Marshal.GetFunctionPointerForDelegate Method (Delegate)
Note: This API is now obsolete.
Converts a delegate into a function pointer that is callable from unmanaged code.
Assemblies: System.Runtime.InteropServices (in System.Runtime.InteropServices.dll)
mscorlib (in mscorlib.dll)
[ObsoleteAttribute("GetFunctionPointerForDelegate(Delegate) may be unavailable in future releases. Instead, use GetFunctionPointerForDelegate<T>(T). For more info, go to http://go.microsoft.com/fwlink/?LinkID=296522")] public static IntPtr GetFunctionPointerForDelegate( Delegate d )
- Type: System.Delegate
The delegate to be passed to unmanaged code.
Return ValueType: System.IntPtr
A value that can be passed to unmanaged code, which, in turn, can use it to call the underlying managed delegate.
The delegate d is converted to a function pointer that can be passed to unmanaged code using the __stdcall calling convention.
You must manually keep the delegate from being collected by the garbage collector from managed code. The garbage collector does not track references to unmanaged code.
.NET FrameworkSupported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0
Obsolete (compiler warning) in 4.6
.NET Framework Client ProfileSupported in: 4, 3.5 SP1
.NET for Windows Phone appsSupported in: Windows Phone 8.1, Windows Phone Silverlight 8.1, Windows Phone Silverlight 8
Portable Class LibrarySupported in: Portable Class Library
requires full trust for the immediate caller. This member cannot be used by partially trusted or transparent code.