掌機 - Nintendo 3DS - C/C++ - SDL v1.2 - GFX - Circle

參考資訊：
https://libctru.devkitpro.org/index.html
https://github.com/devkitPro/3ds-examples

main.c

#include <stdio.h>
#include <stdlib.h>
#include <SDL.h>
#include <SDL_gfxPrimitives.h>
   
int main(void)
{
    SDL_Surface *screen = NULL;

    SDL_Init(SDL_INIT_VIDEO);
    screen = SDL_SetVideoMode(400, 240, 16, SDL_HWSURFACE);
    circleRGBA(screen, 50, 100, 20, 0xff, 0x00, 0x00, 0xff);
    aacircleRGBA(screen, 100, 100, 20, 0x00, 0xff, 0x00, 0xff);
    filledCircleRGBA(screen, 150, 100, 20, 0x00, 0x00, 0xff, 0xff);
    SDL_Flip(screen);
    SDL_Delay(3000);

    SDL_Quit();
    return 0;
}

完成