public Form1()
{
InitializeComponent();
ZoomSlider.Minimum = 1;
ZoomSlider.Maximum = zoomCentre * 2;
ZoomSlider.Value = zoomCentre;
brightnessControl.Minimum = 0;
brightnessControl.Maximum = 100;
brightnessControl.Value = 0;
maximumRadius.Minimum = 1;
maximumRadius.Maximum = 100;
minimumRadius.Minimum = 0;
minimumRadius.Maximum = 100;
ZoomSlider.Hide();
Zoom.Hide();
}