实例介绍
【实例简介】
【实例截图】
【核心代码】
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using QuartzTypeLib;
namespace DirectShow
{
/// <summary>
/// Zusammendfassende Beschreibung f黵 Form1.
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.MainMenu mainMenu1;
private System.Windows.Forms.MenuItem menuItem1;
private System.Windows.Forms.MenuItem menuItem2;
private System.Windows.Forms.MenuItem menuItem3;
private System.Windows.Forms.MenuItem menuItem4;
private System.Windows.Forms.ToolBar toolBar1;
private System.Windows.Forms.ToolBarButton toolBarButton1;
private System.Windows.Forms.ToolBarButton toolBarButton2;
private System.Windows.Forms.ToolBarButton toolBarButton3;
private System.Windows.Forms.ImageList imageList1;
private System.Windows.Forms.StatusBar statusBar1;
private System.Windows.Forms.Panel panel1;
private System.Windows.Forms.Timer timer1;
private System.Windows.Forms.StatusBarPanel statusBarPanel1;
private System.Windows.Forms.StatusBarPanel statusBarPanel2;
private System.Windows.Forms.StatusBarPanel statusBarPanel3;
private System.ComponentModel.IContainer components;
private const int WM_APP = 0x8000;
private const int WM_GRAPHNOTIFY = WM_APP 1;
private const int EC_COMPLETE = 0x01;
private const int WS_CHILD = 0x40000000;
private const int WS_CLIPCHILDREN = 0x2000000;
private FilgraphManager m_objFilterGraph = null;
private IBasicAudio m_objBasicAudio = null;
private IVideoWindow m_objVideoWindow = null;
private IMediaEvent m_objMediaEvent = null;
private IMediaEventEx m_objMediaEventEx = null;
private IMediaPosition m_objMediaPosition = null;
private IMediaControl m_objMediaControl = null;
private System.Windows.Forms.MenuItem menuItem5;
enum MediaStatus { None, Stopped, Paused, Running };
private MediaStatus m_CurrentStatus = MediaStatus.None;
public Form1()
{
//
// Erforderlich f黵 die Windows Form-Designerunterst黷zung
//
InitializeComponent();
//
// TODO: F黦en Sie den Konstruktorcode nach dem Aufruf von InitializeComponent hinzu
//
UpdateStatusBar();
UpdateToolBar();
}
/// <summary>
/// Die verwendeten Ressourcen bereinigen.
/// </summary>
protected override void Dispose( bool disposing )
{
CleanUp();
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Erforderliche Methode f黵 die Designerunterst黷zung.
/// Der Inhalt der Methode darf nicht mit dem Code-Editor ge鋘dert werden.
/// </summary>
private void InitializeComponent()
{
this.components = new System.ComponentModel.Container();
System.ComponentModel.ComponentResourceManager resources = new System.ComponentModel.ComponentResourceManager(typeof(Form1));
this.mainMenu1 = new System.Windows.Forms.MainMenu(this.components);
this.menuItem1 = new System.Windows.Forms.MenuItem();
this.menuItem2 = new System.Windows.Forms.MenuItem();
this.menuItem3 = new System.Windows.Forms.MenuItem();
this.menuItem4 = new System.Windows.Forms.MenuItem();
this.menuItem5 = new System.Windows.Forms.MenuItem();
this.toolBar1 = new System.Windows.Forms.ToolBar();
this.toolBarButton1 = new System.Windows.Forms.ToolBarButton();
this.toolBarButton2 = new System.Windows.Forms.ToolBarButton();
this.toolBarButton3 = new System.Windows.Forms.ToolBarButton();
this.imageList1 = new System.Windows.Forms.ImageList(this.components);
this.statusBar1 = new System.Windows.Forms.StatusBar();
this.statusBarPanel1 = new System.Windows.Forms.StatusBarPanel();
