This header-only library provides an easy acces to NtDll.dll functions. NtDll.dll is a key component of Windows system, it is a kind of a "bridge"
between Win32 API (e.g. CreateFile, PostMessage, etc.) and Native NT API (NtCreateFile, RtlAddAccessAllowedAce, etc.).
It is quite beautiful to use it like the library allows:
constexpr BYTE data[] = { 0x00, 0x00, 0x00, 0x00 };
DWORD dwCrc = NtDll::RtlComputeCrc32( 0, data, _countof( data ) );Instead of the way that has been used for a years:
constexpr BYTE data[] = { 0x00, 0x00, 0x00, 0x00 };
HMODULE hNtDll = GetModuleHandle( L"ntdll.dll" );
if (!hNtDll) {
// Handle error
}
using PRtlComputeCrc32 = DWORD (WINAPI*) ( _In_ DWORD, _In_ CONST BYTE*, _In_ INT );
auto pfnRtlComputeCrc32 = reinterpret_cast<PRtlComputeCrc32>(
GetProcAddress( hNtDll, "RtlComputeCrc32" )
);
if (!pfnRtlComputeCrc32) {
// Handle error
}
DWORD dwCrc = pfnRtlComputeCrc32( 0, data, _countof( data ) );
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