public Frm_Main()
{
InitializeComponent();
//控制ListVIew的行距和列距
PublicClass.SendMessage(this.lvFriend.Handle, PublicClass.LVM_SETICONAPACING, 0, 0x10000 * 70 + 130);//70为行距，120为列距（跟图片大小有关）
}
//拖动窗体
private void Frm_Login_MouseDown(object sender, MouseEventArgs e)
{
PublicClass.ReleaseCapture(); //用来释放被当前线程中某个窗口捕获的光标
PublicClass.SendMessage(this.Handle, PublicClass.WM_SYSCOMMAND, PublicClass.SC_MOVE + PublicClass.HTCAPTION, 0); //向Windows发送拖动窗体的消息
}
