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Remove dynamic loading of version.dll.

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The version info APIs GetFileVersionInfoSize, GetFileVersionInfo, VerQueryValue are available since Win2k no need to load them dynamically any more.
This commit is contained in:
Tobias Taschner 2015-09-15 23:53:58 +02:00
parent 6973f13cd1
commit e78be14ac1
1 changed files with 22 additions and 103 deletions
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125
src/msw/dlmsw.cpp
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@ -32,40 +32,6 @@
// private classes
// ----------------------------------------------------------------------------
// wrap some functions from version.dll: load them dynamically and provide a
// clean interface
class wxVersionDLL
{
public:
// load version.dll and bind to its functions
wxVersionDLL();
// return the file version as string, e.g. "x.y.z.w"
wxString GetFileVersion(const wxString& filename) const;
private:
typedef DWORD (APIENTRY *GetFileVersionInfoSize_t)(PTSTR, PDWORD);
typedef BOOL (APIENTRY *GetFileVersionInfo_t)(PTSTR, DWORD, DWORD, PVOID);
typedef BOOL (APIENTRY *VerQueryValue_t)(const PVOID, PTSTR, PVOID *, PUINT);
#define DO_FOR_ALL_VER_FUNCS(what) \
what(GetFileVersionInfoSize); \
what(GetFileVersionInfo); \
what(VerQueryValue)
#define DECLARE_VER_FUNCTION(func) func ## _t m_pfn ## func
DO_FOR_ALL_VER_FUNCS(DECLARE_VER_FUNCTION);
#undef DECLARE_VER_FUNCTION
wxDynamicLibrary m_dll;
wxDECLARE_NO_COPY_CLASS(wxVersionDLL);
};
// class used to create wxDynamicLibraryDetails objects
class WXDLLIMPEXP_BASE wxDynamicLibraryDetailsCreator
{
@ -74,87 +40,44 @@ public:
struct EnumModulesProcParams
{
wxDynamicLibraryDetailsArray *dlls;
wxVersionDLL *verDLL;
};
static BOOL CALLBACK
EnumModulesProc(const wxChar* name, DWORD64 base, ULONG size, PVOID data);
};
// ============================================================================
// wxVersionDLL implementation
// ============================================================================
// ----------------------------------------------------------------------------
// loading
// DLL version operations
// ----------------------------------------------------------------------------
wxVersionDLL::wxVersionDLL()
{
// don't give errors if DLL can't be loaded or used, we're prepared to
// handle it
wxLogNull noLog;
if ( m_dll.Load(wxT("version.dll"), wxDL_VERBATIM) )
{
// the functions we load have either 'A' or 'W' suffix depending on
// whether we're in ANSI or Unicode build
#ifdef UNICODE
#define SUFFIX L"W"
#else // ANSI
#define SUFFIX "A"
#endif // UNICODE/ANSI
#define LOAD_VER_FUNCTION(name) \
m_pfn ## name = (name ## _t)m_dll.GetSymbol(wxT(#name SUFFIX)); \
if ( !m_pfn ## name ) \
{ \
m_dll.Unload(); \
return; \
}
DO_FOR_ALL_VER_FUNCS(LOAD_VER_FUNCTION);
#undef LOAD_VER_FUNCTION
}
}
// ----------------------------------------------------------------------------
// wxVersionDLL operations
// ----------------------------------------------------------------------------
wxString wxVersionDLL::GetFileVersion(const wxString& filename) const
static wxString GetFileVersion(const wxString& filename)
{
wxString ver;
if ( m_dll.IsLoaded() )
{
wxChar *pc = const_cast<wxChar *>((const wxChar*) filename.t_str());
wxChar *pc = const_cast<wxChar *>((const wxChar*) filename.t_str());
DWORD dummy;
DWORD sizeVerInfo = m_pfnGetFileVersionInfoSize(pc, &dummy);
if ( sizeVerInfo )
DWORD dummy;
DWORD sizeVerInfo = ::GetFileVersionInfoSize(pc, &dummy);
if ( sizeVerInfo )
{
wxCharBuffer buf(sizeVerInfo);
if ( ::GetFileVersionInfo(pc, 0, sizeVerInfo, buf.data()) )
{
wxCharBuffer buf(sizeVerInfo);
if ( m_pfnGetFileVersionInfo(pc, 0, sizeVerInfo, buf.data()) )
void *pVer;
UINT sizeInfo;
if ( ::VerQueryValue(buf.data(),
const_cast<wxChar *>(wxT("\\")),
&pVer,
&sizeInfo) )
{
void *pVer;
UINT sizeInfo;
if ( m_pfnVerQueryValue(buf.data(),
const_cast<wxChar *>(wxT("\\")),
&pVer,
&sizeInfo) )
{
VS_FIXEDFILEINFO *info = (VS_FIXEDFILEINFO *)pVer;
ver.Printf(wxT("%d.%d.%d.%d"),
HIWORD(info->dwFileVersionMS),
LOWORD(info->dwFileVersionMS),
HIWORD(info->dwFileVersionLS),
LOWORD(info->dwFileVersionLS));
}
VS_FIXEDFILEINFO *info = (VS_FIXEDFILEINFO *)pVer;
ver.Printf(wxT("%d.%d.%d.%d"),
HIWORD(info->dwFileVersionMS),
LOWORD(info->dwFileVersionMS),
HIWORD(info->dwFileVersionLS),
LOWORD(info->dwFileVersionLS));
}
}
}
//else: we failed to load DLL, can't retrieve version info
return ver;
}
@ -191,7 +114,7 @@ wxDynamicLibraryDetailsCreator::EnumModulesProc(const wxChar* name,
if ( !fullname.empty() )
{
details->m_path = fullname;
details->m_version = params->verDLL->GetFileVersion(fullname);
details->m_version = GetFileVersion(fullname);
}
}
@ -258,12 +181,8 @@ wxDynamicLibraryDetailsArray wxDynamicLibrary::ListLoaded()
#if wxUSE_DBGHELP
if ( wxDbgHelpDLL::Init() )
{
// prepare to use functions for version info extraction
wxVersionDLL verDLL;
wxDynamicLibraryDetailsCreator::EnumModulesProcParams params;
params.dlls = &dlls;
params.verDLL = &verDLL;
if ( !wxDbgHelpDLL::CallEnumerateLoadedModules
(