this.statusBarPanel2 = new System.Windows.Forms.StatusBarPanel();
this.statusBarPanel3 = new System.Windows.Forms.StatusBarPanel();
this.panel1 = new System.Windows.Forms.Panel();
this.timer1 = new System.Windows.Forms.Timer(this.components);
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel1)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel2)).BeginInit();
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel3)).BeginInit();
this.SuspendLayout();
//
// mainMenu1
//
this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuItem1,
this.menuItem5});
//
// menuItem1
//
this.menuItem1.Index = 0;
this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
this.menuItem2,
this.menuItem3,
this.menuItem4});
this.menuItem1.Text = "&File";
//
// menuItem2
//
this.menuItem2.Index = 0;
this.menuItem2.Shortcut = System.Windows.Forms.Shortcut.CtrlO;
this.menuItem2.Text = "&Open...";
this.menuItem2.Click = new System.EventHandler(this.menuItem2_Click);
//
// menuItem3
//
this.menuItem3.Index = 1;
this.menuItem3.Text = "-";
//
// menuItem4
//
this.menuItem4.Index = 2;
this.menuItem4.Text = "E&xit";
this.menuItem4.Click = new System.EventHandler(this.menuItem4_Click);
//
// menuItem5
//
this.menuItem5.Index = 1;
this.menuItem5.Text = "&Info";
this.menuItem5.Click = new System.EventHandler(this.menuItem5_Click);
//
// toolBar1
//
this.toolBar1.Appearance = System.Windows.Forms.ToolBarAppearance.Flat;
this.toolBar1.Buttons.AddRange(new System.Windows.Forms.ToolBarButton[] {
this.toolBarButton1,
this.toolBarButton2,
this.toolBarButton3});
this.toolBar1.DropDownArrows = true;
this.toolBar1.ImageList = this.imageList1;
this.toolBar1.Location = new System.Drawing.Point(0, 0);
this.toolBar1.Name = "toolBar1";
this.toolBar1.ShowToolTips = true;
this.toolBar1.Size = new System.Drawing.Size(442, 28);
this.toolBar1.TabIndex = 0;
this.toolBar1.ButtonClick = new System.Windows.Forms.ToolBarButtonClickEventHandler(this.toolBar1_ButtonClick);
//
// toolBarButton1
//
this.toolBarButton1.Enabled = false;
this.toolBarButton1.ImageIndex = 0;
this.toolBarButton1.Name = "toolBarButton1";
//
// toolBarButton2
//
this.toolBarButton2.Enabled = false;
this.toolBarButton2.ImageIndex = 1;
this.toolBarButton2.Name = "toolBarButton2";
//
// toolBarButton3
//
this.toolBarButton3.Enabled = false;
this.toolBarButton3.ImageIndex = 2;
this.toolBarButton3.Name = "toolBarButton3";
//
// imageList1
//
this.imageList1.ImageStream = ((System.Windows.Forms.ImageListStreamer)(resources.GetObject("imageList1.ImageStream")));
this.imageList1.TransparentColor = System.Drawing.Color.Red;
this.imageList1.Images.SetKeyName(0, "");
this.imageList1.Images.SetKeyName(1, "");
this.imageList1.Images.SetKeyName(2, "");
//
// statusBar1
//
this.statusBar1.Location = new System.Drawing.Point(0, 423);
this.statusBar1.Name = "statusBar1";
this.statusBar1.Panels.AddRange(new System.Windows.Forms.StatusBarPanel[] {
this.statusBarPanel1,
this.statusBarPanel2,
this.statusBarPanel3});
this.statusBar1.ShowPanels = true;
this.statusBar1.Size = new System.Drawing.Size(442, 20);
this.statusBar1.TabIndex = 2;
//
// statusBarPanel1
//
this.statusBarPanel1.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Spring;
this.statusBarPanel1.BorderStyle = System.Windows.Forms.StatusBarPanelBorderStyle.None;
