#include <graphics.h>

void getlinesettings(struct linesettingstype *lineinfo);

getlinesettings fills a linesettingstype structure pointed to by lineinfo with information about the current line style, pattern, and thickness.

The linesettingstype structure is defined in graphics.h as follows:

struct linesettingstype {

   int linestyle;

   unsigned upattern;

   int thickness;


linestyle specifies in which style subsequent lines will be drawn (such as solid, dotted, centered, dashed). The enumeration line_styles, defined in graphics.h, gives names to these operators:
NameValue   Description
SOLID_LINE 0 Solid line
DOTTED_LINE 1 Dotted line
CENTER_LINE 2 Centered line
DASHED_LINE 3 Dashed line
USERBIT_LINE    4 User-defined line style
thickness specifies whether the width of subsequent lines drawn will be normal or thick.
NameValue   Description
NORM_WIDTH 1 1 pixel wide
THICK_WIDTH    3 3 pixels wide

Return Value

See also


/* getlinesettings example */ 

#include <graphics.h>

#include <stdlib.h>

#include <stdio.h>

#include <conio.h>

/* the names of the line styles supported */


int main(void)


   /* request autodetection */

   int gdriver = DETECT, gmode, errorcode;

   struct linesettingstype lineinfo;

   int midx, midy;

   char lstyle[80], lpattern[80], lwidth[80];

   /* initialize graphics and local variables */

   initgraph(&gdriver, &gmode, "");

   /* read result of initialization */

   errorcode = graphresult();

   if (errorcode != grOk) {  /* an error occurred */

      printf("Graphics error: %s\n", grapherrormsg(errorcode));

      printf("Press any key to halt:");


      exit(1);               /* terminate with an error code */


   midx = getmaxx() / 2;

   midy = getmaxy() / 2;

   /* get information about current line settings */


   /* convert line information into strings */

  sprintf(lstyle, "%s is the line style.", lname[lineinfo.linestyle]);

  sprintf(lpattern, "0x%X is the user-defined line pattern.", lineinfo.upattern);

  sprintf(lwidth, "%d is the line thickness.", lineinfo.thickness);

   /* display the information */

   settextjustify(CENTER_TEXT, CENTER_TEXT);

   outtextxy(midx, midy, lstyle);

   outtextxy(midx, midy+2*textheight("W"), lpattern);

   outtextxy(midx, midy+4*textheight("W"), lwidth);

   /* clean up */



   return 0;


Back to index