private static Term IpcTermToTerm(IpcTerm ipcTerm)
{
Term term = new Term();
term.From = DateTime.FromFileTime(ipcTerm.ftStart);
term.Duration = new TimeSpan((long)ipcTerm.dwDuration);
return term;
}
// License Properties - http://msdn.microsoft.com/en-us/library/windows/desktop/hh535287(v=vs.85).aspx
// IpcSetLicenseProperty() - http://msdn.microsoft.com/en-us/library/windows/desktop/hh535271(v=vs.85).aspx
// IPC_LI_VALIDITY_TIME - http://msdn.microsoft.com/en-us/library/windows/desktop/hh535287(v=vs.85).aspx
public static void IpcSetLicenseValidityTime(SafeInformationProtectionLicenseHandle licenseHandle, Term validityTime)
{
int hr = 0;
IpcTerm ipcValidityTime = TermToIpcTerm(validityTime);
IntPtr licenseInfoPtr = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(IpcTerm)));
try
{
Marshal.StructureToPtr(ipcValidityTime, licenseInfoPtr, false);
hr = UnsafeNativeMethods.IpcSetLicenseProperty(
licenseHandle,
false,
(uint)LicensePropertyType.ValidityTime,
licenseInfoPtr);
ThrowOnErrorCode(hr);
}
finally
{
Marshal.FreeHGlobal(licenseInfoPtr);
}
}
private static IpcTerm TermToIpcTerm(Term term)
{
IpcTerm ipcTerm = new IpcTerm();
ipcTerm.ftStart = new FileTime((long)term.From.ToFileTime());
ipcTerm.dwDuration = (ulong)term.Duration.Ticks;
return ipcTerm;
}
