draw triangle of green and bg of yellowClosed

Question

Hello,
    how t write program in c/c++ using openGL TO DRAW TRIANGLE OF GREEN COLOR ON A BACKGROUND OF YELLOW COLOR.......
PLZ RPLY

iveal · Accepted Answer

Dear Sir, 

The following code is the basics for graphic designing in C++ programming:

#include <allegro.h>

BITMAP *xSprite;
BITMAP *oSprite;

int main(){
 
    allegro_init();
    install_keyboard();
    set_color_depth(16);
    set_gfx_mode( GFX_AUTODETECT, 640, 480, 0, 0);
    
    xSprite = load_bitmap( "x.bmp", NULL);
    
    oSprite = load_bitmap( "o.bmp", NULL);

    acquire_screen();
    
    line( screen, 200, 0, 200, 480, makecol( 255, 255, 255));
    line( screen, 400, 0, 400, 480, makecol( 255, 255, 255));
    line( screen, 0, 150, 680, 150, makecol( 255, 255, 255));
    line( screen, 0, 300, 680, 300, makecol( 255, 255, 255));
    
    draw_sprite( screen, xSprite, 0, 0);
    draw_sprite( screen, oSprite, 200, 0);
    draw_sprite( screen, xSprite, 400, 0);
    
    draw_sprite( screen, oSprite, 0, 150);
    draw_sprite( screen, xSprite, 200, 150);
    draw_sprite( screen, oSprite, 400, 150);

    draw_sprite( screen, oSprite, 0, 300);
    draw_sprite( screen, xSprite, 200, 300);
    draw_sprite( screen, oSprite, 400, 300);
        
    release_screen();

    readkey();
    
    return 0;
    
}   
END_OF_MAIN();


Thanks in advance.

Draw triangle of green and bg of yellow

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