getlinestyle example in c

Header file:

    graphics.h

Synopsis:

      void getlinestyle (struct linesettingstype *dest);

     struct linesettingstype {

          int linestyle; /* solid, dashed, centered, dotted or user bit line */

          int upattern; /* 16 bit-pattern */

          int thickness; /* Normal width or thick width */

     };

     

Description:

     getlinestyle() returns the current line style, pattern and thickness.

getlinestyle function in c graphics

---

  #include <graphics.h>
  #include <stdlib.h>
  #include <stdio.h>
  #include <conio.h>

  int main(void) {
        /* request auto detection */
        int graphicDriver = DETECT;
        int graphicMode, err;
        struct linesettingstype linfo;
        char linestyle[128], pattern[128], thickness[128];

        char *style[] = { "solid line", "dotted line",
                          "center line", "dashed line",
                          "user bit line" };


        /* initialize graphics and local variables */
        initgraph(&graphicDriver, &graphicMode, "C:/TURBOC3/BGI");

        /* read result of initialization */
        err = graphresult();

        if (err != grOk) {
                /* an error occurred */
                printf("Graphic Error: %s\n",
                                grapherrormsg(err));
                getch();
                return 0;
        }

        /* get information about current line settings */
        getlinesettings(&linfo);

        /* convert line information into strings */

        sprintf(linestyle, "Line style: %s", style[linfo.linestyle]);

        sprintf(pattern, "Line pattern: 0x%x", linfo.upattern);

        sprintf(thickness, "Line thickness: %d", linfo.thickness);

        line(200, 100, 500, 100);

        /* display the information */

        settextjustify(CENTER_TEXT, CENTER_TEXT);

        outtextxy(getmaxx() / 2, 120, linestyle);

        outtextxy(getmaxx() / 2, 140, pattern);

        outtextxy(getmaxx() / 2, 160, thickness);

        /* setting the line style */

        setlinestyle(DOTTED_LINE, 1, 1);

        /* fetching the current line style, pattern and thickness */

        getlinesettings(&linfo);

        sprintf(linestyle, "Line style: %s", style[linfo.linestyle]);

        sprintf(pattern, "Line pattern: 0x%x", linfo.upattern);

        sprintf(thickness, "Line thickness: %d", linfo.thickness);

        line(200, 200, 500, 200);

        /* display the information */

        settextjustify(CENTER_TEXT, CENTER_TEXT);

        outtextxy(getmaxx() / 2, 220, linestyle);

        outtextxy(getmaxx() / 2, 240, pattern);

        outtextxy(getmaxx() / 2, 260, thickness);

        /* changing the line style */

        setlinestyle(DASHED_LINE, 1, 3);

        /* again fetching the current line settings */

        getlinesettings(&linfo);

        sprintf(linestyle, "Line style: %s", style[linfo.linestyle]);

        sprintf(pattern, "Line pattern: 0x%x", linfo.upattern);

        sprintf(thickness, "Line thickness: %d", linfo.thickness);

        line(200, 300, 500, 300);

        /* display the information */

        settextjustify(CENTER_TEXT, CENTER_TEXT);

        outtextxy(getmaxx() / 2, 320, linestyle);

        outtextxy(getmaxx() / 2, 340, pattern);

        outtextxy(getmaxx() / 2, 360, thickness);

        /* clean up */

        getch();

        closegraph();

        return 0;

  }

Output: (getlinestyle built-in function in c graphics.h)

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