using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; namespace SkypeDemo { public partial class Form1 : Form { int panelWidth; bool Hidden; public Form1() { InitializeComponent(); panelWidth = PanelSlide.Width; Hidden = false; } private void button1_Click(object sender, EventArgs e) { timer1.Start(); } private void timer1_Tick(object sender, EventArgs e) { if (Hidden) { PanelSlide.Width = PanelSlide.Width + 10; if (PanelSlide.Width >= panelWidth) { timer1.Stop(); Hidden = false; this.Refresh(); } } else { PanelSlide.Width = PanelSlide.Width - 10; if (PanelSlide.Width <= 0) { timer1.Stop(); Hidden = true; this.Refresh(); } } } private void button7_Click(object sender, EventArgs e) { Application.Exit(); } } }