Gets the symbol character for a bulleted list. Takes a callback function with one parameter as a parameter. The callback function is called with the value as parameter upon receiving the information from the server.
A function with one parameter is called with the symbol character for a bulleted list.
The property's default value is the B7 (hexadecimal) character of the Windows Symbol character set. The property returns its default value when the text selection contains multiple paragraphs with different bullet characters.