Can't quite get my head around this one.

I'm having trouble using a DLL. The simple functions I can handle, but when it comes to arrays........

Documentation (VB I guess) says:
Declaration:
long IORead {long numChannels,
long *channelIDs,
float (*input)[4],
long *state }

where:
channelIDs is an array of integers (0,1,2,3)
input is a pointer to a 4096 x 4 array
and state is a pointer to a 4096 element array

I’ve tried:

DECLARE long IORead IN SomeDLL.dll ;
long numChannels, ;
string *channelIDs, ;
string *input, ;
string *state

numChannels = 4
channelIDs = CREATEBINARY( ‘0123’)
input = space(4096 x 4)
state = space(4096)

errorNo = UORead (;
numChannels, ;
*channelIDs, ;
*input , ;
*state ;
)

I get an error returned 'Invalid Array Size or Value'

Can anyone advise me what I'm doing wrong.