c# winform窗体边框风格的设计

1.首先，窗体的FormBorderStyle设置成None,不要控制边框。

2.然后，TransparencyKey和BackColor颜色设置成相同的,这样,窗体就透明了。

3.最后，窗体的拖动

private void pictureBox1_MouseMove(object sender, MouseEventArgs e)
{
     if (e.Button == MouseButtons.Left)
     {
          this.Left += e.Location.X - this.oldX;
          //新的鼠标位置
       this.Top += e.Location.Y - this.oldY;
      }
}

private int oldX = ;
private int oldY = ;
private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
{
     if (e.Button == MouseButtons.Left)
     {
          this.oldX = e.Location.X;
          //鼠标原来位置
       this.oldY = e.Location.Y;
      }
}