How to make color as alpha (remove a color) in SFML?

Question

I have a texture in the sprite and I want to make background invisible (white color).

sf::Texture texBohatera;
texBohatera.loadFromFile("bohater.png");

sf::Sprite bohater;
bohater.setTexture(texBohatera);

Answer 1

Something like this should work.

sf::Image image;
image.LoadFromFile("bohater.png");
image.CreateMaskFromColor(sf::Color::White);

sf::Texture texBohatera;
texBohatera.LoadFromImage(image);

sf::Sprite bohater;
bohater.SetTexture(texture);

(Disclaimer, I didn't test it because I don't want to install SFML)