pBuffer (PVOID) - input

Pointer to a buffer.

Pointer to the buffer in which the driver names are returned. The names are NULL-terminated strings with one immediately following another. The final string is followed by two NULL characters.

ulCount (ULONG) - input

The maximum number of bytes that can be returned in pBuffer.

rc (ULONG) - returns

Return codes.

On completion, the return value is of type ULONG and is the number of bytes actually returned in pBuffer.