How do I get Texts in a .indd file to a wordpad

I'm running CS6 & developing a pluging for that.

Currently I'm reading texts written in a .indd file & print them to a text file using ITextModelClass..

But I can't read texts written as TextVariable & I tried to convert them to strings using

ITextVariable*  textVariable,

textVariable->VariableToString(varUIDRef, temp, kTrue);

when i run the above code, it returns texts that are not relevant to the current .indd file.

when i use "kFalse" instead of kTrue it gives a runtime error & return nothing.

So how can i convert "TextVariable " to a readable text.

Thanks..