MarshalAsAttribute Class

July 28, 2014

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Indicates how to marshal the data between managed and unmanaged code.

System.Object
  System.Attribute
    System.Runtime.InteropServices.MarshalAsAttribute

Namespace:  System.Runtime.InteropServices
Assembly:  mscorlib (in mscorlib.dll)

[AttributeUsageAttribute(AttributeTargets.Field|AttributeTargets.Parameter|AttributeTargets.ReturnValue, Inherited = false)]
public sealed class MarshalAsAttribute : Attribute

The MarshalAsAttribute type exposes the following members.

  NameDescription
Public methodMarshalAsAttribute(Int16)Initializes a new instance of the MarshalAsAttribute class with the specified UnmanagedType value.
Public methodMarshalAsAttribute(UnmanagedType)Initializes a new instance of the MarshalAsAttribute class with the specified UnmanagedType enumeration member.
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  NameDescription
Public propertyValueGets the UnmanagedType value the data is to be marshaled as.
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  NameDescription
Public methodEqualsInfrastructure. Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute.)
Protected methodFinalizeAllows an object to try to free resources and perform other cleanup operations before the Object is reclaimed by garbage collection. (Inherited from Object.)
Public methodGetHashCodeReturns the hash code for this instance. (Inherited from Attribute.)
Public methodGetTypeGets the Type of the current instance. (Inherited from Object.)
Public methodMatchWhen overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute.)
Protected methodMemberwiseCloneCreates a shallow copy of the current Object. (Inherited from Object.)
Public methodToStringReturns a string that represents the current object. (Inherited from Object.)
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  NameDescription
Public fieldArraySubTypeSpecifies the element type of the unmanaged UnmanagedType.LPArray or UnmanagedType.ByValArray.
Public fieldMarshalCookieProvides additional information to a custom marshaler.
Public fieldMarshalTypeSpecifies the fully qualified name of a custom marshaler.
Public fieldMarshalTypeRefImplements MarshalAsAttribute.MarshalType as a type.
Public fieldSizeConstIndicates the number of elements in the fixed-length array or the number of characters (not bytes) in a string to import.
Public fieldSizeParamIndexIndicates which parameter contains the count of array elements, much like size_is in COM, and is zero-based.
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Windows Phone OS

Supported in: 8.1, 8.0, 7.1, 7.0

Windows Phone

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

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