Alright then, if you want it spoon-fed to you, how about:
Code:
int c=getch();
Then see what c contains when the user presses "e", for example by using printf, and if you need an example of that as well then it might be something like
Code:
printf("%d\n",c);
Then you can test for that specific value. And here's an example:
Code:
int c=getch();
if (c==CODE_FOR_E)
{
  printf("User pressed E\n");
}
(change CODE_FOR_E to the number returned by the previous bit).