kControlSupportsNewMessages

Header: Controls.h

enum {
    kControlSupportsNewMessages = ' ok '
};

Constant descriptions

kControlSupportsNewMessages: The control definition function supports new messages introduced with Mac OS 8 and the Appearance Manager.

If your control definition function supports Appearance-compliant messages, it should return kControlSupportsNewMessages as a function result when the Control Manager passes kControlMsgTestNewMsgSupport in the message parameter.