共用方式為

ModuleBuilder.DefinePInvokeMethod 方法

  • 參考

定義

命名空間:
System.Reflection.Emit
組件:
System.Reflection.Emit.dll
組件:
mscorlib.dll
組件:
netstandard.dll

定義 PInvoke 方法。

多載

DefinePInvokeMethod(String, String, MethodAttributes, CallingConventions, Type, Type[], CallingConvention, CharSet)

使用指定的名稱、定義方法的 DLL 名稱、方法的屬性、方法的呼叫慣例、方法的傳回型別、方法的參數型別和 PInvoke 旗標，來定義 PInvoke 方法。
DefinePInvokeMethod(String, String, String, MethodAttributes, CallingConventions, Type, Type[], CallingConvention, CharSet)

使用指定的名稱、定義方法的 DLL 名稱、方法的屬性、方法的呼叫慣例、方法的傳回型別、方法的參數型別和 PInvoke 旗標，來定義 PInvoke 方法。

DefinePInvokeMethod(String, String, MethodAttributes, CallingConventions, Type, Type[], CallingConvention, CharSet)

來源:
ModuleBuilder.cs
來源:
ModuleBuilder.cs
來源:
ModuleBuilder.cs

使用指定的名稱、定義方法的 DLL 名稱、方法的屬性、方法的呼叫慣例、方法的傳回型別、方法的參數型別和 PInvoke 旗標，來定義 PInvoke 方法。

public:
 System::Reflection::Emit::MethodBuilder ^ DefinePInvokeMethod(System::String ^ name, System::String ^ dllName, System::Reflection::MethodAttributes attributes, System::Reflection::CallingConventions callingConvention, Type ^ returnType, cli::array <Type ^> ^ parameterTypes, System::Runtime::InteropServices::CallingConvention nativeCallConv, System::Runtime::InteropServices::CharSet nativeCharSet);
public System.Reflection.Emit.MethodBuilder DefinePInvokeMethod (string name, string dllName, System.Reflection.MethodAttributes attributes, System.Reflection.CallingConventions callingConvention, Type? returnType, Type[]? parameterTypes, System.Runtime.InteropServices.CallingConvention nativeCallConv, System.Runtime.InteropServices.CharSet nativeCharSet);
public System.Reflection.Emit.MethodBuilder DefinePInvokeMethod (string name, string dllName, System.Reflection.MethodAttributes attributes, System.Reflection.CallingConventions callingConvention, Type returnType, Type[] parameterTypes, System.Runtime.InteropServices.CallingConvention nativeCallConv, System.Runtime.InteropServices.CharSet nativeCharSet);
member this.DefinePInvokeMethod : string * string * System.Reflection.MethodAttributes * System.Reflection.CallingConventions * Type * Type[] * System.Runtime.InteropServices.CallingConvention * System.Runtime.InteropServices.CharSet -> System.Reflection.Emit.MethodBuilder
Public Function DefinePInvokeMethod (name As String, dllName As String, attributes As MethodAttributes, callingConvention As CallingConventions, returnType As Type, parameterTypes As Type(), nativeCallConv As CallingConvention, nativeCharSet As CharSet) As MethodBuilder

參數

name
String

PInvoke 方法的名稱。 name 不能包含內嵌的 null。

dllName
String

PInvoke 方法定義所在的 DLL 名稱。

attributes
MethodAttributes

方法的屬性。

callingConvention
CallingConventions

方法的呼叫慣例。

returnType
Type

方法的傳回類型。

parameterTypes
Type[]

