C# Signature:
[DllImport("kernel32.dll")]
static extern IntPtr CreateWaitableTimer(IntPtr lpTimerAttributes, bool bManualReset, string lpTimerName);
User-Defined Types:
None.
Notes:
None.
Tips & Tricks:
Please add some!
Sample Code:
[DllImport("kernel32.dll")]
public static extern IntPtr CreateWaitableTimer(IntPtr lpTimerAttributes, bool bManualReset,
string lpTimerName);
[DllImport("kernel32.dll")]
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));
t.Start();
}
private void NewThread()
{
int ret = Win32.PowerManagement.WaitForSingleObject(handle, (int)Win32.PowerManagement.INFINITE);
MessageBox.Show("Wait object"); // ret = 0x00000000L here
}
Alternative Managed API:
Do you know one? Please contribute it!
