data_displayer/Form1.cs

using System.Globalization;
using System.Reflection.Emit;
using System.Runtime.InteropServices;
using System.Windows.Forms;

namespace data_displayer
{
    public partial class Form1 : Form
    {
        [DllImport("user32.dll", SetLastError = true)]
        private static extern bool SetWindowPos(
        IntPtr hWnd,
        IntPtr hWndInsertAfter,
        int x,
        int y,
        int cx,
        int cy,
        uint uFlags
    );

        // ¶¨ÒåSetWindowPosµÄһЩ³£Á¿
        private static readonly IntPtr HWND_BOTTOM = new IntPtr(1);
        private const uint SWP_NOMOVE = 0x0002;
        private const uint SWP_NOSIZE = 0x0001;
        public Form1()
        {
            SetWindowPos(this.Handle, HWND_BOTTOM, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE);
            InitializeComponent();
            BackColor = Color.White;
            TransparencyKey = Color.White;
        }

        private void timer1_Tick(object sender, EventArgs e)
        {
            label1.Text = DateTime.Now.ToString("O");
            GregorianCalendar WgregorianCalendar = new GregorianCalendar();
            int WweekOfYear = WgregorianCalendar.GetWeekOfYear(DateTime.Now, CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday);
            string Wtime = WweekOfYear.ToString();
            GregorianCalendar SgregorianCalendar = new GregorianCalendar();
            int SweekOfYear = SgregorianCalendar.GetWeekOfYear(Settings1.Default.Start_of_school_week, CalendarWeekRule.FirstFourDayWeek, DayOfWeek.Monday);
            int SWeek = WweekOfYear - SweekOfYear + 1;
            label2.Text = "W" + Wtime + "|" + "S" + SWeek.ToString();
            label3.Text = Convert.ToInt32(DateTime.Now.DayOfWeek.ToString("d")).ToString();
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            int ScreenWidth = Screen.PrimaryScreen.WorkingArea.Width;
            int x = ScreenWidth - Width - 5;
            int y = 5;
            Location = new Point(x, y);
        }

        private void settingsToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Form2 form2 = new Form2();
            form2.ShowDialog();
        }

        private void aboutToolStripMenuItem_Click(object sender, EventArgs e)
        {
            AboutBox1 aboutBox1 = new AboutBox1();
            aboutBox1.ShowDialog();
        }
    }
}