方法參數的類型。

nativeCallConv
CallingConvention

原生呼叫慣例。

nativeCharSet
CharSet

方法的原生字元集。

傳回

MethodBuilder

已定義的 PInvoke 方法。

例外狀況

ArgumentException

方法不是靜態的，或者包含型別 (Containing Type) 是介面。

-或-

這是抽象方法。

-或-

方法之前已定義過。

ArgumentNullException

name 或 dllName 為 null。

InvalidOperationException

包含型別先前已使用 CreateType() 來建立。

範例

下列範例說明如何使用 DefinePInvokeMethod 方法來為 Windows API 中的外部 Unmanaged 方法MessageBoxA建立 MethodBuilder 。 此範例會顯示含有 [重試 ] 和 [ 取消] 按鈕的消息框，並顯示消息框中的傳回值。

重要

若要取得非零的傳回值，您必須在使用 MethodBuilder.GetMethodImplementationFlags 和 MethodBuilder.SetImplementationFlags 方法建立 MethodBuilder之後加入MethodImplAttributes.PreserveSig方法實作旗標。

using namespace System;
using namespace System::Reflection;
using namespace System::Reflection::Emit;
using namespace System::Runtime::InteropServices;

const int MB_RETRYCANCEL = 5;

void main()
{
   AssemblyName^ myAssemblyName = gcnew AssemblyName("TempAssembly");

   // Define a dynamic assembly in the current application domain.
   AssemblyBuilder^ myAssemblyBuilder = 
      AppDomain::CurrentDomain->DefineDynamicAssembly(
                  myAssemblyName, AssemblyBuilderAccess::Run);

   // Define a dynamic module in "TempAssembly" assembly.
   ModuleBuilder^ myModuleBuilder = 
      myAssemblyBuilder->DefineDynamicModule("TempModule");

   array<Type^>^ paramTypes = 
      { int::typeid, String::typeid, String::typeid, int::typeid };

   // Define a PInvoke method.
   MethodBuilder^ piMethodBuilder = myModuleBuilder->DefinePInvokeMethod(
      "MessageBoxA",
      "user32.dll",
      MethodAttributes::Public | MethodAttributes::Static | MethodAttributes::PinvokeImpl,
      CallingConventions::Standard,
      int::typeid,
      paramTypes,
      CallingConvention::Winapi,
      CharSet::Ansi);

   // Add PreserveSig to the method implementation flags. NOTE: If this line
   // is commented out, the return value will be zero when the method is
   // invoked.
   piMethodBuilder->SetImplementationFlags(
      piMethodBuilder->GetMethodImplementationFlags() | MethodImplAttributes::PreserveSig);

   // Create global methods.
   myModuleBuilder->CreateGlobalFunctions();

   // Arguments for calling the method.
   array<Object^>^ arguments = 
      { (Object^)(int) 0, "Hello World", "Title", MB_RETRYCANCEL };

   MethodInfo^ pinvokeMethod = myModuleBuilder->GetMethod("MessageBoxA");
   Console::WriteLine("Testing module-level PInvoke method created with DefinePInvokeMethod...");
   Console::WriteLine("Message box returned: {0}", 
      pinvokeMethod->Invoke(nullptr, arguments));
};


/* This code example produces input similar to the following:

Testing module-level PInvoke method created with DefinePInvokeMethod...
Message box returned: 4
 */

using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.InteropServices;

namespace PInvoke
{
   public class Example
   {
      const int MB_RETRYCANCEL = 5;

      static void Main()
      {
         AssemblyName myAssemblyName = new AssemblyName("TempAssembly");

         // Define a dynamic assembly in the current application domain.
         AssemblyBuilder myAssemblyBuilder =
            AppDomain.CurrentDomain.DefineDynamicAssembly(
                        myAssemblyName, AssemblyBuilderAccess.Run);

         // Define a dynamic module in "TempAssembly" assembly.
         ModuleBuilder myModuleBuilder =
            myAssemblyBuilder.DefineDynamicModule("TempModule");

         Type[] paramTypes = { typeof(int), typeof(string), typeof(string), typeof(int) };

