Checks the object for changes since it was last saved.
Syntax
Returns
An S_OK HRESULT value if the object has changed; otherwise, an S_FALSE HRESULT value.
Remarks
Requirements
Namespace: System.Runtime.InteropServices
Assembly: mscorlib (in mscorlib.dll)
Assembly Versions: 1.0.5000.0, 2.0.0.0, 4.0.0.0