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Marshal.NumParamBytes Method

Calculates the number of bytes in unmanaged memory that are required to hold the parameters for the specified method.

Namespace:  System.Runtime.InteropServices
Assembly:  mscorlib (in mscorlib.dll)

public static int NumParamBytes(
	MethodInfo m
)

Parameters

m
Type: System.Reflection.MethodInfo

The method to be checked.

Return Value

Type: System.Int32
The number of bytes required to represent the method parameters in unmanaged memory.

ExceptionCondition
ArgumentNullException

The m parameter is null.

ArgumentException

The m parameter is not a MethodInfo object.

The NumParamBytes method returns the stack size (in bytes) needed to represent the parameters of a method signature in unmanaged memory.

Note that the return value of this method is platform-dependent. For example, a signature with a single integer parameter returns a value of 4 on 32-bit platforms and a value of 8 on 64-bit platforms.

.NET Framework

Supported in: 4.5.2, 4.5.1, 4.5, 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Portable Class Library

Supported in: Portable Class Library

  • SecurityCriticalAttribute 

    requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.

Windows 8.1, Windows Server 2012 R2, Windows 8, Windows Server 2012, Windows 7, Windows Vista SP2, Windows Server 2008 (Server Core Role not supported), Windows Server 2008 R2 (Server Core Role supported with SP1 or later; Itanium not supported)

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

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