ICustomQueryInterface.GetInterface Method

Returns an interface according to a specified interface ID.

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

CustomQueryInterfaceResult GetInterface(
	ref Guid iid,
	out IntPtr ppv


Type: System.Guid

The GUID of the requested interface.

Type: System.IntPtr

A reference to the requested interface, when this method returns.

Return Value

Type: System.Runtime.InteropServices.CustomQueryInterfaceResult
One of the enumeration values that indicates whether a custom implementation of IUnknown::QueryInterface was used.

An application can use managed code to specify its own implementation for custom interfaces and standard runtime interfaces.

The CustomQueryInterfaceResult return value can be used to enable or disable customized implementations by showing or hiding specific interfaces during COM access.

This method is invisible to COM.

.NET Framework

Supported in: 4.6, 4.5, 4

.NET Framework Client Profile

Supported in: 4

Portable Class Library

Supported in: Portable Class Library

Supported in: Windows Phone 8.1

Supported in: Windows Phone Silverlight 8.1

Supported in: Windows Phone Silverlight 8

  • SecurityCriticalAttribute 

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

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