/*n Linux compile with gcc connect.c -L/usr/X11R6/lib -lX11

*/

#include<X11/Xlib.h>

#include<X11/Xutil.h>

#include<stdio.h>

int main(){

Display *display_name;

int depth,screen,connection;

/*Opening display and setting defaults*/

display_name = XOpenDisplay(NULL);

screen = DefaultScreen(display_name);

depth = DefaultDepth(display_name,screen);

connection = ConnectionNumber(display_name);

/*Displaying the info gathered*/

printf("The display is::%s\n",XDisplayName((char*)display_name));

printf("Width::%d\tHeight::%d\n",

DisplayWidth(display_name,screen),

DisplayHeight(display_name,screen));

printf("Connection number is %d\n",connection);

if(depth == 1)

printf("You live in prehistoric times\n");

else

printf("You've got a coloured monitor with depth of %d\n",

depth);

/*Closing the display*/

XCloseDisplay(display_name);

}