This function draws a cicle on the display.

Syntax

void DrawCircle(
  int cx,
  int cy,
  int r,
  int color
);

Parameters

cx

[in] Specifies the x-coordinate position of the center of the circle.

cy

[in] Specifies the y-coordinate position of the center of the circle.

r

[in] Specifies the radius of the circle

color

[in] Specifies the color of the circle line.

Value	Description
0xRRGGBB	Optional specification (RR: red, GG: green, BB: blue)
RGB_WHITE	White (0xFFFFFF)
RGB_RED	Ret (0xFF0000)
RGB_GREEN	Green (0x00FF00)
RGB_BLUE	Blue (0x0000FF)
RGB_MAGENTA	Magenta (0xFF00FF)
RGB_CYAN	Cyan (0x00FFFF)
RGB_YELLOW	Yellow (0xFFFF00)
RGB_BLACK	Black (0x000000)

Return value

None

Remarks

This function uses the dot coordinates of the screen to draw the line.
The values that can be set are as follows.
X （Left and Right）： 0 〜 (DISP_WIDTH - 1)
Y （Up and Down）： 0 〜 (DISP_HEIGHT - 1)
When the display of the status bar is set, the Y coordinate values that can be set are as follows.
Y （Up and Down）： 0 〜 (DISP_HEIGHT - 17)

Value	Description
DISP_WIDTH	128 pixel
DISP_HEIGHT	160 pixel

Requirements

Header file:

lib.h

Library file:

libSTARTUPOPH5000.a

Sample

#include <stdio.h>
#include "lib.h"

void main(void)
{
    long color[5] = {RGB_WHITE,RGB_RED,RGB_GREEN,RGB_BLUE,RGB_BLACK};
    int lvIndex;
    printf("[DrawCircle]\n");
    printf("Please any key\r");
    ResetKey();
    while(!kbhit())
        Idle();
    for (lvIndex = 0; lvIndex < 5; lvIndex++)
    {
        printf("Please any key\r");
        DrawCircle(DISP_WIDTH/2, DISP_HEIGHT/2, DISP_WIDTH/4, color[lvIndex]);
        ResetKey();
        while(!kbhit())
            Idle();
    }
}