TypeBuilder.DefinePInvokeMethod Metode

Referensi

Definisi

Ruang nama:: System.Reflection.Emit

Rakitan:: System.Reflection.Emit.dll

Rakitan:: mscorlib.dll

Rakitan:: netstandard.dll

Penting

Beberapa informasi terkait produk prarilis yang dapat diubah secara signifikan sebelum dirilis. Microsoft tidak memberikan jaminan, tersirat maupun tersurat, sehubungan dengan informasi yang diberikan di sini.

PInvoke Mendefinisikan metode.

Overload

DefinePInvokeMethod(String, String, MethodAttributes, CallingConventions, Type, Type[], CallingConvention, CharSet)	Mendefinisikan metode yang `PInvoke` diberi namanya, nama DLL tempat metode ditentukan, atribut metode, konvensi pemanggilan metode, jenis pengembalian metode, jenis parameter metode, dan `PInvoke` bendera.
DefinePInvokeMethod(String, String, String, MethodAttributes, CallingConventions, Type, Type[], CallingConvention, CharSet)	Mendefinisikan metode yang `PInvoke` diberi namanya, nama DLL tempat metode ditentukan, nama titik masuk, atribut metode, konvensi pemanggilan metode, jenis pengembalian metode, jenis parameter metode, dan `PInvoke` bendera.
DefinePInvokeMethod(String, String, String, MethodAttributes, CallingConventions, Type, Type[], Type[], Type[], Type[][], Type[][], CallingConvention, CharSet)	Mendefinisikan metode yang `PInvoke` diberi namanya, nama DLL tempat metode ditentukan, nama titik masuk, atribut metode, konvensi panggilan metode, jenis pengembalian metode, jenis parameter metode, bendera, `PInvoke` dan pengubah kustom untuk parameter dan jenis pengembalian.

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

Sumber:: TypeBuilder.cs

Sumber:: TypeBuilder.cs

Sumber:: TypeBuilder.cs

Mendefinisikan metode yang PInvoke diberi namanya, nama DLL tempat metode ditentukan, atribut metode, konvensi pemanggilan metode, jenis pengembalian metode, jenis parameter metode, dan PInvoke bendera.

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

Parameter

name: String

Nama PInvoke metode . name tidak boleh berisi null yang disematkan.

dllName: String

Nama DLL tempat PInvoke metode ditentukan.

attributes: MethodAttributes

Atribut metode .

callingConvention: CallingConventions

Konvensi panggilan metode.

returnType: Type

Jenis pengembalian metode.

parameterTypes: Type[]

Jenis parameter metode.

nativeCallConv: CallingConvention

Konvensi panggilan asli.

nativeCharSet: CharSet

Set karakter asli metode.

Mengembalikan

MethodBuilder

Metode yang ditentukan PInvoke .

Pengecualian

ArgumentException

Metode ini tidak statis.

-atau-

Jenis induk adalah antarmuka.

-atau-

Metode ini abstrak.

-atau-

Metode ini sebelumnya didefinisikan.

-atau-

Panjang name atau dllName adalah nol.

ArgumentNullException

name atau dllName adalah null.

InvalidOperationException

Jenis yang berisi telah dibuat sebelumnya menggunakan CreateType().

Contoh

Contoh berikut menunjukkan cara menggunakan DefinePInvokeMethod metode untuk membuat PInvoke metode, dan cara menambahkan MethodImplAttributes.PreserveSig bendera ke bendera implementasi metode setelah Anda membuat MethodBuilder, dengan menggunakan MethodBuilder.GetMethodImplementationFlags metode dan MethodBuilder.SetImplementationFlags .

Penting

Untuk mendapatkan nilai pengembalian bukan nol, Anda harus menambahkan MethodImplAttributes.PreserveSig bendera.

Contohnya membuat rakitan dinamis dengan satu modul dinamis dan satu jenis, MyType, yang berisi PInvoke metode . Metode ini PInvoke mewakili fungsi Win32 GetTickCount .

Ketika contoh dijalankan, ia menjalankan PInvoke metode . Ini juga menyimpan rakitan dinamis sebagai PInvokeTest.dll. Anda dapat menggunakan Ildasm.exe (IL Disassembler) untuk memeriksa MyType kelas dan static metode (Shared dalam Visual Basic) PInvoke yang dikandungnya. Anda dapat mengkompilasi program Visual Basic atau C# yang menggunakan metode statis MyType.GetTickCount dengan menyertakan referensi ke DLL saat Anda menjalankan csc.exe atau vbc.exe; misalnya, /r:PInvokeTest.dll.

