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c:graphics.h:rectangle

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c:graphics.h:rectangle [2015/05/06 23:06] (current)
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 +===== rectangle =====
 +
 +
 +====Syntax of rectangle ==== 
 + <code c>
 +#include <graphics.h>
 +void rectangle(int left, int top, int right, int bottom);
 +  </code>
 +
 +
 +==== Description of rectangle ==== 
 +<code c>
 +rectangle draws a rectangle in the current line style, thickness, and
 +drawing color.
 +(left,top) is the upper left corner of the rectangle, and (right,bottom)
 +is its lower right corner.
 +</code>
 +
 +
 +==== Example of rectangle ====
 +<code c>
 +/* rectangle example */
 +
 +#include <graphics.h>
 +#include <stdlib.h>
 +#include <stdio.h>
 +#include <conio.h>
 +
 +int main(void)
 +{
 +   /* request autodetection */
 +   int gdriver = DETECT, gmode, errorcode;
 +   int left, top, right, bottom;
 +
 +   /* 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 */
 +   }
 +
 +   left = getmaxx() / 2 - 50;
 +   top = getmaxy() / 2 - 50;
 +   right = getmaxx() / 2 + 50;
 +   bottom = getmaxy() / 2 + 50;
 +
 +   /* draw a rectangle */
 +   rectangle(left,top,right,bottom);
 +
 +   /* clean up */
 +   getch();
 +   closegraph();
 +   return 0;
 +}
 +</code>
 +
 +
 +==== See also ====
 +[[bar]]
 +[[bar3d]]
 +[[setcolor]]
 +[[setlinestyle]]
 +
 +
 +===== output of rectangle example ===== 
 +
 +    no output of example at the moment
 +    do not hesitate and add it...  
 +
 +
  
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c/graphics.h/rectangle.txt · Last modified: 2015/05/06 23:06 (external edit)

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