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c:graphics.h:getgraphmode

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c:graphics.h:getgraphmode [2015/05/06 23:06] (current)
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 +===== getgraphmode =====
 +
 +
 +====Syntax of getgraphmode ==== 
 + <code c>
 +#include <graphics.h>
 +int getgraphmode(void);
 +  </code>
 +
 +
 +==== Description of getgraphmode ==== 
 +<code c>
 +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.
 +</code>
 +
 +
 +==== Example of getgraphmode ====
 +<code c>
 +/* 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;
 +}
 +</code>
 +
 +
 +==== See also ====
 +[[getmoderange]]
 +[[initgraph]]
 +[[restorecrtmode]]
 +[[setgraphmode]]
 +
 +
 +===== output of getgraphmode example ===== 
 +
 +    no output of example at the moment
 +    do not hesitate and add it...  
 +
 +
  
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c/graphics.h/getgraphmode.txt · Last modified: 2015/05/06 23:06 (external edit)

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