Function resolveShellLink

libraries/lib-vst3/module_win32.cpp:249–294

------------------------------------------------------------------------

//------------------------------------------------------------------------
VST3::Optional<filesystem::path> resolveShellLink (const filesystem::path& p)
{
#if USE_FILESYSTEM
	return {filesystem::read_symlink (p)};
#else
#if USE_OLE
	Ole::instance ();

	IShellLink* shellLink = nullptr;
	if (!SUCCEEDED (CoCreateInstance (CLSID_ShellLink, nullptr, CLSCTX_INPROC_SERVER,
	                                  IID_IShellLink, reinterpret_cast<LPVOID*> (&shellLink))))
		return {};

	IPersistFile* persistFile = nullptr;
	if (!SUCCEEDED (
	        shellLink->QueryInterface (IID_IPersistFile, reinterpret_cast<void**> (&persistFile))))
		return {};

	if (!SUCCEEDED (persistFile->Load (p.wstring ().data (), STGM_READ)))
		return {};

	if (!SUCCEEDED (shellLink->Resolve (nullptr, MAKELONG (SLR_NO_UI, 500))))
		return {};

	WCHAR resolvedPath[MAX_PATH];
	if (!SUCCEEDED (shellLink->GetPath (resolvedPath, MAX_PATH, nullptr, SLGP_SHORTPATH)))
		return {};

	std::wstring longPath;
	longPath.resize (MAX_PATH);
	auto numChars =
	    GetLongPathNameW (resolvedPath, const_cast<wchar_t*> (longPath.data ()), MAX_PATH);
	if (!numChars)
		return {};
	longPath.resize (numChars);

	persistFile->Release ();
	shellLink->Release ();

	return {filesystem::path (longPath)};
#else
	// TODO for ARM
	return {};
#endif
#endif
}

//------------------------------------------------------------------------
void findFilesWithExt (const filesystem::path& path, const std::string& ext,