void BackgroundWorker1ProgressChanged(object sender, System.ComponentModel.ProgressChangedEventArgs e)
{
grPreview.CopyFromScreen(startROI.X, startROI.Y, 0, 0, bmpPreview.Size);
pictureBox1.Image = bmpPreview;
if ((float)e.ProgressPercentage / 100 > MaxFV)
{
MaxFV = (float)e.ProgressPercentage / 100;
}
label1.Text = ((float)e.ProgressPercentage / 100).ToString();
label2.Text = "Max: " + MaxFV.ToString();
}
void Button1Click(object sender, EventArgs e)
{
MaxFV = 0;
label2.Text = "Max: " + MaxFV.ToString();
}