如何在 C# windows 应用程序的表单加载事件中的 process.start("notepad.exe") 之前播放 windows 媒体播放器

Question

i want to call first media player and then notepad in form_load event, but notepad is opening first and media player is playing after the form is fully loaded, how to play media player first and then open notepad.

below is the code using in form_load.

   string fileName = Environment.CurrentDirectory + "\\Setting.ini";
        var lines = File.ReadAllLines(fileName);
        foreach (var s in lines)
        {

            string[] split = s.Split(',');
            if (split[0] == "exe")
            {

                this.WindowState = FormWindowState.Maximized;
                Process pro = new Process();
                pro.StartInfo.FileName = split[1] + ".exe";
                pro.Start();
                Screen screen = Screen.FromControl(this);
                if (screen != null && !screen.WorkingArea.IsEmpty)
                {
                    int sizeDiff = this.Size.Width - this.ClientSize.Width;
                    var maxSize = new Size(screen.WorkingArea.Width + sizeDiff, screen.WorkingArea.Height + sizeDiff);
                    this.MaximumSize = maxSize;
                }
                Thread.Sleep(1000 * Convert.ToInt32(split[2]));
                pro.Kill();

            }
            else if (split[0] == "video")
            {

                string[] files = Directory.GetFiles(split[1]);

                axWindowsMediaPlayer1.uiMode = "none";
                axWindowsMediaPlayer1.settings.setMode("loop", true);
                axWindowsMediaPlayer1.settings.autoStart = true;
                WMPLib.IWMPPlaylist playlist = axWindowsMediaPlayer1.playlistCollection.newPlaylist("myplaylist");
                for (int i = 0; i < files.Length; i++)
                {
                    // string fileName = string.Empty;
                    WMPLib.IWMPMedia media;
                    media = axWindowsMediaPlayer1.newMedia(files[i]);
                    playlist.appendItem(media);
                }
                axWindowsMediaPlayer1.currentPlaylist = playlist;

                axWindowsMediaPlayer1.Ctlcontrols.play();
            }
        }

Answer 1

Create a thread for Notepad. Tell this thread to wait media player to run, when media player starts then open notepad. You can monitor the applications running with c#.

You mustn't check the media player's status in the same thread.

Answer 2

Create two threads:

1. Keep the notepad thread priority as max
2. Start the second thread only when the first thread has completed its task.