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Programming With the Mac OS 8.5 Control Manager


Control Definition Feature Constants

With the Mac OS 8.5 Control Manager, your control definition function may report the following new feature flags to reflect the features that your control supports. For other control definition feature flags, see "Defining Your Own Control Definition Function" in Mac OS 8 Control Manager Reference .

enum {
    kControlAutoToggles         = 1 << 14,
    kControlSupportsGetRegion   = 1 << 17
};

Constant descriptions

kControlAutoToggles
If the bit specified by this mask is set, the control definition function supports automatically changing among various states (on, off, mixed) in response to user actions.
kControlSupportsGetRegion
If the bit specified by this mask is set, the control definition function supports the kControlMsgGetRegion message, described in Control Definition Message Constants .

© 1999 Apple Computer, Inc. — (Last Updated 20 Jan 99)