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c:graphics.h:getpalettesize

getpalettesize

Syntax of getpalettesize

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

Description of getpalettesize

getpalettesize is used to determine how many palette entries can be set
for the current graphics mode. For example, the EGA in color mode returns
16.

Example of getpalettesize

/* getpalettesize example */
 
#include <graphics.h>
#include <stdlib.h>
#include <stdio.h>
#include <conio.h>
 
int main()
{
   /* request autodetection */
   int gdriver = DETECT, gmode, errorcode;
   int midx, midy;
   char psize[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;
 
   /* convert palette size info into string */
   sprintf(psize, "The palette has %d modifiable entries.",getpalettesize
());
 
   /* display the information */
   settextjustify(CENTER_TEXT, CENTER_TEXT);
   outtextxy(midx, midy, psize);
 
   /* clean up */
   getch();
   closegraph();
 
   return 0;
}

See also

output of getpalettesize example

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c/graphics.h/getpalettesize.txt · Last modified: 2015/05/06 23:06 (external edit)

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