How to define a pin in Code composer studio

Hello,

I'm total newbie and i have my first problem: 

I try define a pin in my launchpad with msp430g2553 but i don't get it.

In IAR i know this:

#define LCD_4   P1OUT_bit.P1OUT_0

But in code composer don't work and i think it's because i don't use io430.h  because there isn't in CCS. I use the msp430.h library.

can somebody tell me pleaso how can i define the pin in CCS?

Thanks