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Use API_VERSION_NUMBER for debug help API version check.

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This symbol is not documented but seems to be defined in all the existing
versions of imagehlp.h, so use it instead of relying on a hack with checkng
whether DBHLPAPI symbol is defined.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@73793 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2013-04-08 14:15:35 +00:00
parent 252e3b2c29
commit 7d8741ed2d
2 changed files with 15 additions and 12 deletions
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2
docs/doxygen/mainpages/const_wxusedef.h
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@ -91,7 +91,7 @@ library:
@itemdef{wxUSE_DATAVIEWCTRL, Use wxDataViewCtrl class.}
@itemdef{wxUSE_DATEPICKCTRL, Use wxDatePickerCtrl class.}
@itemdef{wxUSE_DATETIME, Use wxDateTime and related classes.}
@itemdef{wxUSE_DBGHELP, Use wxDbgHelpDLL class.}
@itemdef{wxUSE_DBGHELP, Predefine as 0 to avoid using wxDbgHelpDLL and related classes.}
@itemdef{wxUSE_DC_TRANSFORM_MATRIX, Use wxDC::SetTransformMatrix() and related methods.}
@itemdef{wxUSE_DEBUG_CONTEXT, Use wxDebugContext class.}
@itemdef{wxUSE_DEBUG_NEW_ALWAYS, See @ref overview_debugging}

25
include/wx/msw/debughlp.h
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@ -20,18 +20,21 @@
#endif // __WXWINCE__
#include "wx/msw/private.h"
// we need to determine whether we have the declarations for the function in
// debughlp.dll version 5.81 (at least) and we check for DBHLPAPI to test this
//
// reasons:
// - VC6 version of imagehlp.h doesn't define it
// - VC7 one does
// - testing for compiler version doesn't work as you can install and use
// the new SDK headers with VC6
//
// in any case, the user may override by defining wxUSE_DBGHELP himself
// All known versions of imagehlp.h define API_VERSION_NUMBER but it's not
// documented, so deal with the possibility that it's not defined just in case.
#ifndef API_VERSION_NUMBER
#define API_VERSION_NUMBER 0
#endif
// wxUSE_DBGHELP is a bit special as it is not defined in wx/setup.h and we try
// to auto-detect whether we should be using debug help API or not ourselves
// below. However if the auto-detection fails, you can always predefine it as 0
// to avoid even trying.
#ifndef wxUSE_DBGHELP
#ifdef DBHLPAPI
// The version of imagehlp.h from VC6 (7) is too old and is missing some
// required symbols while the version from VC7 (9) is good enough. As we
// don't know anything about version 8, don't use it unless we can test it.
#if API_VERSION_NUMBER >= 9
#define wxUSE_DBGHELP 1
#else
#define wxUSE_DBGHELP 0