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DllImportAttribute.CallingConvention Field

Indicates the calling convention of an entry point.

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

val mutable CallingConvention: CallingConvention

You set this field to one of the CallingConvention enumeration members. The default value for the CallingConvention field is Winapi, which in turn defaults to StdCall convention.

For more information, see Calling Convention in the MSDN library.

In some cases, Visual Basic developers use the DllImportAttribute, instead of the Declare statement, to define a DLL function in managed code. Setting the CallingConvention field is one of those cases.

System.Runtime.InteropServices.DllImportAttribute#1

.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

.NET for Windows Store apps

Supported in: Windows 8

.NET for Windows Phone apps

Supported in: Windows Phone 8.1, Windows Phone 8, Silverlight 8.1

Windows Phone 8.1, Windows Phone 8, 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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