How can I convert this to 32 bit, it's a unsupported 16-bit application

#include <SFML/Graphics.hpp>
using namespace sf;

int width = 1024;
int height = 720;

void drawQuad(RenderWindow &w, Color c, int x1,int y1,int w1,int x2,int y2,int w2)
{
    ConvexShape shape(4);
    shape.setFillColor(c);
    shape.setPiont(0, Vector2f(x1-w1, y1));
    shape.setPoint(1, Vector2f(x2-w2, y2));
    shape.setPoint(2, Vector2f(x2+w2, y2));
    shape.setPoint(3, Vector2f(x1+w1, y1));
    w.draw(shape);
}
int main()
{
   RenderWindow app(Videomode (width, height), "3D Test 0.1");
   app.setFrameRateLimit(60);
   while (app.isOpen())
    {
        Event e;
        while (app.pollEvent(e))
            {
                if (e.type == Event::Closed)
                    app.close();
            }
        app.clear();
        drawQuad(app, Color::Green, 500, 500, 200, 500, 300, 100);
        app.display();
    }
    return 0;
}