         // Define a PInvoke method.
         MethodBuilder piMethodBuilder = myModuleBuilder.DefinePInvokeMethod(
            "MessageBoxA",
            "user32.dll",
            MethodAttributes.Public | MethodAttributes.Static | MethodAttributes.PinvokeImpl,
            CallingConventions.Standard,
            typeof(int),
            paramTypes,
            CallingConvention.Winapi,
            CharSet.Ansi);

         // Add PreserveSig to the method implementation flags. NOTE: If this line
         // is commented out, the return value will be zero when the method is
         // invoked.
         piMethodBuilder.SetImplementationFlags(
            piMethodBuilder.GetMethodImplementationFlags() | MethodImplAttributes.PreserveSig);

         // Create global methods.
         myModuleBuilder.CreateGlobalFunctions();

         // Arguments for calling the method.
         Object[] arguments = { 0, "Hello World", "Title", MB_RETRYCANCEL };

         MethodInfo pinvokeMethod = myModuleBuilder.GetMethod("MessageBoxA");
         Console.WriteLine("Testing module-level PInvoke method created with DefinePInvokeMethod...");
         Console.WriteLine("Message box returned: {0}",
            pinvokeMethod.Invoke(null, arguments));
      }
   }
}

/* This code example produces input similar to the following:

Testing module-level PInvoke method created with DefinePInvokeMethod...
Message box returned: 4
 */

Imports System.Reflection
Imports System.Reflection.Emit
Imports System.Runtime.InteropServices

Namespace PInvoke

   Public Class Example
   
      Const MB_RETRYCANCEL As Integer = 5

      Shared Sub Main()
      
         Dim myAssemblyName As New AssemblyName("TempAssembly")

         ' Define a dynamic assembly in the current application domain.
         Dim myAssemblyBuilder As AssemblyBuilder = _
            AppDomain.CurrentDomain.DefineDynamicAssembly( _
                        myAssemblyName, AssemblyBuilderAccess.Run)

         ' Define a dynamic module in "TempAssembly" assembly.
         Dim myModuleBuilder As ModuleBuilder = _
            myAssemblyBuilder.DefineDynamicModule("TempModule")

         Dim paramTypes() As Type = _
            { GetType(Integer), GetType(string), GetType(string), GetType(Integer) }

         ' Define a PInvoke method.
         Dim piMethodBuilder As MethodBuilder = myModuleBuilder.DefinePInvokeMethod( _
            "MessageBoxA", _
            "user32.dll", _
            MethodAttributes.Public Or MethodAttributes.Static Or MethodAttributes.PinvokeImpl, _
            CallingConventions.Standard, _
            GetType(Integer), _
            paramTypes, _
            CallingConvention.Winapi, _
            CharSet.Ansi)
         
         ' Add PreserveSig to the method implementation flags. NOTE: If this line
         ' is commented out, the return value will be zero when the method is
         ' invoked.
         piMethodBuilder.SetImplementationFlags( _
            piMethodBuilder.GetMethodImplementationFlags() Or MethodImplAttributes.PreserveSig)

         ' Create global methods.
         myModuleBuilder.CreateGlobalFunctions()

         ' Arguments for calling the method.
         Dim arguments() As Object= { 0, "Hello World", "Title", MB_RETRYCANCEL }

         Dim pinvokeMethod As MethodInfo = _
            myModuleBuilder.GetMethod("MessageBoxA")
         Console.WriteLine("Testing module-level PInvoke method created with DefinePInvokeMethod...")
         Console.WriteLine("Message box returned: {0}", _
            pinvokeMethod.Invoke(Nothing, arguments))

      End Sub
   End Class
End Namespace

' This code example produces input similar to the following:
'
'Testing module-level PInvoke method created with DefinePInvokeMethod...
'Message box returned: 4

備註

某些 DLL 匯入屬性 (請參閱 System.Runtime.InteropServices.DllImportAttribute) 的描述無法指定為此方法的自變數。 應該藉由發出方法的自定義屬性來設定這類屬性。 例如，DLL 匯入屬性 PreserveSig 是藉由發出自定義屬性來設定。

