Mutex.TryOpenExisting Method
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.
[SECURITY CRITICAL]
[ 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.
Namespace: System.Threading
Assembly: mscorlib (in mscorlib.dll)
Syntax
<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
)
Parameters
- name
Type: System..::.String
The name of the system mutex to open.
- result
Type: System.Threading..::.Mutex%
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.
Return Value
Type: System..::.Boolean
true if the named mutex was opened successfully; otherwise, false.
Version Information
Windows Phone OS
Supported in: 8.1, 8.0