL */
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280# define WXDLLIMPEXP_WEBVIEW
281# define WXDLLIMPEXP_DATA_WEBVIEW(type) type
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282#endif
283
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284/*
285 GCC warns about using __attribute__ (and also __declspec in mingw32 case) on
286 forward declarations while MSVC complains about forward declarations without
287 __declspec for the classes later declared with it, so we need a separate set
288 of macros for forward declarations to hide this difference:
289 */
290#if defined(HAVE_VISIBILITY) || (defined(__WINDOWS__) && defined(__GNUC__))
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291 #define WXDLLIMPEXP_FWD_BASE
292 #define WXDLLIMPEXP_FWD_NET
293 #define WXDLLIMPEXP_FWD_CORE
294 #define WXDLLIMPEXP_FWD_ADV
295 #define WXDLLIMPEXP_FWD_QA
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296 #define WXDLLIMPEXP_FWD_HTML
297 #define WXDLLIMPEXP_FWD_GL
298 #define WXDLLIMPEXP_FWD_XML
299 #define WXDLLIMPEXP_FWD_XRC
300 #define WXDLLIMPEXP_FWD_AUI
d4cd6b3e 301 #define WXDLLIMPEXP_FWD_PROPGRID
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302 #define WXDLLIMPEXP_FWD_RICHTEXT
303 #define WXDLLIMPEXP_FWD_MEDIA
304 #define WXDLLIMPEXP_FWD_STC
467d261e 305 #define WXDLLIMPEXP_FWD_WEBVIEW
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306#else
307 #define WXDLLIMPEXP_FWD_BASE WXDLLIMPEXP_BASE
308 #define WXDLLIMPEXP_FWD_NET WXDLLIMPEXP_NET
309 #define WXDLLIMPEXP_FWD_CORE WXDLLIMPEXP_CORE
310 #define WXDLLIMPEXP_FWD_ADV WXDLLIMPEXP_ADV
311 #define WXDLLIMPEXP_FWD_QA WXDLLIMPEXP_QA
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312 #define WXDLLIMPEXP_FWD_HTML WXDLLIMPEXP_HTML
313 #define WXDLLIMPEXP_FWD_GL WXDLLIMPEXP_GL
314 #define WXDLLIMPEXP_FWD_XML WXDLLIMPEXP_XML
315 #define WXDLLIMPEXP_FWD_XRC WXDLLIMPEXP_XRC
316 #define WXDLLIMPEXP_FWD_AUI WXDLLIMPEXP_AUI
d4cd6b3e 317 #define WXDLLIMPEXP_FWD_PROPGRID WXDLLIMPEXP_PROPGRID
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318 #define WXDLLIMPEXP_FWD_RICHTEXT WXDLLIMPEXP_RICHTEXT
319 #define WXDLLIMPEXP_FWD_MEDIA WXDLLIMPEXP_MEDIA
320 #define WXDLLIMPEXP_FWD_STC WXDLLIMPEXP_STC
467d261e 321 #define WXDLLIMPEXP_FWD_WEBVIEW WXDLLIMPEXP_WEBVIEW
0ff20b9f 322#endif
b5dbe15d 323
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324/* for backwards compatibility, define suffix-less versions too */
325#define WXDLLEXPORT WXDLLIMPEXP_CORE
326#define WXDLLEXPORT_DATA WXDLLIMPEXP_DATA_CORE
327
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328/*
329 MSVC up to 6.0 needs to be explicitly told to export template instantiations
330 used by the DLL clients, use this macro to do it like this:
331
332 template <typename T> class Foo { ... };
333 WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE( Foo<int> )
334
16361ec9 335 (notice that currently we only need this for wxBase and wxCore libraries)
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336 */
337#if defined(__VISUALC__) && (__VISUALC__ <= 1200)
338 #ifdef WXMAKINGDLL_BASE
339 #define WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE(decl) \
340 template class WXDLLIMPEXP_BASE decl;
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341 #define WXDLLIMPEXP_TEMPLATE_INSTANCE_CORE(decl) \
342 template class WXDLLIMPEXP_CORE decl;
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343 #else
344 /*
345 We need to disable this warning when using this macro, as
53a2db12 346 recommended by Microsoft itself:
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347
348 http://support.microsoft.com/default.aspx?scid=kb%3ben-us%3b168958
349 */
350 #pragma warning(disable:4231)
351
352 #define WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE(decl) \
353 extern template class WXDLLIMPEXP_BASE decl;
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354 #define WXDLLIMPEXP_TEMPLATE_INSTANCE_CORE(decl) \
355 extern template class WXDLLIMPEXP_CORE decl;
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356 #endif
357#else /* not VC <= 6 */
358 #define WXDLLIMPEXP_TEMPLATE_INSTANCE_BASE(decl)
16361ec9 359 #define WXDLLIMPEXP_TEMPLATE_INSTANCE_CORE(decl)
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360#endif /* VC6/others */
361
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362#endif /* _WX_DLIMPEXP_H_ */
363