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Important: The information in this document is obsolete and should not be used for new development.

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Inside Macintosh: Devices /
Chapter 6 - Power Manager / Power Manager Reference
Power Manager Dispatch Routines / Determining the Power Manager Features Available

PMSelectorCount

You can use the PMSelectorCount function to determine which Power Manager dispatch functions are implemented. 

short PMSelectorCount();
DESCRIPTION
The PMSelectorCount function returns the number of routine selectors present. Any function whose selector value is greater than the returned value is not implemented.

ASSEMBLY-LANGUAGE INFORMATION
The trap is _PowerMgrDispatch ($A09E). The selector value for PMSelectorCount is 0 ($00) in the low word of register D0. The number of selectors is returned in the low word of register D0.

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© Apple Computer, Inc.
3 JUL 1996