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POHow can I convert a native (NT) pathname into a Win32 path name?
 

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  1. POHow can I convert a native (NT) pathname into a Win32 path name?
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    <p>I'm working on reporting some information gleaned from native system APIs. (I know this is bad.... but I'm getting information that I can't get otherwise, and I have little issue with having to update my app if/when that time comes around.)</p> <p>The native API returns native pathnames, as seen by <code>ob</code>, i.e. <code>\SystemRoot\System32\Ntoskrnl.exe</code>, or <code>\??\C:\Program Files\VMWare Workstation\vstor-ws60.sys</code>.</p> <p>I can replace common prefixes, i.e.</p> <pre><code>std::wstring NtPathToWin32Path( std::wstring ntPath ) { if (boost::starts_with(ntPath, L"\\\\?\\")) { ntPath.erase(ntPath.begin(), ntPath.begin() + 4); return ntPath; } if (boost::starts_with(ntPath, L"\\??\\")) { ntPath.erase(ntPath.begin(), ntPath.begin() + 4); } if (boost::starts_with(ntPath, L"\\")) { ntPath.erase(ntPath.begin(), ntPath.begin() + 1); } if (boost::istarts_with(ntPath, L"globalroot\\")) { ntPath.erase(ntPath.begin(), ntPath.begin() + 11); } if (boost::istarts_with(ntPath, L"systemroot")) { ntPath.replace(ntPath.begin(), ntPath.begin() + 10, GetWindowsPath()); } if (boost::istarts_with(ntPath, L"windows")) { ntPath.replace(ntPath.begin(), ntPath.begin() + 7, GetWindowsPath()); } return ntPath; } TEST(Win32Path, NtPathDoubleQuestions) { ASSERT_EQ(L"C:\\Example", NtPathToWin32Path(L"\\??\\C:\\Example")); } TEST(Win32Path, NtPathUncBegin) { ASSERT_EQ(L"C:\\Example", NtPathToWin32Path(L"\\\\?\\C:\\Example")); } TEST(Win32Path, NtPathWindowsStart) { ASSERT_EQ(GetCombinedPath(GetWindowsPath(), L"Hello\\World"), NtPathToWin32Path(L"\\Windows\\Hello\\World")); } TEST(Win32Path, NtPathSystemrootStart) { ASSERT_EQ(GetCombinedPath(GetWindowsPath(), L"Hello\\World"), NtPathToWin32Path(L"\\SystemRoot\\Hello\\World")); } TEST(Win32Path, NtPathGlobalRootSystemRoot) { ASSERT_EQ(GetCombinedPath(GetWindowsPath(), L"Hello\\World"), NtPathToWin32Path(L"\\globalroot\\SystemRoot\\Hello\\World")); } </code></pre> <p>but I'd be strongly surprised if there's not some API, native or otherwise, which will convert these into Win32 path names. Does such an API exist?</p>
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    1. USBilly ONeal
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      1. POHow can I convert a native (NT) pathname into a Win32 path name?
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    1. CODoes the shell API function `PathCanonicalize` do the trick? http://msdn.microsoft.com/en-us/library/bb773569%28v=vs.85%29.aspx
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      1. POHow can I convert a native (NT) pathname into a Win32 path name?
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    2. CO@Praetorian: No, PathCanonicalize accepts Win32 paths. I'm trying to get a win32 path.
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      1. POHow can I convert a native (NT) pathname into a Win32 path name?
      1. USBilly ONeal
    3. COI don't know of any such function, and it's not always possible: NT can use paths that Win32 can't at all. Good luck anyhow…
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