include/wx/dlimpexp.h

   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:      $Id$
   8  * Copyright:   (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
   9  * Licence:     wxWindows licence
  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
  19 #if defined(__WXMSW__)
  20     /*
  21        __declspec works in BC++ 5 and later, Watcom C++ 11.0 and later as well
  22        as VC++ and gcc
  23      */
  24 #    if defined(__VISUALC__) || defined(__BORLANDC__) || defined(__GNUC__) || defined(__WATCOMC__)
  25 #        define WXEXPORT __declspec(dllexport)
  26 #        define WXIMPORT __declspec(dllimport)
  27 #    else /* compiler doesn't support __declspec() */
  28 #        define WXEXPORT
  29 #        define WXIMPORT
  30 #    endif
  31 #elif defined(__WXPM__)
  32 #    if defined (__WATCOMC__)
  33 #        define WXEXPORT __declspec(dllexport)
  34         /*
  35            __declspec(dllimport) prepends __imp to imported symbols. We do NOT
  36            want that!
  37          */
  38 #        define WXIMPORT
  39 #    elif defined(__EMX__)
  40 #        define WXEXPORT
  41 #        define WXIMPORT
  42 #    elif (!(defined(__VISAGECPP__) && (__IBMCPP__ < 400 || __IBMC__ < 400 )))
  43 #        define WXEXPORT _Export
  44 #        define WXIMPORT _Export
  45 #    endif
  46 #elif defined(__WXMAC__) || defined(__WXCOCOA__)
  47 #    ifdef __MWERKS__
  48 #        define WXEXPORT __declspec(export)
  49 #        define WXIMPORT __declspec(import)
  50 #    endif
  51 #endif
  52
  53 /* for other platforms/compilers we don't anything */
  54 #ifndef WXEXPORT
  55 #    define WXEXPORT
  56 #    define WXIMPORT
  57 #endif
  58
  59 /*
  60    We support building wxWidgets as a set of several libraries but we don't
  61    support arbitrary combinations of libs/DLLs: either we build all of them as
  62    DLLs (in which case WXMAKINGDLL is defined) or none (it isn't).
  63
  64    However we have a problem because we need separate WXDLLEXPORT versions for
  65    different libraries as, for example, wxString class should be dllexported
  66    when compiled in wxBase and dllimported otherwise, so we do define separate
  67    WXMAKING/USINGDLL_XYZ constants for each component XYZ.
  68  */
  69 #ifdef WXMAKINGDLL
  70 #    if wxUSE_BASE
  71 #        define WXMAKINGDLL_BASE
  72 #    endif
  73
  74 #    define WXMAKINGDLL_NET
  75 #    define WXMAKINGDLL_CORE
  76 #    define WXMAKINGDLL_ADV
  77 #    define WXMAKINGDLL_ODBC
  78 #    define WXMAKINGDLL_DBGRID
  79 #    define WXMAKINGDLL_HTML
  80 #    define WXMAKINGDLL_XML
  81 #endif /* WXMAKINGDLL */
  82
  83 /*
  84    WXDLLEXPORT maps to export declaration when building the DLL, to import
  85    declaration if using it or to nothing at all if we don't use wxWin as DLL
  86  */
  87 #ifdef WXMAKINGDLL_BASE
  88 #    define WXDLLIMPEXP_BASE WXEXPORT
  89 #    define WXDLLIMPEXP_DATA_BASE(type) WXEXPORT type
  90 #elif defined(WXUSINGDLL)
  91 #    define WXDLLIMPEXP_BASE WXIMPORT
  92 #    define WXDLLIMPEXP_DATA_BASE(type) WXIMPORT type
  93 #else /* not making nor using DLL */
  94 #    define WXDLLIMPEXP_BASE
