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