Is SPCN present?

 

You can use the GetSPCNPresent API (use the uppercase and lowercase characters as shown) to find out if the system powered control network (SPCN) is present on the system.

There are no restrictions to the use of this command.

This API returns the following information:

Bytes 0 and 1	Bytes 2 and 3	Bytes 4 through 4+N
16-bit return code 0 = Command successful 1 = Command unsuccessful	16-bit additional data length N N = size of ASCII return value (does not count end of string NULL)	True or False

 

Parent topic:

APIs that check the system status