public override void Eject()
{
IntPtr fileHandle = IntPtr.Zero;
try {
// Create an handle to the drive
fileHandle = WindowsAPI.CreateFile(this.CreateDeviceIOPath,
WindowsAPI.GENERICREAD, 0, IntPtr.Zero,
WindowsAPI.OPENEXISTING, 0, IntPtr.Zero);
if ((int)fileHandle != WindowsAPI.INVALID_HANDLE)
{
// Eject the disk
uint returnedBytes;
WindowsAPI.DeviceIoControl(fileHandle, WindowsAPI.IOCTL_STORAGE_EJECT_MEDIA,
IntPtr.Zero, 0,
IntPtr.Zero, 0,
out returnedBytes,
IntPtr.Zero);
}
} catch {
throw new Exception(Marshal.GetLastWin32Error().ToString());
} finally {
// Close Drive Handle
WindowsAPI.CloseHandle(fileHandle);
fileHandle = IntPtr.Zero;
}
}
private static void UsDelay(int us)
{
long duetime = -10 * us;
int hWaitTimer = WindowsAPI.CreateWaitableTimer(WindowsAPI.NULL, true, WindowsAPI.NULL);
WindowsAPI.SetWaitableTimer(hWaitTimer, ref duetime, 0, WindowsAPI.NULL, WindowsAPI.NULL, false);
while (WindowsAPI.MsgWaitForMultipleObjects(1, ref hWaitTimer, false, Timeout.Infinite, WindowsAPI.QS_TIMER))
{
;
}
WindowsAPI.CloseHandle(hWaitTimer);
}
protected virtual void Disposing(bool disposing)
{
if (this.m_disposed)
{
return;
}
this.m_disposed = true;
WindowsAPI.CloseHandle(this.m_token);
if (this.m_context != null)
{
this.m_context.Dispose();
}
if (disposing)
{
GC.SuppressFinalize(this);
}
}
public override bool Kill()
{
Close();
if (!Exists)
{
return(true);
}
var pid = (uint)PID.ToInt32();
var prc = pid != 0 ? WindowsAPI.OpenProcess(WindowsAPI.PROCESS_ALL_ACCESS, false, pid) : IntPtr.Zero;
if (prc != IntPtr.Zero)
{
WindowsAPI.TerminateProcess(prc, 0);
WindowsAPI.CloseHandle(prc);
}
return(!Exists);
}
public IdentityImpersonationScope(string domainName, string userName, string password, WindowsAPI.LogonType logonType, WindowsAPI.LogonProvider logonProvider)
{
if (string.IsNullOrWhiteSpace(userName))
{
throw new ArgumentException("userName is null or empty.", "userName");
}
if (!WindowsAPI.LogonUser(userName, !string.IsNullOrWhiteSpace(domainName) ? domainName : ".", password, logonType, logonProvider, ref this.m_token))
{
throw new Win32Exception(Marshal.GetLastWin32Error());
}
try {
this.m_context = WindowsIdentity.Impersonate(this.m_token);
} catch (Exception ex) {
try {
WindowsAPI.CloseHandle(this.m_token);
} finally {
throw ex;
}
}
}
