For apps that target Windows Phone OS 7.0 and 7.1, do not use this member in your app. If you do, your code will throw a MethodAccessException. This member is security-critical, which restricts it to internal use by the .NET Framework for Windows Phone class library.
[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Opens the specified named mutex, if it already exists, and returns a value that indicates whether the operation succeeded.
Assembly: mscorlib (in mscorlib.dll)
<SecurityCriticalAttribute> _ Public Shared Function TryOpenExisting ( _ name As String, _ <OutAttribute> ByRef result As Mutex _ ) As Boolean
[SecurityCriticalAttribute] public static bool TryOpenExisting( string name, out Mutex result )
The name of the system mutex to open.
When this method returns, contains a Mutex object that represents the named mutex if the call succeeded, or nullNothingnullptra null reference (Nothing in Visual Basic) if the call failed. This parameter is treated as uninitialized.
true if the named mutex was opened successfully; otherwise, false.
Windows Phone OS
Supported in: 8.1, 8.0