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Bots /The Ultimate Palm Robot/ Mukhar & Johnson / 222880-6 / Chapter 7

Chapter 7 Essential Robot Programming Strategies 189

Every time the user taps the button, the program will display a message
box that asks the user to enter a name.

If the user enters a non-empty string, the program will change the displayed
phrase to “Hello, name.”

Here’s our program:

//HelloWorld.c
main() {
int x, y, ev;
string mymsg, name;
graph_on();
mymsg="Hello, World!";
title(mymsg);
while(1) {
clearg();
text(2, 15, mymsg);

P:\010Comp\Bots\880-6\ch07.vp
Monday, May 12, 2003 4:29:28 PM