SafeHandleZeroOrMinusOneIsInvalid::IsInvalid Property
Silverlight
This type can be used only by trusted applications. If you try to use its members in a partial-trust application, your code will throw a MethodAccessException exception. This type is security-critical, which restricts its use.
Assembly: mscorlib (in mscorlib.dll)
[SECURITY CRITICAL]
Namespace:
Microsoft.Win32.SafeHandlesGets a value that indicates whether the handle is invalid.
Assembly: mscorlib (in mscorlib.dll)
For a list of the operating systems and browsers that are supported by Silverlight, see Supported Operating Systems and Browsers.
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