第一步：dll引用

Microsoft.DirectX.dll

Microsoft.DirectX.AudioVideoPlayback.dll

如果没有的话，，可能需要安装微软的DRECTX JDK

directx支持的视频文件格式： (*.avi; *.mov; *.mpg; *.mpeg; *.ts; *.wmv; *.vob; *.dat; *.rm; *.rmvb; *.flv)|*.avi; *.mov; *.mpg; *.mpeg; *.ts; *.wmv; *.vob; *.dat; *.rm; *.rmvb; *.flv";

第二步：开发代码

ourVideo = new Video(fileName);//视频文件路径 ourVideo.Ending += new EventHandler(ourVideo_Ending);//注册视频播放完成事件 ourVideo.Owner = this.picPlayWindow;//指定播放媒介pictureBox ourVideo.Play(); duration = ourVideo.Duration;

private Video ourVideo = null;

ourVideo.Stop();

ourVideo.Dispose();

ourVideo.Fullscreen = true;

第三步：设定屏幕拉伸和宽高比

这个的设定是，通过设定pictureBox的大小和位置实现的。

if (common.isFullScreen == true) { this.picPlayWindow.Width = players1.Width - 2; this.picPlayWindow.Height = players1.Height - 2; this.picPlayWindow.Location = new Point(2, 2); this.picPlayWindow.Visible = true; } else { Size ds = ourVideo.DefaultSize; this.picPlayWindow.Width = players1.Width - 2; this.picPlayWindow.Height = players1.Width * ds.Height / ds.Width; int x = 2; int y = players1.Height / 2 - this.picPlayWindow.Height / 2; this.picPlayWindow.Location = new Point(x, y); this.picPlayWindow.Visible = true; }