Sets the selection to the characters in a single range.
Original signature is '- (void)setSelectedRange:(NSRange)charRange'
Available in Mac OS X v10.0 and later.


- charRange (NSRange)
- The range of characters to select. This range must begin and end on glyph boundaries and not split base glyphs and their nonspacing marks.

- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)