this.statusBarPanel1.Name = "statusBarPanel1";
this.statusBarPanel1.Text = "Ready";
this.statusBarPanel1.Width = 297;
//
// statusBarPanel2
//
this.statusBarPanel2.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
this.statusBarPanel2.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Contents;
this.statusBarPanel2.Name = "statusBarPanel2";
this.statusBarPanel2.Text = "00:00:00";
this.statusBarPanel2.Width = 64;
//
// statusBarPanel3
//
this.statusBarPanel3.Alignment = System.Windows.Forms.HorizontalAlignment.Center;
this.statusBarPanel3.AutoSize = System.Windows.Forms.StatusBarPanelAutoSize.Contents;
this.statusBarPanel3.Name = "statusBarPanel3";
this.statusBarPanel3.Text = "00:00:00";
this.statusBarPanel3.Width = 64;
//
// panel1
//
this.panel1.BackColor = System.Drawing.Color.Black;
this.panel1.BorderStyle = System.Windows.Forms.BorderStyle.Fixed3D;
this.panel1.Dock = System.Windows.Forms.DockStyle.Fill;
this.panel1.Location = new System.Drawing.Point(0, 28);
this.panel1.Name = "panel1";
this.panel1.Size = new System.Drawing.Size(442, 395);
this.panel1.TabIndex = 3;
//
// timer1
//
this.timer1.Enabled = true;
this.timer1.Tick = new System.EventHandler(this.timer1_Tick);
//
// Form1
//
this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
this.ClientSize = new System.Drawing.Size(442, 443);
this.Controls.Add(this.panel1);
this.Controls.Add(this.statusBar1);
this.Controls.Add(this.toolBar1);
this.Menu = this.mainMenu1;
this.Name = "Form1";
this.Text = "DirectShow";
this.SizeChanged = new System.EventHandler(this.Form1_SizeChanged);
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel1)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel2)).EndInit();
((System.ComponentModel.ISupportInitialize)(this.statusBarPanel3)).EndInit();
this.ResumeLayout(false);
this.PerformLayout();
}
#endregion
/// <summary>
/// Der Haupteinstiegspunkt f黵 die Anwendung.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new Form1());
}
private void menuItem2_Click(object sender, System.EventArgs e)
{
OpenFileDialog openFileDialog = new OpenFileDialog();
openFileDialog.Filter = "Media Files|*.mpg;*.avi;*.wma;*.mov;*.wav;*.mp2;*.mp3|All Files|*.*";
if (DialogResult.OK == openFileDialog.ShowDialog())
{
CleanUp();
m_objFilterGraph = new FilgraphManager();
m_objFilterGraph.RenderFile(openFileDialog.FileName);
m_objBasicAudio = m_objFilterGraph as IBasicAudio;
try
{
m_objVideoWindow = m_objFilterGraph as IVideoWindow;
m_objVideoWindow.Owner = (int) panel1.Handle;
m_objVideoWindow.WindowStyle = WS_CHILD | WS_CLIPCHILDREN;
m_objVideoWindow.SetWindowPosition(panel1.ClientRectangle.Left,
panel1.ClientRectangle.Top,
panel1.ClientRectangle.Width,
panel1.ClientRectangle.Height);
}
catch (Exception)
{
m_objVideoWindow = null;
}
m_objMediaEvent = m_objFilterGraph as IMediaEvent;
m_objMediaEventEx = m_objFilterGraph as IMediaEventEx;
m_objMediaEventEx.SetNotifyWindow((int) this.Handle,WM_GRAPHNOTIFY, 0);
m_objMediaPosition = m_objFilterGraph as IMediaPosition;
m_objMediaControl = m_objFilterGraph as IMediaControl;
this.Text = "DirectShow - [" openFileDialog.FileName "]";
m_objMediaControl.Run();
m_CurrentStatus = MediaStatus.Running;
UpdateStatusBar();
UpdateToolBar();
}
}
private void CleanUp()
{
if (m_objMediaControl != null)
m_objMediaControl.Stop();
m_CurrentStatus = MediaStatus.Stopped;
