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  • C#利用微软DirectX做的视频播放器

    C#利用微软DirectX做的视频播放器
    2008-12-07 11:11
    using System;
    using System.Collections.Generic;
    using System.ComponentModel;
    using System.Data;
    using System.Drawing;
    using System.Text;
    using System.Windows.Forms;
    using Microsoft.DirectX.AudioVideoPlayback;
    namespace playVideoProject
    {
        public partial class Form1 : Form
        {
            private Video myvideo = null;
            public Form1()
            {
                InitializeComponent();
            }
            private void button1_Click(object sender, EventArgs e)
            {
                openFile.InitialDirectory=Application.StartupPath;//获取对话框显示时的初始目录
                if (openFile.ShowDialog() == DialogResult.OK)
                {
                    // 记录panel组件的大小
                    int height = panel1.Height;
                    int width = panel1.Width;
                    // 如果存在打开的Video文件,释放它
                    if (myvideo != null)
                    {
                        myvideo.Dispose();
                    }
                    // 打开一个新的Video文件
                    myvideo = new Video(openFile.FileName);
                    // 把Video文件分配给创建的Panel组件
                    myvideo.Owner = panel1;
                    // 以记录的panel组件的大小来重新定义
                    panel1.Width = width;
                    panel1.Height = height;
                    // 播放AVI文件的第一帧,主要是为了在panel中显示
                    myvideo.Play();
                    myvideo.Pause();
                }
                //确定窗体中的各按钮状态
                if (myvideo == null)
                {
                    button2.Enabled = false;
                    button3.Enabled = false;
                    button4.Enabled = false;
                }
                else
                {
                    button2.Enabled = true;
                    button3.Enabled = true;
                    button4.Enabled = true;
                }
            }
            private void button3_Click(object sender, EventArgs e)
            {
                if (myvideo != null)
                {
                    myvideo.Pause();
                }
            }
            private void button2_Click(object sender, EventArgs e)
            {
                if (myvideo != null)
                {
                    myvideo.Play();
                }
            }
            private void Form1_Load(object sender, EventArgs e)
            {
                if (myvideo == null)
                {
                    button2.Enabled = false;
                    button3.Enabled = false;
                    button4.Enabled = false;
                }
                else
                {
                    button2.Enabled = true;
                    button3.Enabled = true;
                    button4.Enabled = true;
                }
            }
            private void button4_Click(object sender, EventArgs e)
            {
                if (myvideo != null)
                {
                    myvideo.Stop();
                }
            }
            private void panel1_Paint(object sender, PaintEventArgs e)
            {
            }
        }
    }

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  • 原文地址:https://www.cnblogs.com/xianyin05/p/1447304.html
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