Implemented by subclasses to set a mark at the insertion point or selection, which is used by deleteToMark: and selectToMark:.
Original signature is '- (void)setMark:(id)sender'
Available in Mac OS X v10.0 and later.
- sender (Id)
- Typically the object that invoked this method.
Assembly: Monobjc.AppKit (Module: Monobjc.AppKit)
- Available in Monobjc Bridge: 10.6 (For Mac OS X 10.6 and later), 10.5 (For Mac OS X 10.5 and later)