Path: utzoo!utgpu!watserv1!watmath!att!bellcore!rutgers!sunybcs!opus.eng.buffalo.edu!narain
From: narain@opus.eng.buffalo.edu (Sudeep Narain)
Newsgroups: comp.lang.c++
Subject: Beginner Q on X & C++
Keywords: XEvent *, XMapping Event *
Message-ID: <28503@eerie.acsu.Buffalo.EDU>
Date: 16 Jun 90 16:50:13 GMT
Sender: news@acsu.Buffalo.EDU
Reply-To: narain@acsu.buffalo.edu (Sudeep Narain)
Organization: SUNY Buffalo, Academic Computing Services
Lines: 29

Hi,
   I am trying to use X Windows from a C++ program & I get these two 
compiler errors :

: error: no standard conversion of  XEvent * to  XMappingEvent *
: error: no standard conversion of  XEvent * to  XKeyEvent *

The lines of code which it refers to is :


	 case MappingNotify:   /* process keyboard mapping changes */
---->			XRefreshKeyboardMapping(&myevent);
			break;
	 case KeyPress:        /* process keyboard input */
---->			i = XLookupString(&myevent, text, 10,&mykey, 0);
			if(i == 1 && text[0] == 'q') watch = 1;
			break;

"myevent" is defined as of type XEvent.

Wont including Xlib.h & Xutil.h take care of these castings ?

This is my first attempt with X and C++. Any pointers will be 
greatly appreciated. Please E-mail your responses to :

narain@acsu.buffalo.edu

thanks,
Sudeep