getgraphmode

Syntax

#include <graphics.h>
int getgraphmode(void);

Description

Your program must make a successful call to initgraph before calling getgraphmode.

The enumeration graphics_mode, defined in graphics.h, gives names for the predefined graphics modes. For a table listing these enumeration values, refer to the description for initgraph.

Return Value

getgraphmode returns the graphics mode set by initgraph or setgraphmode.

Windows Notes

The winbgim version of getgraphmode returns VGAHI for the graphmode, regardless of how initgraph was called. However, the screen is not necessarily 640 x 480.

See also

getmoderange

initgraph

restorecrtmode

setgraphmode

Example

/* getgraphmode example */ 

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

int main(void)
{
   /* request autodetection */
   int gdriver = DETECT, gmode, errorcode;
   int midx, midy, mode;
   char numname[80], modename[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:");
      getch();
      exit(1);               /* terminate with an error code */
   }

   midx = getmaxx() / 2;
   midy = getmaxy() / 2;

   /* get mode number and name strings */
   mode = getgraphmode();
   sprintf(numname, "%d is the current mode number.", mode);
   sprintf(modename, "%s is the current graphics mode.", getmodename(mode));

   /* display the information */
   settextjustify(CENTER_TEXT, CENTER_TEXT);
   outtextxy(midx, midy, numname);

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

   /* clean up */
   getch();
   closegraph();
   return 0;
}