Interview Question in Visual Studio 2008


 

Interview Question :: Windows GUI C++ question

I'm making a postfix calculator in C++ with a windows GUI. There isn't buttons for each number, just a text box where you type in your postfix expression and a result box that displays the result after pressing the calculate button.
I'm using Visual Studio 2008 express, and I've already made the form and buttons.

My question is, how am I going to read in the input from the input box character by character? This is my first foray into GUI programming so I'm kind of confused. Thanks in advance.
by ksk