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c:graphics.h:getbkcolor

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c:graphics.h:getbkcolor [2015/05/06 23:06] (current)
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 +===== getbkcolor =====
 +
 +
 +====Syntax of getbkcolor ==== 
 + <code c>
 +#include <graphics.h>
 +int getbkcolor(void);
 +  </code>
 +
 +
 +==== Description of getbkcolor ==== 
 +<code c>
 +getbkcolor returns the current background color. (See the table in
 +setbkcolor for details.)
 +</code>
 +
 +
 +==== Example of getbkcolor ====
 +<code c>
 +/* getbkcolor example */
 +
 +#include <graphics.h>
 +#include <stdlib.h>
 +#include <string.h>
 +#include <stdio.h>
 +#include <conio.h>
 +
 +int main(void)
 +{
 +   /* request autodetection */
 +   int gdriver = DETECT, gmode, errorcode;
 +   int bkcolor, midx, midy;
 +   char bkname[35];
 +
 +   /* 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;
 +   setcolor(getmaxcolor());
 +
 +   /* for centering text on the display */
 +   settextjustify(CENTER_TEXT, CENTER_TEXT);
 +
 +   /* get the current background color */
 +   bkcolor = getbkcolor();
 +
 +   /* convert color value into a string */
 +   itoa(bkcolor, bkname, 10);
 +   strcat(bkname, " is the current background color.");
 +
 +
 +
 +   /* display a message */
 +   outtextxy(midx, midy, bkname);
 +
 +   /* clean up */
 +   getch();
 +   closegraph();
 +   return 0;
 +}
 +</code>
 +
 +
 +==== See also ====
 +[[getcolor]]
 +[[getmaxcolor]]
 +[[getpalette]]
 +[[setbkcolor]]
 +
 +
 +===== output of getbkcolor example ===== 
 +
 +    no output of example at the moment
 +    do not hesitate and add it...  
 +
 +
  
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c/graphics.h/getbkcolor.txt · Last modified: 2015/05/06 23:06 (external edit)

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