HI
1.Are you using C++ or C# for all your code?
2.How is that done?
I think it will print Hello World, if I misunderstand please correct me.
3.Can I choose the font and size?
I think it will be something like below code in picture.
Graphics.DrawString(String, Font, Brush, PointF) method
https://learn.microsoft.com/en-us/dotnet/api/system.drawing.graphics.drawstring?view=net-5.0