SFML on Termux

[yoshy3904]

I have compiled a sfml application with the sfml package in the x11-repo. It should open a 200x200 px window displaying a green circle.

#include <SFML/Graphics.hpp>

int main()
{
    sf::RenderWindow window(sf::VideoMode(200, 200), "SFML works!");
    sf::CircleShape shape(100.f);
    shape.setFillColor(sf::Color::Green);
    while (window.isOpen())
    {
        sf::Event event;
        while (window.pollEvent(event))
        {
            if (event.type == sf::Event::Closed)
                window.close();
        }
        window.clear();
        window.draw(shape);
        window.display();
    }
    return 0;
}

I have problems running the application. I set up an VNC-Server, set DISPLAY=:0, but when trying to run the application ./sfml-app I get the error:
Error of failed request: BadMatch(invalid parameter attributes)
Major opcode of failed request: 1 (X_CreateWindow)
Serial number of failed request: 14
Current serial number in output stream: 16

[sylirre]

Try setting up a basic graphical environment using fluxbox window manager. Some programs fail to run when raw X server is used.

[yoshy3904]

Changing the window manager did not help. I used termux-x11 which worked. Talked about this more in another issue