Microsoft.VisualStudio.Project.NestedProjectNode.IsItemDirty C# (CSharp) Method

        public override int IsItemDirty(uint itemId, IntPtr punkDocData, out int pfDirty)
        {
            Debug.Assert(this.nestedHierarchy != null, "The nested hierarchy object must be created before calling this method");
            Debug.Assert(punkDocData != IntPtr.Zero, "docData intptr was zero");

            // Get an IPersistFileFormat object from docData object
            IPersistFileFormat persistFileFormat = Marshal.GetTypedObjectForIUnknown(punkDocData, typeof(IPersistFileFormat)) as IPersistFileFormat;
            Debug.Assert(persistFileFormat != null, "The docData object does not implement the IPersistFileFormat interface");

            // Call IsDirty on the IPersistFileFormat interface
            ErrorHandler.ThrowOnFailure(persistFileFormat.IsDirty(out pfDirty));

            return VSConstants.S_OK;
        }