Was this page helpful?
Your feedback about this content is important. Let us know what you think.
Additional feedback?
1500 characters remaining
Export (0) Print
Expand All

Interlocked.Exchange Method (IntPtr, IntPtr)

Sets a platform-specific handle or pointer to a specified value and returns the original value, as an atomic operation.

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

public static IntPtr Exchange (
	ref IntPtr location1,
	IntPtr value
public static IntPtr Exchange (
	/** @ref */ IntPtr location1, 
	IntPtr value
Not applicable.



The variable to set to the specified value.


The value to which the location1 parameter is set.

Return Value

The original value of location1.

Exception typeCondition


The address of location1 is a null pointer.

Windows 98, Windows Server 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 Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 3.0, 2.0

Community Additions

© 2015 Microsoft