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Mac OS 8 Menu Manager Reference

Modifier Key Mask Constants

You can use one or more of the following mask constants in the modifier keys field of the 'xmnu' resource 'xmnu' to determine which modifier key(s) must be pressed along with a character key to create a keyboard equivalent for selecting a menu item. These constants are also passed in and obtained by SetMenuItemModifiers and GetMenuItemModifiers , respectively. Modifier key mask constants are available with Appearance Manager 1.0 and later.

enum {
    kMenuNoModifiers        = 0,
    kMenuShiftModifier      = (1 << 0),
    kMenuOptionModifier     = (1 << 1),
    kMenuControlModifier    = (1 << 2),
    kMenuNoCommandModifier  = (1 << 3)
};

Constant descriptions

kMenuNoModifiers
If no bit is set, only the Command key is used in the keyboard equivalent.
kMenuShiftModifier
If this bit (bit 0) is set, the Shift key is used in the keyboard equivalent.
kMenuOptionModifier
If this bit (bit 1) is set, the Option key is used in the keyboard equivalent.
kMenuControlModifier
If this bit (bit 2) is set, the Control key is used in the keyboard equivalent.
kMenuNoCommandModifier
If this bit (bit 3) is set, the Command key is not used in the keyboard equivalent.
© 1998 Apple Computer, Inc. - (Last Updated 19 Nov 98)