注意

從 .NET Framework 2.0 Service Pack 1 開始，此成員不再需要 ReflectionPermission 旗ReflectionPermissionFlag.ReflectionEmit標。 (請參閱反映發出中的安全性問題.) 若要使用此功能，您的應用程式應以 .NET Framework 3.5 或更新版本為目標。

適用於

DefinePInvokeMethod(String, String, String, MethodAttributes, CallingConventions, Type, Type[], CallingConvention, CharSet)

來源:
ModuleBuilder.cs
來源:
ModuleBuilder.cs
來源:
ModuleBuilder.cs

使用指定的名稱、定義方法的 DLL 名稱、方法的屬性、方法的呼叫慣例、方法的傳回型別、方法的參數型別和 PInvoke 旗標，來定義 PInvoke 方法。

public:
 System::Reflection::Emit::MethodBuilder ^ DefinePInvokeMethod(System::String ^ name, System::String ^ dllName, System::String ^ entryName, System::Reflection::MethodAttributes attributes, System::Reflection::CallingConventions callingConvention, Type ^ returnType, cli::array <Type ^> ^ parameterTypes, System::Runtime::InteropServices::CallingConvention nativeCallConv, System::Runtime::InteropServices::CharSet nativeCharSet);
public System.Reflection.Emit.MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, System.Reflection.MethodAttributes attributes, System.Reflection.CallingConventions callingConvention, Type? returnType, Type[]? parameterTypes, System.Runtime.InteropServices.CallingConvention nativeCallConv, System.Runtime.InteropServices.CharSet nativeCharSet);
public System.Reflection.Emit.MethodBuilder DefinePInvokeMethod (string name, string dllName, string entryName, System.Reflection.MethodAttributes attributes, System.Reflection.CallingConventions callingConvention, Type returnType, Type[] parameterTypes, System.Runtime.InteropServices.CallingConvention nativeCallConv, System.Runtime.InteropServices.CharSet nativeCharSet);
member this.DefinePInvokeMethod : string * string * string * System.Reflection.MethodAttributes * System.Reflection.CallingConventions * Type * Type[] * System.Runtime.InteropServices.CallingConvention * System.Runtime.InteropServices.CharSet -> System.Reflection.Emit.MethodBuilder
Public Function DefinePInvokeMethod (name As String, dllName As String, entryName As String, attributes As MethodAttributes, callingConvention As CallingConventions, returnType As Type, parameterTypes As Type(), nativeCallConv As CallingConvention, nativeCharSet As CharSet) As MethodBuilder

參數

name
String

PInvoke 方法的名稱。 name 不能包含內嵌的 null。

dllName
String

PInvoke 方法定義所在的 DLL 名稱。

entryName
String

DLL 中的進入點名稱。

attributes
MethodAttributes

方法的屬性。

callingConvention
CallingConventions

方法的呼叫慣例。

returnType
Type

方法的傳回類型。

parameterTypes
Type[]

方法參數的類型。

nativeCallConv
CallingConvention

原生呼叫慣例。

nativeCharSet
CharSet

方法的原生字元集。

傳回

MethodBuilder

已定義的 PInvoke 方法。

例外狀況

ArgumentException

方法不是靜態的，或者如果包含型別是介面、方法是抽象的或方法是先前定義的。

ArgumentNullException

name 或 dllName 為 null。

InvalidOperationException

包含型別先前已使用 CreateType() 來建立。

範例

下列範例說明如何使用 DefinePInvokeMethod 方法來為 Windows API 中的外部 Unmanaged 方法MessageBoxA建立 MethodBuilder 。 此範例會顯示含有 [重試 ] 和 [ 取消] 按鈕的消息框，並顯示消息框中的傳回值。

重要

若要取得非零的傳回值，您必須在使用 MethodBuilder.GetMethodImplementationFlags 和 MethodBuilder.SetImplementationFlags 方法建立 MethodBuilder之後加入MethodImplAttributes.PreserveSig方法實作旗標。

此範例會使用不同的 方法多 DefinePInvokeMethod 載，但技術相同。

using namespace System;
using namespace System::Reflection;
using namespace System::Reflection::Emit;
using namespace System::Runtime::InteropServices;

const int MB_RETRYCANCEL = 5;

void main()
{
   AssemblyName^ myAssemblyName = gcnew AssemblyName("TempAssembly");

   // Define a dynamic assembly in the current application domain.
   AssemblyBuilder^ myAssemblyBuilder = 
      AppDomain::CurrentDomain->DefineDynamicAssembly(
                  myAssemblyName, AssemblyBuilderAccess::Run);

   // Define a dynamic module in "TempAssembly" assembly.
   ModuleBuilder^ myModuleBuilder = 
      myAssemblyBuilder->DefineDynamicModule("TempModule");

   array<Type^>^ paramTypes = 
      { int::typeid, String::typeid, String::typeid, int::typeid };

   // Define a PInvoke method.
   MethodBuilder^ piMethodBuilder = myModuleBuilder->DefinePInvokeMethod(
      "MessageBoxA",
      "user32.dll",
      MethodAttributes::Public | MethodAttributes::Static | MethodAttributes::PinvokeImpl,
      CallingConventions::Standard,
      int::typeid,
      paramTypes,
      CallingConvention::Winapi,
      CharSet::Ansi);

   // Add PreserveSig to the method implementation flags. NOTE: If this line
   // is commented out, the return value will be zero when the method is
   // invoked.
   piMethodBuilder->SetImplementationFlags(
      piMethodBuilder->GetMethodImplementationFlags() | MethodImplAttributes::PreserveSig);

   // Create global methods.
   myModuleBuilder->CreateGlobalFunctions();

   // Arguments for calling the method.
   array<Object^>^ arguments = 
      { (Object^)(int) 0, "Hello World", "Title", MB_RETRYCANCEL };

   MethodInfo^ pinvokeMethod = myModuleBuilder->GetMethod("MessageBoxA");
   Console::WriteLine("Testing module-level PInvoke method created with DefinePInvokeMethod...");
   Console::WriteLine("Message box returned: {0}", 
      pinvokeMethod->Invoke(nullptr, arguments));
};


/* This code example produces input similar to the following:

Testing module-level PInvoke method created with DefinePInvokeMethod...
Message box returned: 4
 */

using System;
using System.Reflection;
using System.Reflection.Emit;
using System.Runtime.InteropServices;

namespace PInvoke
{
   public class Example
   {
      const int MB_RETRYCANCEL = 5;

      static void Main()
      {
         AssemblyName myAssemblyName = new AssemblyName("TempAssembly");

         // Define a dynamic assembly in the current application domain.
         AssemblyBuilder myAssemblyBuilder =
            AppDomain.CurrentDomain.DefineDynamicAssembly(
                        myAssemblyName, AssemblyBuilderAccess.Run);

         // Define a dynamic module in "TempAssembly" assembly.
         ModuleBuilder myModuleBuilder =
            myAssemblyBuilder.DefineDynamicModule("TempModule");

         Type[] paramTypes = { typeof(int), typeof(string), typeof(string), typeof(int) };

         // Define a PInvoke method.
         MethodBuilder piMethodBuilder = myModuleBuilder.DefinePInvokeMethod(
            "MessageBoxA",
            "user32.dll",
            MethodAttributes.Public | MethodAttributes.Static | MethodAttributes.PinvokeImpl,
            CallingConventions.Standard,
            typeof(int),
            paramTypes,
            CallingConvention.Winapi,
            CharSet.Ansi);

         // Add PreserveSig to the method implementation flags. NOTE: If this line
         // is commented out, the return value will be zero when the method is
         // invoked.
         piMethodBuilder.SetImplementationFlags(
            piMethodBuilder.GetMethodImplementationFlags() | MethodImplAttributes.PreserveSig);

         // Create global methods.
         myModuleBuilder.CreateGlobalFunctions();

         // Arguments for calling the method.
         Object[] arguments = { 0, "Hello World", "Title", MB_RETRYCANCEL };

         MethodInfo pinvokeMethod = myModuleBuilder.GetMethod("MessageBoxA");
         Console.WriteLine("Testing module-level PInvoke method created with DefinePInvokeMethod...");
         Console.WriteLine("Message box returned: {0}",
            pinvokeMethod.Invoke(null, arguments));
      }
   }
}

/* This code example produces input similar to the following:

Testing module-level PInvoke method created with DefinePInvokeMethod...
Message box returned: 4
 */

Imports System.Reflection
Imports System.Reflection.Emit
Imports System.Runtime.InteropServices

Namespace PInvoke

   Public Class Example
   
      Const MB_RETRYCANCEL As Integer = 5

      Shared Sub Main()
      
         Dim myAssemblyName As New AssemblyName("TempAssembly")

         ' Define a dynamic assembly in the current application domain.
         Dim myAssemblyBuilder As AssemblyBuilder = _
            AppDomain.CurrentDomain.DefineDynamicAssembly( _
                        myAssemblyName, AssemblyBuilderAccess.Run)

         ' Define a dynamic module in "TempAssembly" assembly.
         Dim myModuleBuilder As ModuleBuilder = _
            myAssemblyBuilder.DefineDynamicModule("TempModule")

         Dim paramTypes() As Type = _
            { GetType(Integer), GetType(string), GetType(string), GetType(Integer) }

         ' Define a PInvoke method.
         Dim piMethodBuilder As MethodBuilder = myModuleBuilder.DefinePInvokeMethod( _
            "MessageBoxA", _
            "user32.dll", _
            MethodAttributes.Public Or MethodAttributes.Static Or MethodAttributes.PinvokeImpl, _
            CallingConventions.Standard, _
            GetType(Integer), _
            paramTypes, _
            CallingConvention.Winapi, _
            CharSet.Ansi)
         
         ' Add PreserveSig to the method implementation flags. NOTE: If this line
         ' is commented out, the return value will be zero when the method is
         ' invoked.
         piMethodBuilder.SetImplementationFlags( _
            piMethodBuilder.GetMethodImplementationFlags() Or MethodImplAttributes.PreserveSig)

         ' Create global methods.
         myModuleBuilder.CreateGlobalFunctions()

         ' Arguments for calling the method.
         Dim arguments() As Object= { 0, "Hello World", "Title", MB_RETRYCANCEL }

         Dim pinvokeMethod As MethodInfo = _
            myModuleBuilder.GetMethod("MessageBoxA")
         Console.WriteLine("Testing module-level PInvoke method created with DefinePInvokeMethod...")
         Console.WriteLine("Message box returned: {0}", _
            pinvokeMethod.Invoke(Nothing, arguments))

      End Sub
   End Class
End Namespace

' This code example produces input similar to the following:
'
'Testing module-level PInvoke method created with DefinePInvokeMethod...
'Message box returned: 4

備註

某些 DLL 匯入屬性 (看到無法將) 的描述指定為這個方法的 DllImportAttribute 自變數。 應該藉由發出方法的自定義屬性來設定這類屬性。 例如，DLL 匯入屬性 PreserveSig 是藉由發出自定義屬性來設定。

注意

從 .NET Framework 2.0 Service Pack 1 開始，此成員不再需要 ReflectionPermission 旗ReflectionPermissionFlag.ReflectionEmit標。 (請參閱反映發出中的安全性問題.) 若要使用此功能，您的應用程式應以 .NET Framework 3.5 或更新版本為目標。

適用於