How Can I Reliably Detect Windows 10 Version Across Different Platforms and Versions?

Detecting Windows 10 Version: Cross-Platform and Version-Inclusive

In modern software development, detecting Windows 10 version across different platforms and versions, including Windows 7 and above, is crucial for cross-platform compatibility and accessing version-specific features. However, relying on Windows-specific functions like IsWindows10OrGreater() poses challenges when targeting Windows versions prior to Windows 10.

The Multi-Version Alternative

To overcome these limitations, a robust multi-version solution is necessary. RtlGetVersion provides a reliable method to retrieve the genuine OS version, bypassing compatibility shims that can often return inaccurate information. This function can be accessed through either the DDK or runtime dynamic linking as shown below:

<code class="C++">RTL_OSVERSIONINFOW GetRealOSVersion() {
    HMODULE hMod = ::GetModuleHandleW(L"ntdll.dll");
    if (hMod) {
        RtlGetVersionPtr fxPtr = (RtlGetVersionPtr)::GetProcAddress(hMod, "RtlGetVersion");
        if (fxPtr != nullptr) {
            RTL_OSVERSIONINFOW rovi = { 0 };
            rovi.dwOSVersionInfoSize = sizeof(rovi);
            if ( STATUS_SUCCESS == fxPtr(&amp;rovi) ) {
                return rovi;
            }
        }
    }
    RTL_OSVERSIONINFOW rovi = { 0 };
    return rovi;
}</code>

Additional Considerations

For enhanced details, the RTL_OSVERSIONINFOEXW structure can be utilized instead of RTL_OSVERSIONINFOW, ensuring the appropriate setting of the dwOSVersionInfoSize member. This approach delivers precise results for Windows 10, regardless of the presence or absence of a manifest.

Feature-Based Approach

Beyond Windows version detection, a feature-based approach is often regarded as a superior alternative. By targeting specific features rather than OS versions, applications can accommodate a wider range of system configurations and ensure optimal performance across different environments.

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