SetMarshal Method

MethodBuilder.SetMarshal Method

NOTE: This method is now obsolete.

Sets marshaling information for the return type of this method.

Namespace: System.Reflection.Emit
Assembly: mscorlib (in mscorlib.dll)

[ObsoleteAttribute("An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202")] 
public void SetMarshal (
	UnmanagedMarshal unmanagedMarshal
)
/** @attribute ObsoleteAttribute("An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202") */ 
public void SetMarshal (
	UnmanagedMarshal unmanagedMarshal
)
ObsoleteAttribute("An alternate API is available: Emit the MarshalAs custom attribute instead. http://go.microsoft.com/fwlink/?linkid=14202") 
public function SetMarshal (
	unmanagedMarshal : UnmanagedMarshal
)
Not applicable.

Parameters

unmanagedMarshal

Marshaling information for the return type of this method.

Exception typeCondition

InvalidOperationException

The containing type was previously created using CreateType.

-or-

For the current method, the IsGenericMethod property is true, but the IsGenericMethodDefinition property is false.

The code sample below illustrates the contextual usage of the SetMarshal method to marshal the results of a method call as a different type.


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);    


MethodBuilder myMethod = myDynamicType.DefineMethod(
    "MyMethodReturnsMarshal", MethodAttributes.Public, 
    int.class.ToType(), new Type[] { String.class.ToType() });

// 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);

Windows 98, Windows Server 2000 SP4, Windows Millennium Edition, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

The Microsoft .NET Framework 3.0 is supported on Windows Vista, Microsoft Windows XP SP2, and Windows Server 2003 SP1.

.NET Framework

Supported in: 1.0, 1.1, 2.0
Obsolete (compiler warning) in 3.0

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