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

    void main()
    {
        // Create the AssemblyBuilder.
        AssemblyName^ asmName = gcnew AssemblyName("PInvokeTest");
        AssemblyBuilder^ dynamicAsm = AppDomain::CurrentDomain->DefineDynamicAssembly(
            asmName, 
            AssemblyBuilderAccess::RunAndSave
        );

        // Create the module.
        ModuleBuilder^ dynamicMod = 
            dynamicAsm->DefineDynamicModule(asmName->Name, asmName->Name + ".dll");

        // Create the TypeBuilder for the class that will contain the 
        // signature for the PInvoke call.
        TypeBuilder^ tb = dynamicMod->DefineType(
            "MyType", 
            TypeAttributes::Public | TypeAttributes::UnicodeClass
        );
    
        MethodBuilder^ mb = tb->DefinePInvokeMethod(
            "GetTickCount",
            "Kernel32.dll",
            MethodAttributes::Public | MethodAttributes::Static | MethodAttributes::PinvokeImpl,
            CallingConventions::Standard,
            int::typeid,
            Type::EmptyTypes,
            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.
        mb->SetImplementationFlags(
            mb->GetMethodImplementationFlags() | MethodImplAttributes::PreserveSig);

        // The PInvoke method does not have a method body. 

        // Create the class and test the method.
        Type^ t = tb->CreateType();

        MethodInfo^ mi = t->GetMethod("GetTickCount");
        Console::WriteLine("Testing PInvoke method...");
        Console::WriteLine("GetTickCount returned: {0}", mi->Invoke(nullptr, nullptr));

        // Produce the .dll file.
        Console::WriteLine("Saving: " + asmName->Name + ".dll");
        dynamicAsm->Save(asmName->Name + ".dll");
    };

/* This example produces output similar to the following:

Testing PInvoke method...
GetTickCount returned: 1314410994
Saving: PInvokeTest.dll
 */

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

public class Example
{
    public static void Main()
    {
        // Create the AssemblyBuilder.
        AssemblyName asmName = new AssemblyName("PInvokeTest");
        AssemblyBuilder dynamicAsm = AppDomain.CurrentDomain.DefineDynamicAssembly(
            asmName,
            AssemblyBuilderAccess.RunAndSave
        );

        // Create the module.
        ModuleBuilder dynamicMod =
            dynamicAsm.DefineDynamicModule(asmName.Name, asmName.Name + ".dll");

        // Create the TypeBuilder for the class that will contain the
        // signature for the PInvoke call.
        TypeBuilder tb = dynamicMod.DefineType(
            "MyType",
            TypeAttributes.Public | TypeAttributes.UnicodeClass
        );

        MethodBuilder mb = tb.DefinePInvokeMethod(
            "GetTickCount",
            "Kernel32.dll",
            MethodAttributes.Public | MethodAttributes.Static | MethodAttributes.PinvokeImpl,
            CallingConventions.Standard,
            typeof(int),
            Type.EmptyTypes,
            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.
        mb.SetImplementationFlags(
            mb.GetMethodImplementationFlags() | MethodImplAttributes.PreserveSig);

        // The PInvoke method does not have a method body.

        // Create the class and test the method.
        Type t = tb.CreateType();

        MethodInfo mi = t.GetMethod("GetTickCount");
        Console.WriteLine("Testing PInvoke method...");
        Console.WriteLine("GetTickCount returned: {0}", mi.Invoke(null, null));

        // Produce the .dll file.
        Console.WriteLine("Saving: " + asmName.Name + ".dll");
        dynamicAsm.Save(asmName.Name + ".dll");
    }
}

/* This example produces output similar to the following:

Testing PInvoke method...
GetTickCount returned: 1312576235
Saving: PInvokeTest.dll
 */

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

Public Class Example
    
    Public Shared Sub Main() 
        
        ' Create the AssemblyBuilder.
        Dim asmName As New AssemblyName("PInvokeTest")
        Dim dynamicAsm As AssemblyBuilder = _
            AppDomain.CurrentDomain.DefineDynamicAssembly(asmName, _
                AssemblyBuilderAccess.RunAndSave)
        
