UnmanagedFunctionPointerAttribute Class

Definition

Namespace:

System.Runtime.InteropServices

Assembly:

System.Runtime.InteropServices.dll

Source:

UnmanagedFunctionPointerAttribute.cs

Controls the marshaling behavior of a delegate signature passed as an unmanaged function pointer to or from unmanaged code. This class cannot be inherited.

public ref class UnmanagedFunctionPointerAttribute sealed : Attribute

[System.AttributeUsage(System.AttributeTargets.Delegate, AllowMultiple=false, Inherited=false)]
public sealed class UnmanagedFunctionPointerAttribute : Attribute

[<System.AttributeUsage(System.AttributeTargets.Delegate, AllowMultiple=false, Inherited=false)>]
type UnmanagedFunctionPointerAttribute = class
    inherit Attribute

Public NotInheritable Class UnmanagedFunctionPointerAttribute
Inherits Attribute

Inheritance

Object

Attribute

UnmanagedFunctionPointerAttribute

Attributes

AttributeUsageAttribute

Remarks

The fields of the UnmanagedFunctionPointerAttribute attribute control various aspects of the transition of a delegate to an unmanaged function pointer, and are the same as the fields with identical names in the DllImportAttribute attribute. These fields are optional, but if you do not specify a field name, UnmanagedFunctionPointerAttribute is ignored.

For more information about using attributes, see Attributes.

Constructors

UnmanagedFunctionPointerAttribute(CallingConvention)

Initializes a new instance of the UnmanagedFunctionPointerAttribute class with the specified calling convention.

Fields

BestFitMapping	Enables or disables best-fit mapping behavior when converting Unicode characters to ANSI characters.
CharSet	Indicates how to marshal string parameters to the method, and controls name mangling.
SetLastError	Indicates whether the callee calls the SetLastError Windows API function before returning from the attributed method.
ThrowOnUnmappableChar	Enables or disables the throwing of an exception on an unmappable Unicode character that is converted to an ANSI "?" character.

Properties

CallingConvention	Gets the value of the calling convention.
TypeId	When implemented in a derived class, gets a unique identifier for this Attribute. (Inherited from Attribute)

Methods

Equals(Object)	Returns a value that indicates whether this instance is equal to a specified object. (Inherited from Attribute)
GetHashCode()	Returns the hash code for this instance. (Inherited from Attribute)
GetType()	Gets the Type of the current instance. (Inherited from Object)
IsDefaultAttribute()	When overridden in a derived class, indicates whether the value of this instance is the default value for the derived class. (Inherited from Attribute)
Match(Object)	When overridden in a derived class, returns a value that indicates whether this instance equals a specified object. (Inherited from Attribute)
MemberwiseClone()	Creates a shallow copy of the current Object. (Inherited from Object)
ToString()	Returns a string that represents the current object. (Inherited from Object)

See also

• DllImportAttribute
• GetDelegateForFunctionPointer(IntPtr, Type)
• GetFunctionPointerForDelegate(Delegate)