Semaphore.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.
Assembly: System (in System.dll)
true if the named semaphore was opened successfully; otherwise, false.
[SECURITY CRITICAL]
Namespace:
System.Threading[ This article is for Windows Phone 8 developers. If you’re developing for Windows 10, see the latest documentation. ]
Opens the specified named semaphore, if it already exists, and returns a value that indicates whether the operation succeeded.
Assembly: System (in System.dll)
'Declaration <SecurityCriticalAttribute> _ Public Shared Function TryOpenExisting ( _ name As String, _ <OutAttribute> ByRef result As Semaphore _ ) As Boolean
Parameters
- name
- Type: System.String
The name of the system semaphore to open.
- result
- Type:
System.Threading.Semaphore
%
When this method returns, contains a Semaphore object that represents the named semaphore if the call succeeded, or Nothing if the call failed. This parameter is treated as uninitialized.
Return Value
Type: System.Booleantrue if the named semaphore was opened successfully; otherwise, false.
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