internal static bool SupportsWin7Identifiers()
{
IntPtr automationCoreHandle = LoadLibraryHelper.SecureLoadLibraryEx(DllImport.UIAutomationCore, IntPtr.Zero, UnsafeNativeMethods.LoadLibraryFlags.LOAD_LIBRARY_SEARCH_SYSTEM32);
if (automationCoreHandle != IntPtr.Zero)
{
IntPtr entryPoint = UnsafeNativeMethods.GetProcAddressNoThrow(new HandleRef(null, automationCoreHandle), StartListeningExportName);
if (entryPoint != IntPtr.Zero)
{
return(true);
}
}
return(false);
}
/// <summary>
/// Loads Wldp.dll and looks for WldpIsDynamicCodePolicyEnabled to determine whether DeviceGuard is enabled.
/// </summary>
private static bool IsDynamicCodePolicyEnabled()
{
bool isEnabled = false;
IntPtr hModule = IntPtr.Zero;
try
{
hModule = LoadLibraryHelper.SecureLoadLibraryEx(ExternDll.Wldp, IntPtr.Zero, UnsafeNativeMethods.LoadLibraryFlags.LOAD_LIBRARY_SEARCH_SYSTEM32);
if (hModule != IntPtr.Zero)
{
IntPtr entryPoint = UnsafeNativeMethods.GetProcAddressNoThrow(new HandleRef(null, hModule), "WldpIsDynamicCodePolicyEnabled");
if (entryPoint != IntPtr.Zero)
{
int hResult = UnsafeNativeMethods.WldpIsDynamicCodePolicyEnabled(out isEnabled);
if (hResult != NativeMethods.S_OK)
{
isEnabled = false;
}
}
}
}
catch
{
}
finally
{
if (hModule != IntPtr.Zero)
{
UnsafeNativeMethods.FreeLibrary(hModule);
}
}
return(isEnabled);
}