Trouble with curses

[ravim]

In article <1990Oct27.173826.29771 at NCoast.ORG> ramsey at NCoast.ORG (Cedric Ramsey) writes:
 >
 >Hi, this is Connie. I'm accessing this net with a friends account. 
 >I have a question about the curses package. Heres the skeletal code:
 >
 >#include <stdio.h>
 >#include <curses.h>
 >#include <term.h>
 >
 >    ch = getch();
 >    switch(ch) {
 >    case 27: /* escape */
 >      do_escape();
 >      break;
 >      [ ... irrelevant stuff deleted ... ]
 >      }
 >  }
 >}
 >
 >do_escape() {
 >  switch(tolower(getch())) {

   If 'tolower' routine is a macro (defined in 'ctype.h') that evaluates
   its argument twice, then this could be the cause for your problem of
   having to press 'E' twice.

   One solution is :-

do_escape() {
  register char c;

  c = getch();
  switch(tolower(c)) {
    case 'e':
     ....

 >Basically what is happening is the the user presses ESCAPE key follow by 
 >'E' key to exit. But I have to press 'E' twice after pressing ESCAPE 
 >to get an exit. I can't figure out why. Does anybody know ?
 >
 >I would prefer a post to net but if you must send mail please do not
 >send it to this box instead send it to me at aj398 at CLEVELAND.FREENET.EDU ,
 >
 >Thankyou.


  Good luck.

	-	Ravi Mandava

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Ravi Mandava			e-mail :	ravim at gtenmc.gtetele.com
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