MATLAB and DCOM server -> passing function parameters

[mos7you]

Hi,

I am a new user in MATLAB and DCOM. I created a dcom server object in MATLAB with the line:
h = actxserver('simulator.simgencontrol')
Till here no problems. I have an external file 'Structs.h' which contains many structs defenitions, so i loaded it in MATLAB so matlab would know those defenitions. Till here no problems. In the DCOM interface i have a function:
GetStructs([out] NewStruct_S* m_s)
I want to call this function from the MATLAB. In order to do so i need to create an object which is a pointer to NewStruct_S and i do it matlab with this line:
p = libpointer('NewStruct_S')]
Till Here also no problems (p gets the appropriate fields). Now, from the matlab i want to make a call to the given function, so i write:
h.GetStructs(p)
Here i get an error:
Invoke Error: The parameter is incorrect

Does anyone can advice me how whould i handle this problem.

Thanks.
mos