arCP (PULONG) - output
The first ULONG is the current code page identifier of the calling process.
If one or two code pages have been prepared for the system, then the second ULONG is the first prepared code page, and the third ULONG is the second prepared code page.
If the data length is less than the number of bytes needed to return all of the prepared system code pages, then the returned list is truncated.
The code page identifiers have the values described in the following list:
437