Path: utzoo!attcan!uunet!lll-winken!ames!think!bloom-beacon!WHARTON.UPENN.EDU!JONES
From: JONES@WHARTON.UPENN.EDU
Newsgroups: comp.windows.x
Subject: Naive Question about Curses, Xt
Message-ID: <8902200344.AA10242@remote.dccs.upenn.edu>
Date: 20 Feb 89 03:42:00 GMT
Sender: daemon@bloom-beacon.MIT.EDU
Organization: The Internet
Lines: 56

Well, I know what I am trying to do is most likely sinful.  At best
it is a quick and filthy hack.

And to top it off I'm a novice user.

At any rate, I have a program that currently uses curses to provide
primitive screen management.  Without changing (too much) the curses code,
I wanted to be able to add in other widgets using Xt.  

Of course the program works fine using xterm, without trying any fancy
stuff.  After much effort, I was able to get a widget to appear when
the program started up under Xterm.  The problem I am having concerns 
making certain both the Widget and Xterm get the appropriate events at the
appropriate time.  


The extra modifications involve calling
XtInitialize to set up a top level widget, and appropriate child
widgets.  Then the code sits in a big loop obtaining individual
characters from curses (using getch), and processing appropriately.  To include
Xt into the loop, I tried replacing the curses getch() function with the
following code:

int hackgetchar();
{
	XEvent Ev;
	char acharstring[1];
	int c;


	XtNextEvent(&Ev);
	while(Ev.type!=KeyPress)
 	{
		XtDispatchEvent(&Ev);
  		XtNextEvent(&Ev);
	}

	(void) XLookupString(&Ev.xkey,&acharstring,1,NULL,NULL);

	return((int) acharstring[0]);
}


From what I can tell, this bit of code never traps a KeyPress
event.  

Am I missing something or is what I'm trying to do impossible?

I'm running X11 R2 on an IBM RT running AIX version 2.2.1.

Chris Jones
The Wharton School
The University of Pennsylvania
Philadelphia, PA 19104

JONES@WHARTON.UPENN.EDU