关于C# 开发Winfrom事后总结

一：要求能读取文件夹中视频及图片并判断

 private void Form1_Load(object sender, EventArgs e)
 {
  string foldPath = "路径";//获取该目录下的文件 
                    
  string[] files = Directory.GetFiles(@foldPath + "\\", "*.*", 
  System.IO.SearchOption.TopDirectoryOnly);
            var th = new Thread(delegate ()
            {
                //遍历每个文件
                for (int i = 0; i < files.Length; i++)
                {
                    //判断当前组文件中第i个文件
                    if (IsPicture(files[i]))  //图片
                    {
                        Bitmap picture = new Bitmap(files[i]);
                        ChangeBringToFrontImage(picture);
                    }


                    if (IsVideo(files[i]))    //视频
                    {
                        ChangeBringToFrontVideo(files[i]);

                    }


                    if (i == files.Length - 1)
                    {
                        //从0开始重新播放
                        i = 0;
                    }
                }
            });
//开辟新线程
//th.IsBackground = true;
//th.Start();
 }
//定义判断是否为图片
public bool IsPicture(string filePath)
{

    var extension = Path.GetExtension(filePath).ToLowerInvariant();
    return extension == ".jpg" ||
           extension == ".jpeg" ||
           extension == ".png" ||
           extension == ".gif" ||
           extension == ".bmp" ||
           extension == ".tiff" ||
           extension == ".ico";


}

//定义判断是否为视频
public bool IsVideo(string filePath)
{
    var extension = Path.GetExtension(filePath).ToLowerInvariant();
    return extension == ".wmv" ||
           extension == ".asf" ||
           extension == ".asx" ||
           extension == ".avi" ||
           extension == ".mp4" ||
           extension == ".mov" ||
           extension == ".mkv";
}

二：视频跟图片要等比例放大缩小

pictureBox1.Dock = DockStyle.Fill;
axWindowsMediaPlayer1.Dock = DockStyle.Fill;

三：更换窗体运行图标

// 移除窗体边框
this.FormBorderStyle = FormBorderStyle.None;

// 允许用户调整窗体大小
this.SizeGripStyle = SizeGripStyle.Show;

//设置窗体的最大大小和最小大小
this.MaximumSize = new Size(1920, 1080);
this.MinimumSize = new Size(400, 300);


//设置窗体的开始位置（CenterScreen将窗体居中）
this.StartPosition = FormStartPosition.CenterScreen;

// 设置窗体的举头文本
this.Text = "Trs宣传播报";

// 设置窗体的背景色
//this.BackColor = Color.Lime;

// 设置窗体50%的透明度
//this.Opacity = 0.5;

//更改窗体图标
this.Icon = Resources.Trs;

四：要求可配置文件路径及更换时间

//config

  <appSettings>
    <add key="Time" value="4000" /><!--循环的时间-->
    <add key="FromPath" value="C:\Users\N01465\Desktop\1" /><!--播放路径-->
  </appSettings>

//From1_cs
 // 强制重新加载app.config
 ConfigurationManager.RefreshSection("appSettings");

 // 读取所有设置
 Time     = ConfigurationManager.AppSettings["Time"];
 FromPath = ConfigurationManager.AppSettings["FromPath"];

五：运行渲染的过程中不运行卡顿

//如一 开启新线程不使用主线程去渲染
private void ChangeBringToFrontImage(Image img)
{
    if (pictureBox1.InvokeRequired)
    {
        // 使用Invoke安全地从其他线程调用
        pictureBox1.Invoke(new Action(() =>
        {
            pictureBox1.SizeMode = PictureBoxSizeMode.StretchImage;
            axWindowsMediaPlayer1.Visible = false;
            pictureBox1.Visible = true;
            pictureBox1.Image = img;
            Delay(Convert.ToInt32(Time));
        }));
    }
    else
    {
        // 如果已经在创建控件的线程上，直接设置值
        pictureBox1.Visible = true;
        axWindowsMediaPlayer1.Visible = false;
        pictureBox1.Image = img;
        Thread.Sleep(Convert.ToInt32(Time));
    }
}

private void ChangeBringToFrontVideo(string filePath)
{
    if (axWindowsMediaPlayer1.InvokeRequired)
    {
        // 使用Invoke安全地从其他线程调用
        axWindowsMediaPlayer1.Invoke(new Action(() =>
        {
            axWindowsMediaPlayer1.Visible = true;
            pictureBox1.Visible = false;

            #region 解决报错的方式你可以先不加这个你试试会不会报错
            ((System.ComponentModel.ISupportInitialize)(this.axWindowsMediaPlayer1)).BeginInit();//axWindowsMediaPlayer2为第三方控件名
            axWindowsMediaPlayer1.uiMode = "None"; //隐藏视频播放器布局状态栏
            this.Controls.Add(axWindowsMediaPlayer1);
            ((System.ComponentModel.ISupportInitialize)(this.axWindowsMediaPlayer1)).EndInit();
            #endregion
            this.axWindowsMediaPlayer1.URL = filePath;

            //1 的时候是关闭，结束了
            try
            {
                while (!((int)axWindowsMediaPlayer1.playState == 1))
                {
                    Delay(500);
                }
            }
            catch
            {

            }

        }));
    }
    else
    {
        axWindowsMediaPlayer1.Visible = true;
        pictureBox1.Visible = false;

        #region 解决报错的方式你可以先不加这个你试试会不会报错
        ((System.ComponentModel.ISupportInitialize)(this.axWindowsMediaPlayer1)).BeginInit();//axWindowsMediaPlayer2为第三方控件名
        axWindowsMediaPlayer1.uiMode = "None"; //隐藏视频播放器布局状态栏
        this.Controls.Add(axWindowsMediaPlayer1);
        ((System.ComponentModel.ISupportInitialize)(this.axWindowsMediaPlayer1)).EndInit();
        #endregion
        this.axWindowsMediaPlayer1.URL = filePath;
        //1 的时候是关闭，结束了
        while (!((int)axWindowsMediaPlayer1.playState == 1))
        {
            Delay(500);
        }

    }
}

六：隐藏标题栏后需要可拖拽缩放

可通过游标去实现我这边就不粘出来了