Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!usc!snorkelwacker!bloom-beacon!INTELLICORP.COM!TRANLE
From: TRANLE@INTELLICORP.COM (Minh Tran-Le)
Newsgroups: comp.windows.x
Subject: problem with XDrawImageString to pixmap on the PS2 AIX server
Message-ID: <9003210235.AA09058@expo.lcs.mit.edu>
Date: 16 Mar 90 20:05:17 GMT
Sender: daemon@athena.mit.edu (Mr Background)
Organization: The Internet
Lines: 69


I am using the R4 server on the PS2 running AIX and the following code
does not seem to work correctly.  Does anybody has a fix or workaround
for it ?

Thanks, Minh Tran-Le

Arpanet: tranle@intellicorp.com
uucp:  ..sun!icmv!mtranle

/* ------------------------------------------------------------------------- */
#include <stdio.h>

#include <X11/Xos.h>
#include <X11/Xatom.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>

/*
 * This small program reproduce a bug in the IBM PS2 X server:
 * when you use XDrawImageString to a pixmap the server
 * will write directly to the screen.
 *
 * to compile it:
 *    cc -o xbug xbug.c -lX11
 */
main()
{
    Display 	*dpy;
    int		screen;
    GC		gc;
    Pixmap	pix;
    Window	w;
    XGCValues	xgcv;
    XSetWindowAttributes xswa;
    char 	*str = "This is the string to print";

    dpy = XOpenDisplay("");
    screen = DefaultScreen(dpy);

    pix = XCreatePixmap(dpy, RootWindow(dpy, screen),
			100, 100, 	/* width and height 	*/
			8);		/* depth		*/

    xgcv.foreground = BlackPixel(dpy,screen);
    xgcv.background = WhitePixel(dpy,screen);
    
    gc = XCreateGC(dpy, pix,
		   GCForeground|GCBackground,
		   &xgcv);

    /*
     * write the string to the pixmap at 20,20
     */
    XDrawImageString(dpy, pix, gc, 20, 20,
		     str, strlen(str));

    /* flush output queue */
    XSync(dpy,False);

    printf("You should not have seen anything written on your screen\n");

    sleep(5);

    exit(0);
}
    
/* ------------------------------------------------------------------------- */
-------