SynchronizationContext.WaitHelper Method

Note: This method is new in the .NET Framework version 2.0.

Helper function that waits for any or all the elements in the specified array to receive a signal.

This method is not CLS-compliant.  The CLS-compliant alternative is WaitAll(WaitHandle[],TimeSpan,Boolean).

Namespace: System.Threading
Assembly: mscorlib (in mscorlib.dll)

static int WaitHelper (
	array<IntPtr>^ waitHandles, 
	bool waitAll, 
	int millisecondsTimeout
/** @attribute CLSCompliantAttribute(false) */ 
protected static int WaitHelper (
	IntPtr[] waitHandles, 
	boolean waitAll, 
	int millisecondsTimeout
protected static function WaitHelper (
	waitHandles : IntPtr[], 
	waitAll : boolean, 
	millisecondsTimeout : int
) : int



An array of type IntPtr that contains the native operating system handles.


true to wait for all handles; false to wait for any handle.


The number of milliseconds to wait, or Timeout.Infinite (-1) to wait indefinitely.

Return Value

The array index of the object that satisfied the wait.

WaitHelper is a declaration for an unmanaged external helper function. WaitHelper is called by the Wait method to wait for a signal for the specified operating system handles.

Windows 98, Windows 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see System Requirements.

.NET Framework

Supported in: 2.0