        ' Create the module.
        Dim dynamicMod As ModuleBuilder = _
            dynamicAsm.DefineDynamicModule(asmName.Name, asmName.Name & ".dll")
        
        ' Create the TypeBuilder for the class that will contain the 
        ' signature for the PInvoke call.
        Dim tb As TypeBuilder = dynamicMod.DefineType("MyType", _
            TypeAttributes.Public Or TypeAttributes.UnicodeClass)
        
        Dim mb As MethodBuilder = tb.DefinePInvokeMethod( _
            "GetTickCount", _
            "Kernel32.dll", _
            MethodAttributes.Public Or MethodAttributes.Static Or MethodAttributes.PinvokeImpl, _
            CallingConventions.Standard, _
            GetType(Integer), _
            Type.EmptyTypes, _
            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.
        mb.SetImplementationFlags( _
            mb.GetMethodImplementationFlags() Or MethodImplAttributes.PreserveSig)
        
        ' The PInvoke method does not have a method body.
        
        ' Create the class and test the method.
        Dim t As Type = tb.CreateType()

        Dim mi As MethodInfo = t.GetMethod("GetTickCount")
        Console.WriteLine("Testing PInvoke method...")
        Console.WriteLine("GetTickCount returned: {0}", mi.Invoke(Nothing, Nothing))

        ' Produce the .dll file.
        Console.WriteLine("Saving: " & asmName.Name & ".dll")
        dynamicAsm.Save(asmName.Name & ".dll")
    
    End Sub  
End Class 

' This example produces output similar to the following:
'
'Testing PInvoke method...
'GetTickCount returned: 1313078714
'Saving: PInvokeTest.dll

Keterangan

Beberapa atribut impor DLL (lihat deskripsi DllImportAttribute) tidak dapat ditentukan sebagai argumen untuk metode ini. Misalnya, atribut MethodImplAttributes.PreserveSig impor DLL harus ditambahkan setelah PInvoke metode dibuat, jika metode mengembalikan nilai. Contoh menunjukkan cara melakukan ini.

Berlaku untuk

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

Sumber:: TypeBuilder.cs

Sumber:: TypeBuilder.cs

Sumber:: TypeBuilder.cs

Mendefinisikan metode yang PInvoke diberi namanya, nama DLL tempat metode ditentukan, nama titik masuk, atribut metode, konvensi pemanggilan metode, jenis pengembalian metode, jenis parameter metode, dan PInvoke bendera.

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

Parameter

name: String

Nama PInvoke metode . name tidak boleh berisi null yang disematkan.

dllName: String

Nama DLL tempat PInvoke metode ditentukan.

entryName: String

Nama titik entri di DLL.

attributes: MethodAttributes

Atribut metode .

callingConvention: CallingConventions

Konvensi panggilan metode.

returnType: Type

Jenis pengembalian metode.

parameterTypes: Type[]

Jenis parameter metode.

nativeCallConv: CallingConvention

Konvensi panggilan asli.

nativeCharSet: CharSet

Set karakter asli metode.

Mengembalikan

MethodBuilder

Metode yang ditentukan PInvoke .

Pengecualian

ArgumentException

Metode ini tidak statis.

-atau-

Jenis induk adalah antarmuka.

-atau-

Metode ini abstrak.

-atau-

Metode ini sebelumnya didefinisikan.

-atau-

Panjang name, dllName, atau entryName adalah nol.

ArgumentNullException

name, dllName, atau entryName adalah null.

InvalidOperationException

Jenis yang berisi telah dibuat sebelumnya menggunakan CreateType().

Contoh

Contoh kode berikut menunjukkan cara menggunakan DefinePInvokeMethod metode untuk membuat PInvoke metode, dan cara menambahkan MethodImplAttributes.PreserveSig bendera ke bendera implementasi metode setelah Anda membuat MethodBuilder, dengan menggunakan MethodBuilder.GetMethodImplementationFlags metode dan MethodBuilder.SetImplementationFlags .

Penting

Untuk mendapatkan nilai pengembalian bukan nol, Anda harus menambahkan MethodImplAttributes.PreserveSig bendera.

Contohnya membuat rakitan dinamis dengan satu modul dinamis dan satu jenis, MyType, yang berisi PInvoke metode . Metode ini PInvoke mewakili fungsi Win32 GetTickCount .

