UnmanagedFunctionPointerAttribute UnmanagedFunctionPointerAttribute UnmanagedFunctionPointerAttribute UnmanagedFunctionPointerAttribute Class

定义

控制作为非托管函数指针传递到非托管代码(或从非托管代码中传递)的委托签名的封送处理行为。Controls the marshaling behavior of a delegate signature passed as an unmanaged function pointer to or from unmanaged code. 此类不能被继承。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
继承
UnmanagedFunctionPointerAttributeUnmanagedFunctionPointerAttributeUnmanagedFunctionPointerAttributeUnmanagedFunctionPointerAttribute
属性

注解

UnmanagedFunctionPointerAttribute属性的字段控制将委托转换为非托管函数指针的各个方面, 并与DllImportAttribute属性中具有相同名称的字段相同。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. 这些字段是可选的, 但是如果不指定字段名称, UnmanagedFunctionPointerAttribute则会被忽略。These fields are optional, but if you do not specify a field name, UnmanagedFunctionPointerAttribute is ignored.

有关使用特性的详细信息, 请参阅特性For more information about using attributes, see Attributes.

构造函数

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

使用指定的调用约定初始化 UnmanagedFunctionPointerAttribute 类的新实例。Initializes a new instance of the UnmanagedFunctionPointerAttribute class with the specified calling convention.

字段

BestFitMapping BestFitMapping BestFitMapping BestFitMapping

将 Unicode 字符转换为 ANSI 字符时,启用或禁用最佳映射行为。Enables or disables best-fit mapping behavior when converting Unicode characters to ANSI characters.

CharSet CharSet CharSet CharSet

指示如何向方法封送字符串参数,并控制名称重整。Indicates how to marshal string parameters to the method, and controls name mangling.

SetLastError SetLastError SetLastError SetLastError

指示被调用方在从属性化方法返回之前是否调用 SetLastError Windows API 函数。Indicates whether the callee calls the SetLastError Windows API function before returning from the attributed method.

ThrowOnUnmappableChar ThrowOnUnmappableChar ThrowOnUnmappableChar ThrowOnUnmappableChar

启用或禁用在遇到已被转换为 ANSI“?”字符的无法映射的 Unicode 字符时引发异常。Enables or disables the throwing of an exception on an unmappable Unicode character that is converted to an ANSI "?" character.

属性

CallingConvention CallingConvention CallingConvention CallingConvention

获取调用约定的值。Gets the value of the calling convention.

TypeId TypeId TypeId TypeId

在派生类中实现时,获取此 Attribute 的唯一标识符。When implemented in a derived class, gets a unique identifier for this Attribute.

(Inherited from Attribute)

方法

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

返回一个值,该值指示此实例是否与指定的对象相等。Returns a value that indicates whether this instance is equal to a specified object.

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

返回此实例的哈希代码。Returns the hash code for this instance.

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

获取当前实例的 TypeGets the Type of the current instance.

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

在派生类中重写时,指示此实例的值是否是派生类的默认值。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)

当在派生类中重写时,返回一个指示此实例是否等于指定对象的值。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()

创建当前 Object 的浅表副本。Creates a shallow copy of the current Object.

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

返回表示当前对象的字符串。Returns a string that represents the current object.

(Inherited from Object)

显式界面实现

_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)

将一组名称映射为对应的一组调度标识符。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)

检索对象的类型信息,然后可以使用该信息获取接口的类型信息。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)

检索对象提供的类型信息接口的数量(0 或 1)。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)

提供对某一对象公开的属性和方法的访问。Provides access to properties and methods exposed by an object.

(Inherited from Attribute)

适用于

另请参阅