private void MouseTrack_Click(object sender, EventArgs e)
{
TrackingPanel.Width = this.Width;
TrackingPanel.Height = this.ClientRectangle.Height;
TrackingPanel.Top = this.Top;
TrackingPanel.Left = this.Left;
Output.Text = "qwe";
MouseTimer.Tick += (s, ev) =>
{
Output.Text = (new Random()).Next(1000).ToString();
DrawSquare(MousePosition.X, MousePosition.Y, Brushes.BlueViolet, 7);
};
TrackingPanel.Invalidate();
MouseTimer.Start();
MouseTimer.Enabled = true;
}
private void DrawThing(PaintEventHandler drawingLambda)
{
thingsToPaint.Add(drawingLambda);
TrackingPanel.Paint += drawingLambda;
TrackingPanel.Invalidate();
}