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

    void main()
    {
        // Create the AssemblyBuilder.
        AssemblyName^ asmName = gcnew AssemblyName("PInvokeTest");
        AssemblyBuilder^ dynamicAsm = AppDomain::CurrentDomain->DefineDynamicAssembly(
            asmName, 
            AssemblyBuilderAccess::RunAndSave
        );

        // Create the module.
        ModuleBuilder^ dynamicMod = 
            dynamicAsm->DefineDynamicModule(asmName->Name, asmName->Name + ".dll");

        // Create the TypeBuilder for the class that will contain the 
        // signature for the PInvoke call.
        TypeBuilder^ tb = dynamicMod->DefineType(
            "MyType", 
            TypeAttributes::Public | TypeAttributes::UnicodeClass
        );
    
        MethodBuilder^ mb = tb->DefinePInvokeMethod(
            "GetTickCount",
            "Kernel32.dll",
            MethodAttributes::Public | MethodAttributes::Static | MethodAttributes::PinvokeImpl,
            CallingConventions::Standard,
            int::typeid,
            Type::EmptyTypes,
            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.
        mb->SetImplementationFlags(
            mb->GetMethodImplementationFlags() | MethodImplAttributes::PreserveSig);

        // The PInvoke method does not have a method body. 

        // Create the class and test the method.
        Type^ t = tb->CreateType();

        MethodInfo^ mi = t->GetMethod("GetTickCount");
        Console::WriteLine("Testing PInvoke method...");
        Console::WriteLine("GetTickCount returned: {0}", mi->Invoke(nullptr, nullptr));

        // Produce the .dll file.
        Console::WriteLine("Saving: " + asmName->Name + ".dll");
        dynamicAsm->Save(asmName->Name + ".dll");
    };

/* This example produces output similar to the following:

Testing PInvoke method...
GetTickCount returned: 1314410994
Saving: PInvokeTest.dll
 */

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

public class Example
{
    public static void Main()
    {
        // Create the AssemblyBuilder.
        AssemblyName asmName = new AssemblyName("PInvokeTest");
        AssemblyBuilder dynamicAsm = AppDomain.CurrentDomain.DefineDynamicAssembly(
            asmName,
            AssemblyBuilderAccess.RunAndSave
        );

        // Create the module.
        ModuleBuilder dynamicMod =
            dynamicAsm.DefineDynamicModule(asmName.Name, asmName.Name + ".dll");

        // Create the TypeBuilder for the class that will contain the
        // signature for the PInvoke call.
        TypeBuilder tb = dynamicMod.DefineType(
            "MyType",
            TypeAttributes.Public | TypeAttributes.UnicodeClass
        );

        MethodBuilder mb = tb.DefinePInvokeMethod(
            "GetTickCount",
            "Kernel32.dll",
            MethodAttributes.Public | MethodAttributes.Static | MethodAttributes.PinvokeImpl,
            CallingConventions.Standard,
            typeof(int),
            Type.EmptyTypes,
            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.
        mb.SetImplementationFlags(
            mb.GetMethodImplementationFlags() | MethodImplAttributes.PreserveSig);

        // The PInvoke method does not have a method body.

        // Create the class and test the method.
        Type t = tb.CreateType();

        MethodInfo mi = t.GetMethod("GetTickCount");
        Console.WriteLine("Testing PInvoke method...");
        Console.WriteLine("GetTickCount returned: {0}", mi.Invoke(null, null));

        // Produce the .dll file.
        Console.WriteLine("Saving: " + asmName.Name + ".dll");
        dynamicAsm.Save(asmName.Name + ".dll");
    }
}

/* This example produces output similar to the following:

Testing PInvoke method...
GetTickCount returned: 1312576235
Saving: PInvokeTest.dll
 */

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

Public Class Example
    
    Public Shared Sub Main() 
        
        ' Create the AssemblyBuilder.
        Dim asmName As New AssemblyName("PInvokeTest")
        Dim dynamicAsm As AssemblyBuilder = _
            AppDomain.CurrentDomain.DefineDynamicAssembly(asmName, _
                AssemblyBuilderAccess.RunAndSave)
        
        ' Create the module.
        Dim dynamicMod As ModuleBuilder = _
            dynamicAsm.DefineDynamicModule(asmName.Name, asmName.Name & ".dll")
        
        ' Create the TypeBuilder for the class that will contain the 
        ' signature for the PInvoke call.
        Dim tb As TypeBuilder = dynamicMod.DefineType("MyType", _
            TypeAttributes.Public Or TypeAttributes.UnicodeClass)
        
        Dim mb As MethodBuilder = tb.DefinePInvokeMethod( _
            "GetTickCount", _
            "Kernel32.dll", _
            MethodAttributes.Public Or MethodAttributes.Static Or MethodAttributes.PinvokeImpl, _
            CallingConventions.Standard, _
            GetType(Integer), _
            Type.EmptyTypes, _
            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.
        mb.SetImplementationFlags( _
            mb.GetMethodImplementationFlags() Or MethodImplAttributes.PreserveSig)
        
        ' The PInvoke method does not have a method body.
        
