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createwaitabletimer (kernel32)

C# Signature:

static extern IntPtr CreateWaitableTimer(IntPtr lpTimerAttributes, bool bManualReset, string lpTimerName);

User-Defined Types:




Tips & Tricks:

Please add some!

Sample Code:

public static extern IntPtr CreateWaitableTimer(IntPtr lpTimerAttributes, bool bManualReset,
                         string lpTimerName);

public static extern bool SetWaitableTimer(IntPtr hTimer, [In] ref long pDueTime,
                        int lPeriod, TimerAPCProc pfnCompletionRoutine,
                        IntPtr lpArgToCompletionRoutine, bool fResume);

[DllImport("kernel32.dll", SetLastError = true, ExactSpelling = true)]
public static extern Int32 WaitForSingleObject(IntPtr handle, int milliseconds);
public static uint INFINITE = 0xFFFFFFFF;

The main code is :

private IntPtr handle;

private void shutdownToolStripMenuItem_Click(object sender, EventArgs e)
     DateTime dt = DateTime.Now;
     dt = dt.AddSeconds(30.0);
     long duetime = dt.ToFileTime();

     handle = Win32.PowerManagement.CreateWaitableTimer(IntPtr.Zero, true, "");
     Win32.PowerManagement.SetWaitableTimer(handle, ref duetime, 0, null, IntPtr.Zero, true);

     Thread t = new Thread(new ThreadStart(this.NewThread));

private void NewThread()
     int ret = Win32.PowerManagement.WaitForSingleObject(handle, (int)Win32.PowerManagement.INFINITE);
     MessageBox.Show("Wait object"); // ret = 0x00000000L here

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