  95 #    define WXDLLIMPEXP_DATA_BASE(type) type
  96 #endif
  97
  98 #ifdef WXMAKINGDLL_NET
  99 #    define WXDLLIMPEXP_NET WXEXPORT
 100 #    define WXDLLIMPEXP_DATA_NET(type) WXEXPORT type
 101 #elif defined(WXUSINGDLL)
 102 #    define WXDLLIMPEXP_NET WXIMPORT
 103 #    define WXDLLIMPEXP_DATA_NET(type) WXIMPORT type
 104 #else /* not making nor using DLL */
 105 #    define WXDLLIMPEXP_NET
 106 #    define WXDLLIMPEXP_DATA_NET(type) type
 107 #endif
 108
 109 #ifdef WXMAKINGDLL_CORE
 110 #    define WXDLLIMPEXP_CORE WXEXPORT
 111 #    define WXDLLIMPEXP_DATA_CORE(type) WXEXPORT type
 112 #elif defined(WXUSINGDLL)
 113 #    define WXDLLIMPEXP_CORE WXIMPORT
 114 #    define WXDLLIMPEXP_DATA_CORE(type) WXIMPORT type
 115 #else /* not making nor using DLL */
 116 #    define WXDLLIMPEXP_CORE
 117 #    define WXDLLIMPEXP_DATA_CORE(type) type
 118 #endif
 119
 120 #ifdef WXMAKINGDLL_ADV
 121 #    define WXDLLIMPEXP_ADV WXEXPORT
 122 #    define WXDLLIMPEXP_DATA_ADV(type) WXEXPORT type
 123 #elif defined(WXUSINGDLL)
 124 #    define WXDLLIMPEXP_ADV WXIMPORT
 125 #    define WXDLLIMPEXP_DATA_ADV(type) WXIMPORT type
 126 #else /* not making nor using DLL */
 127 #    define WXDLLIMPEXP_ADV
 128 #    define WXDLLIMPEXP_DATA_ADV(type) type
 129 #endif
 130
 131 #ifdef WXMAKINGDLL_ODBC
 132 #    define WXDLLIMPEXP_ODBC WXEXPORT
 133 #    define WXDLLIMPEXP_DATA_ODBC(type) WXEXPORT type
 134 #elif defined(WXUSINGDLL)
 135 #    define WXDLLIMPEXP_ODBC WXIMPORT
 136 #    define WXDLLIMPEXP_DATA_ODBC(type) WXIMPORT type
 137 #else /* not making nor using DLL */
 138 #    define WXDLLIMPEXP_ODBC
 139 #    define WXDLLIMPEXP_DATA_ODBC(type) type
 140 #endif
 141
 142 #ifdef WXMAKINGDLL_DBGRID
 143 #    define WXDLLIMPEXP_DBGRID WXEXPORT
 144 #    define WXDLLIMPEXP_DATA_DBGRID(type) WXEXPORT type
 145 #elif defined(WXUSINGDLL)
 146 #    define WXDLLIMPEXP_DBGRID WXIMPORT
 147 #    define WXDLLIMPEXP_DATA_DBGRID(type) WXIMPORT type
 148 #else /* not making nor using DLL */
 149 #    define WXDLLIMPEXP_DBGRID
 150 #    define WXDLLIMPEXP_DATA_DBGRID(type) type
 151 #endif
 152
 153 #ifdef WXMAKINGDLL_HTML
 154 #    define WXDLLIMPEXP_HTML WXEXPORT
 155 #    define WXDLLIMPEXP_DATA_HTML(type) WXEXPORT type
 156 #elif defined(WXUSINGDLL)
 157 #    define WXDLLIMPEXP_HTML WXIMPORT
 158 #    define WXDLLIMPEXP_DATA_HTML(type) WXIMPORT type
 159 #else /* not making nor using DLL */
 160 #    define WXDLLIMPEXP_HTML
 161 #    define WXDLLIMPEXP_DATA_HTML(type) type
 162 #endif
 163
 164 #ifdef WXMAKINGDLL_GL
 165 #    define WXDLLIMPEXP_GL WXEXPORT
 166 #elif defined(WXUSINGDLL)
 167 #    define WXDLLIMPEXP_GL WXIMPORT
 168 #else /* not making nor using DLL */
 169 #    define WXDLLIMPEXP_GL
 170 #endif
 171
 172 #ifdef WXMAKINGDLL_XML
 173 #    define WXDLLIMPEXP_XML WXEXPORT
 174 #elif defined(WXUSINGDLL)
 175 #    define WXDLLIMPEXP_XML WXIMPORT
 176 #else /* not making nor using DLL */
 177 #    define WXDLLIMPEXP_XML
 178 #endif
 179
 180 /* for backwards compatibility, define suffix-less versions too */
 181 #define WXDLLEXPORT WXDLLIMPEXP_CORE
 182 #define WXDLLEXPORT_DATA WXDLLIMPEXP_DATA_CORE
 183
 184 #endif /* _WX_DLIMPEXP_H_ */
 185