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/************************************************************************
*
* Purpose: Program extracts information from the X server and displays
* it on the screen.
*
* Notes: Use the following command to compile.
*
* gcc hardware.c -lX11
*
* Author: M.J. Leslie
*
* Date: 26-Mar-95
*
************************************************************************/
/****************** Includes ********************************************/
/* These are in /usr/X386 */
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xos.h>
#include <stdio.h>
main()
{
Display * display;
int screen;
char * display_name=NULL;
Window root;
Visual* visual;
/* Connect to X display server. */
display=XOpenDisplay(display_name);
/* Get screen ID */
screen=DefaultScreen(display);
printf("\n\tInformation extracted from the X server\n");
printf("\t---------------------------------------\n\n");
printf(" X server by \'%s\'\n", ServerVendor(display));
printf(" X Server protocol %d\n", ProtocolVersion(display));
printf(" X server Release %d\n", VendorRelease(display));
printf(" Screen is %dmm high.\n", DisplayHeightMM(display, screen));
printf(" Screen is %dmm wide.\n", DisplayWidthMM(display, screen));
printf(" Screen is %d pixels high.\n", DisplayHeight(display, screen));
printf(" Screen is %d pixels wide.\n", DisplayWidth(display, screen));
visual = DefaultVisual(display,screen);
printf(" %3d Colour map entries", visual->map_entries);
printf(" (Number of colours on the screen at one time).\n");
printf(" %3d Display planes (bits per screen pixel).\n", DisplayPlanes(display, screen));
printf(" There is %d screen(s).\n", ScreenCount (display));
}
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