private void CheckFile(object sender, EventArgs e)
{
int size;
try { size = File.ReadAllBytes((sender as TextBox).Text).Length; } catch { size = -1; };
(sender == Video1 ? panel1 : panel2).BackColor = BVBreaker.checkvideosize(size) ? Color.LightGreen : Color.LightPink;
B_Dump.Enabled = panel1.BackColor == Color.LightGreen && panel2.BackColor == Color.LightGreen;
}