Apple Logic Pro 7 - Manual (Page 681)

Chapter 22 Control Surface Support 681
• Rotate—The incoming value is added to the parameter’s current value, cycling
between maximum and minimum values. This is useful for button presses that cycle
between modes: automation mode, for example.
• X-OR—The value defines a bit mask which is applied to the parameter’s current value
with the “exclusive or” Boolean operation. Useful for enabling/disabling single Object
types in Global View.
Feedback
Defines the way the parameter’s current value is displayed on the control surface. You
can choose between the following options:
• None—No feedback is sent.
• Single Dot/Line—LED rings: only one LED; LCDs: a single vertical line.
• Left to Right Bar—A bar from the minimum to the current value.
• Right to Left Bar—A bar from the current value to the maximum.
• Q/Spread—A bar from the center to the current value.
• Ascending Bar LCDs—A bar from the bottom to the current value.
• Descending Bar LCDs—A bar from the top to the current value.
• Text Only—LED rings: no feedback; LCDs: no feedback as a graphic element.
• Automatic—Dependent on the currently assigned parameter, the most suitable
feedback mode is used: Plug-in and Instrument parameters carry this information,
Pan uses Single Dot/Line, all other parameters use Left to Right Bar.
Note: Feedback only works for supported control surfaces, and not all settings are
available for all controls.
Text Feedback Checkbox
If enabled, a textual representation of the current value is sent to the control surface’s
display. The plug-in determines the display position and number of characters that are
used.
Local Feedback (Fader/Knob) Checkbox
If enabled, no feedback is sent while the parameter is in Touched mode, in order to
prevent motor faders fighting against the user.