Path: utzoo!mnetor!uunet!lll-winken!lll-lcc!rutgers!ucla-cs!zen!ucbvax!hplabs!hp-pcd!hpcvlo!julie
From: julie@hpcvlo.HP.COM (Julie Skeen)
Newsgroups: comp.windows.x
Subject: Re: Xr11 Example Programs (fixes)
Message-ID: <3940061@hpcvlo.HP.COM>
Date: 28 Dec 87 22:20:48 GMT
References: <3940058@hpcvlo.HP.COM>
Organization: Hewlett-Packard Co., Corvallis, OR, USA
Lines: 136



/*
 * add a Message Box to Hello World
 */
#include <X11/Xlib.h>
#include <Xr11/Xrlib.h>
#include <time.h>

/*
 * fill a structure to define a Title Bar
 */
xrTitleBarInfo titleBarInfo =
{
   0,                       /* windowId */
   {0,0,0,0},               /* editor rectangle */
   XrVISIBLE | XrSENSITIVE, /* editor state */
   -1, -1,                  /* editor colors; use defaults */
   NULL,                    /* editor font; use defaults */
   "Hello World",           /* Title name */
   NULL,                    /* gadget1; unused */
   NULL                     /* gadget2; unused */
};

xrWindowData windowData;
xrEditor   * t_bar;
xrEvent      messageEvent;
xrMsgBoxInfo msgInfo;
INT8       * myButtons[] = {"Ready", "Not Ready"};


main()
{
   Display * display;
   int       screen;
   Window    windowId;
   XSetWindowAttributes wAttrs;

   /* Open the display specified by the environment variable DISPLAY */
     
      if ((display = XOpenDisplay(0)) == NULL)
      {
         printf ("Cannot open display: %s\n", getenv("DISPLAY"));
         exit (1);
      }

      screen = DefaultScreen(display);


   /* Initialize Xrlib */

      if (XrInit (display, screen, NULL) == FALSE)
      {
         printf ("Could not initialize Xrlib\n");
         exit (1);
      }


   /* Create a window and put it on the display */

      windowId = XCreateSimpleWindow (display, RootWindow(display, screen),
                                      50, 50, 400, 200, 3,
                                      BlackPixel(display, screen),
                                      WhitePixel(display, screen));
      wAttrs.override_redirect = TRUE;
      XChangeWindowAttributes (display, windowId, CWOverrideRedirect, &wAttrs);
      XMapWindow (display, windowId);


   /* Associate this window with Xrlib functionality */

      XrSetRect (&windowData.windowRect, 50, 50, 400, 200);
      windowData.foreTile = BlackPixmap;
      windowData.backTile = WhitePixmap;
      XrInput (windowId, MSG_ADDWINDOW, &windowData);


   /* Draw the Title Bar */

      titleBarInfo.editorWindowId = windowId;
      t_bar = XrTitleBar (NULL, MSG_NEW, &titleBarInfo);



                                                        /*
   1. Select the type of input for the window.
                                                         */

      XSelectInput (display, windowId, ButtonPressMask | ButtonReleaseMask |
                                       KeyPressMask);


                                                        /*
   2. Put up a message box.
                                                         */

      msgInfo.messageOrigin.x = 50;
      msgInfo.messageOrigin.y = 50;
      msgInfo.relativeTo = windowId;
      msgInfo.messageText = "Are you ready?";
      msgInfo.messageButtons = myButtons;
      msgInfo.numButtons = 2;

      /*
       * Put up a message box; upon return, examine value1:
       *  value1 == 1, iff the user selected the 'not ready' button.
       *  value1 == 0, iff the user hit a key or selected the 'ready' button.
       *  value1 == -1, if the message box times out.
       */

      do
      {
         XrMessageBox (&msgInfo, MSG_EDIT, &messageEvent);
      }  while (messageEvent.value1 != 0);


                                                        /*
   3. Redraw the Title Bar.
                                                         */

      XrTitleBar (t_bar, MSG_REDRAW, XrREDRAW_ALL);

      /* Write hello world message to the window */

      XSetForeground (display, xrEditorGC1, BlackPixel(display, screen));
      XDrawString (display, windowId, xrEditorGC1, 100, 80, "Hello World", 11);

      /* Send all those instructions to the X window server to process */

      XFlush (display);

      /* Sleep, close the display, and then exit */

      sleep (5);
      XCloseDisplay (display);

}