textwidth function in c

textwidth function returns the width of a string in pixels.
Declaration :- int textwidth(char *string);

C programming source code for textwidth

#include<graphics.h>
#include<conio.h>
 
main()
{
   int gd = DETECT, gm, width;
   char array[100];
 
   initgraph(&gd, &gm, "C:\\TC\\BG I");
 
   width = textwidth("C programming");
 
   sprintf(array,"Textwidth = %d",width);
   outtext(array);
 
   getch();
   closegraph();
   return 0;
}