IPersistFile Interface


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Provides the managed definition of the IPersistFile interface, with functionality from IPersist.

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

public interface IPersistFile


Retrieves the class identifier (CLSID) of an object.


Retrieves either the absolute path to the current working file of the object or, if there is no current working file, the default file name prompt of the object.


Checks an object for changes since it was last saved to its current file.

System_CAPS_pubmethodLoad(String, Int32)

Opens the specified file and initializes an object from the file contents.

System_CAPS_pubmethodSave(String, Boolean)

Saves a copy of the object into the specified file.


Notifies the object that it can write to its file.

For more information, see the existing documentation for IPersistFile and IPersist in the MSDN library.

The common language runtime throws an exception when a COM method in native code returns an HRESULT. For more information, see How to: Map HRESULTs and Exceptions.

Universal Windows Platform
Available since 8
.NET Framework
Available since 2.0
Portable Class Library
Supported in: portable .NET platforms
Windows Phone
Available since 8.1
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