        ' Create the class and test the method.
        Dim t As Type = tb.CreateType()

        Dim mi As MethodInfo = t.GetMethod("GetTickCount")
        Console.WriteLine("Testing PInvoke method...")
        Console.WriteLine("GetTickCount returned: {0}", mi.Invoke(Nothing, Nothing))

        ' Produce the .dll file.
        Console.WriteLine("Saving: " & asmName.Name & ".dll")
        dynamicAsm.Save(asmName.Name & ".dll")
    
    End Sub  
End Class 

' This example produces output similar to the following:
'
'Testing PInvoke method...
'GetTickCount returned: 1313078714
'Saving: PInvokeTest.dll

Keterangan

Berlaku untuk

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

Sumber:: TypeBuilder.cs

Sumber:: TypeBuilder.cs

Sumber:: TypeBuilder.cs

Mendefinisikan metode yang PInvoke diberi namanya, nama DLL tempat metode ditentukan, nama titik masuk, atribut metode, konvensi panggilan metode, jenis pengembalian metode, jenis parameter metode, bendera, PInvoke dan pengubah kustom untuk parameter dan jenis pengembalian.

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 ^> ^ returnTypeRequiredCustomModifiers, cli::array <Type ^> ^ returnTypeOptionalCustomModifiers, cli::array <Type ^> ^ parameterTypes, cli::array <cli::array <Type ^> ^> ^ parameterTypeRequiredCustomModifiers, cli::array <cli::array <Type ^> ^> ^ parameterTypeOptionalCustomModifiers, 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[]? returnTypeRequiredCustomModifiers, Type[]? returnTypeOptionalCustomModifiers, Type[]? parameterTypes, Type[][]? parameterTypeRequiredCustomModifiers, Type[][]? parameterTypeOptionalCustomModifiers, 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[] returnTypeRequiredCustomModifiers, Type[] returnTypeOptionalCustomModifiers, Type[] parameterTypes, Type[][] parameterTypeRequiredCustomModifiers, Type[][] parameterTypeOptionalCustomModifiers, System.Runtime.InteropServices.CallingConvention nativeCallConv, System.Runtime.InteropServices.CharSet nativeCharSet);

member this.DefinePInvokeMethod : string * string * string * System.Reflection.MethodAttributes * System.Reflection.CallingConventions * Type * Type[] * Type[] * Type[] * 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, returnTypeRequiredCustomModifiers As Type(), returnTypeOptionalCustomModifiers As Type(), parameterTypes As Type(), parameterTypeRequiredCustomModifiers As Type()(), parameterTypeOptionalCustomModifiers As Type()(), nativeCallConv As CallingConvention, nativeCharSet As CharSet) As MethodBuilder

Parameter

name: String

Nama PInvoke metode . name tidak boleh berisi null yang disematkan.

dllName: String

Nama DLL tempat PInvoke metode ditentukan.

entryName: String

Nama titik entri di DLL.

attributes: MethodAttributes

Atribut metode .

callingConvention: CallingConventions

Konvensi panggilan metode.

returnType: Type

Jenis pengembalian metode.

returnTypeRequiredCustomModifiers: Type[]

Array jenis yang mewakili pengubah kustom yang diperlukan, seperti IsConst, untuk jenis pengembalian metode. Jika jenis pengembalian tidak memiliki pengubah kustom yang diperlukan, tentukan null.

returnTypeOptionalCustomModifiers: Type[]

Array jenis yang mewakili pengubah kustom opsional, seperti IsConst, untuk jenis pengembalian metode. Jika jenis pengembalian tidak memiliki pengubah kustom opsional, tentukan null.

parameterTypes: Type[]

Jenis parameter metode.

parameterTypeRequiredCustomModifiers: Type[][]

