TextDocument.UsedFileName
Usage:
Description:
Contains the full file name, which is used when user saves the text document.
This property is filled up in the following cases:
1. When you fill it up programmatically;
2. When the document is opened from a file interactively;
3. When you call the Show method and if it contains the file name;
4. When user executes the "Save as..." command.
Availability: