MethodBuilder.SetMarshal(UnmanagedMarshal) 方法
重要
部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。
警告
An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202
設定這個方法之傳回類型的封送處理資訊。
public:
void SetMarshal(System::Reflection::Emit::UnmanagedMarshal ^ unmanagedMarshal);public void SetMarshal (System.Reflection.Emit.UnmanagedMarshal unmanagedMarshal);[System.Obsolete("An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202")]
public void SetMarshal (System.Reflection.Emit.UnmanagedMarshal unmanagedMarshal);member this.SetMarshal : System.Reflection.Emit.UnmanagedMarshal -> unit[<System.Obsolete("An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202")>]
member this.SetMarshal : System.Reflection.Emit.UnmanagedMarshal -> unitPublic Sub SetMarshal (unmanagedMarshal As UnmanagedMarshal)- unmanagedMarshal
- UnmanagedMarshal
這個方法之傳回類型的封送處理資訊。
- 屬性
先前已使用 CreateType() 建立包含類型。
-或-
針對於目前的方法，IsGenericMethod 屬性為 true，但 IsGenericMethodDefinition 屬性為 false。
下列程式代碼範例說明方法的內容使用 SetMarshal 方式，將方法呼叫的結果封送處理為不同類型。
array<Type^>^ temp0 = { String::typeid };
MethodBuilder^ myMethod = myDynamicType->DefineMethod( "MyMethodReturnsMarshal",
MethodAttributes::Public,
UInt32::typeid,
temp0 );
// We want the return value of our dynamic method to be marshalled as
// an 64-bit (8-Byte) signed integer, instead of the default 32-bit
// unsigned int as specified above. The UnmanagedMarshal class can perform
// the type conversion.
UnmanagedMarshal^ marshalMeAsI8 = UnmanagedMarshal::DefineUnmanagedMarshal(
System::Runtime::InteropServices::UnmanagedType::I8 );
myMethod->SetMarshal( marshalMeAsI8 );
MethodBuilder myMethod = myDynamicType.DefineMethod("MyMethodReturnsMarshal",
MethodAttributes.Public,
typeof(uint),
new Type[] { typeof(string) });
// We want the return value of our dynamic method to be marshalled as
// an 64-bit (8-byte) signed integer, instead of the default 32-bit
// unsigned int as specified above. The UnmanagedMarshal class can perform
// the type conversion.
UnmanagedMarshal marshalMeAsI8 = UnmanagedMarshal.DefineUnmanagedMarshal(
System.Runtime.InteropServices.UnmanagedType.I8);
myMethod.SetMarshal(marshalMeAsI8);
Dim myMethod As MethodBuilder = myDynamicType.DefineMethod("MyMethodReturnsMarshal", _
MethodAttributes.Public, GetType(System.UInt32), _
New Type() {GetType(String)})
' We want the return value of our dynamic method to be marshalled as
' an 64-bit (8-byte) signed integer, instead of the default 32-bit
' unsigned int as specified above. The UnmanagedMarshal class can perform
' the type conversion.
Dim marshalMeAsI8 As UnmanagedMarshal = UnmanagedMarshal.DefineUnmanagedMarshal( _
System.Runtime.InteropServices.UnmanagedType.I8)
myMethod.SetMarshal(marshalMeAsI8)
| 產品 | 版本 (已淘汰) |
|---|---|
| .NET Framework | 1.1 (2.0, 3.0, 3.5, 4.0, 4.5, 4.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, 4.7.2, 4.8, 4.8.1) |
