How To Get Strings From Inside A Plugin ?

Good morning everybody,

I'm here once again asking for help. Here's my problem:

I have a table that I use in my text mining clustering third-party algorithm. The table is as follows:

ID: primary key (int)

ID_DOC: an ID I use to know from what document a term came from (int)

ID_TERMO: the term ID (int)

TERMO: the term itself (varchar(max))

FREQ: the term frequency, usually TFxIDF (real)

Alright... I need the term itself to do some visualization. What I want to do is to get each case's term and store'em on a vector<char*>. So I did some changes on the ProcessCase method. In this method the data (each variable of the case) can be accessed rolling over the case using a DM_STATE_VALUE* as follows:

DM_STATE_VALUE* xpto = (DM_STATE_VALUE*) rgValue;

for(unsigned int i=0;i<_cAttribute;i++) { // _cAttribute is the number of variables

double aux = xpto.r8;

//Do some calculation using aux

}

Alright... It works quite well when I only have real and int data types on the database. But how the get the term collumn (varchar(max)) ?

How to modify the DM_STATE_VALUE union to accept strings as well ?

Any clues are wellcome.

Thanks a lot once more,

-Renan