Array jenis array. Setiap array jenis mewakili pengubah kustom yang diperlukan untuk parameter yang sesuai, seperti IsConst. Jika parameter tertentu tidak memiliki pengubah kustom yang diperlukan, tentukan null alih-alih array jenis. Jika tidak ada parameter yang memerlukan pengubah kustom, tentukan null alih-alih array array.

parameterTypeOptionalCustomModifiers: Type[][]

Array jenis array. Setiap array jenis mewakili pengubah kustom opsional untuk parameter yang sesuai, seperti IsConst. Jika parameter tertentu tidak memiliki pengubah kustom opsional, tentukan null alih-alih array jenis. Jika tidak ada parameter yang memiliki pengubah kustom opsional, tentukan null alih-alih array array.

nativeCallConv: CallingConvention

Konvensi panggilan asli.

nativeCharSet: CharSet

Set karakter asli metode.

Mengembalikan

MethodBuilder

MethodBuilder mewakili metode yang ditentukanPInvoke.

Pengecualian

ArgumentException

Metode ini tidak statis.

-atau-

Jenis induk adalah antarmuka.

-atau-

Metode ini abstrak.

-atau-

Metode ini sebelumnya didefinisikan.

-atau-

Panjang name, dllName, atau entryName adalah nol.

-atau-

Ukuran parameterTypeRequiredCustomModifiers atau parameterTypeOptionalCustomModifiers tidak sama dengan ukuran parameterTypes.

ArgumentNullException

name, dllName, atau entryName adalah null.

InvalidOperationException

Jenis sebelumnya dibuat menggunakan CreateType().

-atau-

Untuk jenis dinamis saat ini, IsGenericType properti adalah true, tetapi IsGenericTypeDefinition propertinya adalah false.

Contoh

Contohnya membuat rakitan dinamis dengan satu modul dinamis dan satu jenis, MyType, yang berisi PInvoke metode . Metode ini PInvoke mewakili fungsi Win32 GetTickCount .

Penting

Untuk mendapatkan nilai pengembalian bukan nol, Anda harus menambahkan MethodImplAttributes.PreserveSig bendera.

Catatan

Contoh menggunakan kelebihan beban yang tidak menentukan pengubah kustom. Untuk menentukan pengubah kustom, ubah kode contoh untuk menggunakan metode ini sebagai gantinya.

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

    void main()
    {
        // Create the AssemblyBuilder.
        AssemblyName^ asmName = gcnew AssemblyName("PInvokeTest");
        AssemblyBuilder^ dynamicAsm = AppDomain::CurrentDomain->DefineDynamicAssembly(
            asmName, 
            AssemblyBuilderAccess::RunAndSave
        );

        // Create the module.
        ModuleBuilder^ dynamicMod = 
            dynamicAsm->DefineDynamicModule(asmName->Name, asmName->Name + ".dll");

        // Create the TypeBuilder for the class that will contain the 
        // signature for the PInvoke call.
        TypeBuilder^ tb = dynamicMod->DefineType(
            "MyType", 
            TypeAttributes::Public | TypeAttributes::UnicodeClass
        );
    
        MethodBuilder^ mb = tb->DefinePInvokeMethod(
            "GetTickCount",
            "Kernel32.dll",
            MethodAttributes::Public | MethodAttributes::Static | MethodAttributes::PinvokeImpl,
            CallingConventions::Standard,
            int::typeid,
            Type::EmptyTypes,
            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.
        mb->SetImplementationFlags(
            mb->GetMethodImplementationFlags() | MethodImplAttributes::PreserveSig);

        // The PInvoke method does not have a method body. 

        // Create the class and test the method.
        Type^ t = tb->CreateType();

        MethodInfo^ mi = t->GetMethod("GetTickCount");
        Console::WriteLine("Testing PInvoke method...");
        Console::WriteLine("GetTickCount returned: {0}", mi->Invoke(nullptr, nullptr));

        // Produce the .dll file.
        Console::WriteLine("Saving: " + asmName->Name + ".dll");
        dynamicAsm->Save(asmName->Name + ".dll");
    };

/* This example produces output similar to the following:

Testing PInvoke method...
GetTickCount returned: 1314410994
Saving: PInvokeTest.dll
 */

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

public class Example
{
    public static void Main()
    {
        // Create the AssemblyBuilder.
        AssemblyName asmName = new AssemblyName("PInvokeTest");
        AssemblyBuilder dynamicAsm = AppDomain.CurrentDomain.DefineDynamicAssembly(
            asmName,
            AssemblyBuilderAccess.RunAndSave
        );

