102 lines
3 KiB
C
102 lines
3 KiB
C
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//
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// DECLSPEC.H: Define the DLL_BASED and DLL_CLASS manifests for
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// DLL export/import decoration
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//
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// BUGBUG: Temporarily DISABLED until __declspec works better
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//
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// If a fixed header files is needed, define _DECLSPEC_WORKS_ and this
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// header file will work correctly.
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//
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#if !defined(_DECLSPEC_WORKS_)
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#if !defined(_DECLSPEC_H_)
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#define _DECLSPEC_H_
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// Create benign definitions for __declspec macros.
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#define DLL_TEMPLATE
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#define DLL_CLASS class
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#define DLL_BASED
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#endif
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#endif
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#if !defined(_DECLSPEC_H_)
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#define _DECLSPEC_H_
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//
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// DECLSPEC.H: Define the DLL_BASED and DLL_CLASS manifests for
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// DLL export/import decoration
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//
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// This file is based upon the following macro definitions:
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//
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// _CFRONT_PASS_ defined in MAKEFILE.DEF for CFRONT preprocessing;
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//
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// _cplusplus defined for all C++ compilation;
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//
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// NETUI_DLL defined in $(UI)\COMMON\SRC\DLLRULES.MK, which is
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// included by all components which live in NETUI DLLs.
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//
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// DLL_BASED_DEFEAT optional manifest that suppresses __declspec;
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//
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// This file generates two definitions:
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//
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// DLL_BASED which indicates that the external function, data item
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// or class lives in a NETUI DLL; expands to nothing,
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// "_declspec(dllimport)", or "_declspec(dllexport)"
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// depending upon the manifest above.
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//
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// DLL_CLASS which expands to "class", "class _declspec(dllimport)",
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// or "class _declspec(dllexport)" depending on the
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// manifests above.
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//
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// DLL_TEMPLATE expands to nothing outside of the DLLs; expands to
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// DLL_BASED inside the DLLs. In other words, the standard
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// template is local to the defining link scope. To
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// declare a template as "dllimport", another set of
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// macros exists which allows direct specification of the
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// desired decoration.
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//
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#if defined(_CFRONT_PASS_)
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#define DLL_BASED_DEFEAT
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#endif
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// Define DLL_BASED for all compiles
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#if defined(DLL_BASED_DEFEAT)
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// If CFront, no decoration allowed
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#define DLL_BASED
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#else
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#if defined(NETUI_DLL)
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// If C8 and inside DLL, export stuff
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#define DLL_BASED __declspec(dllexport)
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#else
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// If C8 and inside DLL, import stuff
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#define DLL_BASED __declspec(dllimport)
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#endif
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#endif
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// If C++, define the DLL_CLASS and DLL_TEMPLATE macros
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#if defined(__cplusplus)
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#if defined(DLL_BASED_DEFEAT)
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// If CFRONT, no decoration allowed
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#define DLL_CLASS class
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#define DLL_TEMPLATE
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#else
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#define DLL_CLASS class DLL_BASED
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#if defined(NETUI_DLL)
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// Templates expanded in the DLL are exported
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#define DLL_TEMPLATE DLL_BASED
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#else
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#define DLL_TEMPLATE
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#endif
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#endif
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#endif
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#endif // !_DECLSPEC_H_
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