Updating the Cursor Image in a Window

You can change the cursor image when the cursor is within a specified area of a view in a window. To do this, use the NSTrackingArea class, along with the cursorUpdate: method of the NSResponder class. For specifics, read Using Tracking-Area Objects in Cocoa Event Handling Guide.

For details on the NSTrackingArea class itself, refer to NSTrackingArea Class Reference.