        // Create the module.
        ModuleBuilder dynamicMod =
            dynamicAsm.DefineDynamicModule(asmName.Name, asmName.Name + ".dll");

        // Create the TypeBuilder for the class that will contain the
        // signature for the PInvoke call.
        TypeBuilder tb = dynamicMod.DefineType(
            "MyType",
            TypeAttributes.Public | TypeAttributes.UnicodeClass
        );

        MethodBuilder mb = tb.DefinePInvokeMethod(
            "GetTickCount",
            "Kernel32.dll",
            MethodAttributes.Public | MethodAttributes.Static | MethodAttributes.PinvokeImpl,
            CallingConventions.Standard,
            typeof(int),
            Type.EmptyTypes,
            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.
        mb.SetImplementationFlags(
            mb.GetMethodImplementationFlags() | MethodImplAttributes.PreserveSig);

        // The PInvoke method does not have a method body.

        // Create the class and test the method.
        Type t = tb.CreateType();

        MethodInfo mi = t.GetMethod("GetTickCount");
        Console.WriteLine("Testing PInvoke method...");
        Console.WriteLine("GetTickCount returned: {0}", mi.Invoke(null, null));

        // Produce the .dll file.
        Console.WriteLine("Saving: " + asmName.Name + ".dll");
        dynamicAsm.Save(asmName.Name + ".dll");
    }
}

/* This example produces output similar to the following:

Testing PInvoke method...
GetTickCount returned: 1312576235
Saving: PInvokeTest.dll
 */

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

Public Class Example
    
    Public Shared Sub Main() 
        
        ' Create the AssemblyBuilder.
        Dim asmName As New AssemblyName("PInvokeTest")
        Dim dynamicAsm As AssemblyBuilder = _
            AppDomain.CurrentDomain.DefineDynamicAssembly(asmName, _
                AssemblyBuilderAccess.RunAndSave)
        
        ' Create the module.
        Dim dynamicMod As ModuleBuilder = _
            dynamicAsm.DefineDynamicModule(asmName.Name, asmName.Name & ".dll")
        
        ' Create the TypeBuilder for the class that will contain the 
        ' signature for the PInvoke call.
        Dim tb As TypeBuilder = dynamicMod.DefineType("MyType", _
            TypeAttributes.Public Or TypeAttributes.UnicodeClass)
        
        Dim mb As MethodBuilder = tb.DefinePInvokeMethod( _
            "GetTickCount", _
            "Kernel32.dll", _
            MethodAttributes.Public Or MethodAttributes.Static Or MethodAttributes.PinvokeImpl, _
            CallingConventions.Standard, _
            GetType(Integer), _
            Type.EmptyTypes, _
            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.
        mb.SetImplementationFlags( _
            mb.GetMethodImplementationFlags() Or MethodImplAttributes.PreserveSig)
        
        ' The PInvoke method does not have a method body.
        
        ' Create the class and test the method.
        Dim t As Type = tb.CreateType()

        Dim mi As MethodInfo = t.GetMethod("GetTickCount")
        Console.WriteLine("Testing PInvoke method...")
        Console.WriteLine("GetTickCount returned: {0}", mi.Invoke(Nothing, Nothing))

        ' Produce the .dll file.
        Console.WriteLine("Saving: " & asmName.Name & ".dll")
        dynamicAsm.Save(asmName.Name & ".dll")
    
    End Sub  
End Class 

' This example produces output similar to the following:
'
'Testing PInvoke method...
'GetTickCount returned: 1313078714
'Saving: PInvokeTest.dll

Keterangan

Catatan

Untuk informasi selengkapnya tentang pengubah kustom, lihat ECMA C# dan Standar Infrastruktur Bahasa Umum dan ECMA-335 Standar - Infrastruktur Bahasa Umum (CLI).

Berlaku untuk

Bagikan melalui

TypeBuilder.DefinePInvokeMethod Metode

Definisi

Overload

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

Parameter

Mengembalikan

Pengecualian

Contoh

Keterangan

Berlaku untuk

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

Parameter

Mengembalikan

Pengecualian

Contoh

Keterangan

Berlaku untuk

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

Parameter

Mengembalikan

Pengecualian

Contoh

Keterangan

Berlaku untuk

Sumber Daya Tambahan: