Thread: inputString issue

I have

Code:

char msg[] = (echoOut,inputString.length())+1);  //char
or 
  Serial.begin(9600);
  inputString.reserve(40); //(200
char msg[] = "(inputString)";  //char
  Serial.println("connecting ...");
  if (twitter.post(msg)) {

neither works.. of course the "(inputString)" simply sends (inputString) to twitter.
I need the serial data from inputString to (twitter.post(????)

please help