UnmanagedFunctionPointerAttribute UnmanagedFunctionPointerAttribute UnmanagedFunctionPointerAttribute UnmanagedFunctionPointerAttribute Class

Definition

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)]
[System.Runtime.InteropServices.ComVisible(true)]
public sealed class UnmanagedFunctionPointerAttribute : Attribute
type UnmanagedFunctionPointerAttribute = class
    inherit Attribute
Public NotInheritable Class UnmanagedFunctionPointerAttribute
Inherits Attribute
Inheritance
UnmanagedFunctionPointerAttributeUnmanagedFunctionPointerAttributeUnmanagedFunctionPointerAttributeUnmanagedFunctionPointerAttribute
Attributes

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) UnmanagedFunctionPointerAttribute(CallingConvention) UnmanagedFunctionPointerAttribute(CallingConvention) UnmanagedFunctionPointerAttribute(CallingConvention)

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

Fields

BestFitMapping BestFitMapping BestFitMapping BestFitMapping

Enables or disables best-fit mapping behavior when converting Unicode characters to ANSI characters.

CharSet CharSet CharSet CharSet

Indicates how to marshal string parameters to the method, and controls name mangling.

SetLastError SetLastError SetLastError SetLastError

Indicates whether the callee calls the SetLastError Win32 API function before returning from the attributed method.

ThrowOnUnmappableChar ThrowOnUnmappableChar ThrowOnUnmappableChar ThrowOnUnmappableChar

Enables or disables the throwing of an exception on an unmappable Unicode character that is converted to an ANSI "?" character.

Properties

CallingConvention CallingConvention CallingConvention CallingConvention

Gets the value of the calling convention.

TypeId TypeId TypeId TypeId

When implemented in a derived class, gets a unique identifier for this Attribute.

(Inherited from Attribute)

Methods

Equals(Object) Equals(Object) Equals(Object) Equals(Object)

Returns a value that indicates whether this instance is equal to a specified object.

(Inherited from Attribute)
GetHashCode() GetHashCode() GetHashCode() GetHashCode()

Returns the hash code for this instance.

(Inherited from Attribute)
GetType() GetType() GetType() GetType()

Gets the Type of the current instance.

(Inherited from Object)
IsDefaultAttribute() IsDefaultAttribute() IsDefaultAttribute() 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) Match(Object) Match(Object) Match(Object)

When overridden in a derived class, returns a value that indicates whether this instance equals a specified object.

(Inherited from Attribute)
MemberwiseClone() MemberwiseClone() MemberwiseClone() MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString() ToString() ToString() ToString()

Returns a string that represents the current object.

(Inherited from Object)

Explicit Interface Implementations

_Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr) _Attribute.GetIDsOfNames(Guid, IntPtr, UInt32, UInt32, IntPtr)

Maps a set of names to a corresponding set of dispatch identifiers.

(Inherited from Attribute)
_Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr) _Attribute.GetTypeInfo(UInt32, UInt32, IntPtr)

Retrieves the type information for an object, which can be used to get the type information for an interface.

(Inherited from Attribute)
_Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32) _Attribute.GetTypeInfoCount(UInt32)

Retrieves the number of type information interfaces that an object provides (either 0 or 1).

(Inherited from Attribute)
_Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr) _Attribute.Invoke(UInt32, Guid, UInt32, Int16, IntPtr, IntPtr, IntPtr, IntPtr)

Provides access to properties and methods exposed by an object.

(Inherited from Attribute)

Applies to

See Also