if (m_objMediaEventEx != null)
m_objMediaEventEx.SetNotifyWindow(0, 0, 0);
if (m_objVideoWindow != null)
{
m_objVideoWindow.Visible = 0;
m_objVideoWindow.Owner = 0;
}
if (m_objMediaControl != null) m_objMediaControl = null;
if (m_objMediaPosition != null) m_objMediaPosition = null;
if (m_objMediaEventEx != null) m_objMediaEventEx = null;
if (m_objMediaEvent != null) m_objMediaEvent = null;
if (m_objVideoWindow != null) m_objVideoWindow = null;
if (m_objBasicAudio != null) m_objBasicAudio = null;
if (m_objFilterGraph != null) m_objFilterGraph = null;
}
private void menuItem4_Click(object sender, System.EventArgs e)
{
this.Close();
}
private void Form1_SizeChanged(object sender, System.EventArgs e)
{
if (m_objVideoWindow != null)
{
m_objVideoWindow.SetWindowPosition(panel1.ClientRectangle.Left,
panel1.ClientRectangle.Top,
panel1.ClientRectangle.Width,
panel1.ClientRectangle.Height);
}
}
private void toolBar1_ButtonClick(object sender, System.Windows.Forms.ToolBarButtonClickEventArgs e)
{
switch(toolBar1.Buttons.IndexOf(e.Button))
{
case 0: m_objMediaControl.Run();
m_CurrentStatus = MediaStatus.Running;
break;
case 1: m_objMediaControl.Pause();
m_CurrentStatus = MediaStatus.Paused;
break;
case 2: m_objMediaControl.Stop();
m_objMediaPosition.CurrentPosition = 0;
m_CurrentStatus = MediaStatus.Stopped;
break;
}
UpdateStatusBar();
UpdateToolBar();
}
protected override void WndProc( ref Message m)
{
if (m.Msg == WM_GRAPHNOTIFY)
{
int lEventCode;
int lParam1, lParam2;
while (true)
{
try
{
m_objMediaEventEx.GetEvent(out lEventCode,
out lParam1,
out lParam2,
0);
m_objMediaEventEx.FreeEventParams(lEventCode, lParam1, lParam2);
if (lEventCode == EC_COMPLETE)
{
m_objMediaControl.Stop();
m_objMediaPosition.CurrentPosition = 0;
m_CurrentStatus = MediaStatus.Stopped;
UpdateStatusBar();
UpdateToolBar();
}
}
catch (Exception)
{
break;
}
}
}
base.WndProc(ref m);
}
private void timer1_Tick(object sender, System.EventArgs e)
{
if (m_CurrentStatus == MediaStatus.Running)
{
UpdateStatusBar();
}
}
private void UpdateStatusBar()
{
switch (m_CurrentStatus)
{
case MediaStatus.None : statusBarPanel1.Text = "Stopped"; break;
case MediaStatus.Paused : statusBarPanel1.Text = "Paused "; break;
case MediaStatus.Running: statusBarPanel1.Text = "Running"; break;
case MediaStatus.Stopped: statusBarPanel1.Text = "Stopped"; break;
}
if (m_objMediaPosition != null)
{
int s = (int) m_objMediaPosition.Duration;
int h = s / 3600;
int m = (s - (h * 3600)) / 60;
s = s - (h * 3600 m * 60);
statusBarPanel2.Text = String.Format("{0:D2}:{1:D2}:{2:D2}", h, m, s);
s = (int) m_objMediaPosition.CurrentPosition;
h = s / 3600;
m = (s - (h * 3600)) / 60;
s = s - (h * 3600 m * 60);
statusBarPanel3.Text = String.Format("{0:D2}:{1:D2}:{2:D2}", h, m, s);
}
else
{
statusBarPanel2.Text = "00:00:00";
statusBarPanel3.Text = "00:00:00";
}
}
private void UpdateToolBar()
{
switch (m_CurrentStatus)
{
case MediaStatus.None : toolBarButton1.Enabled = false;
toolBarButton2.Enabled = false;
toolBarButton3.Enabled = false;
break;
case MediaStatus.Paused : toolBarButton1.Enabled = true;
toolBarButton2.Enabled = false;
toolBarButton3.Enabled = true;
break;
case MediaStatus.Running: toolBarButton1.Enabled = false;
toolBarButton2.Enabled = true;
toolBarButton3.Enabled = true;
break;
case MediaStatus.Stopped: toolBarButton1.Enabled = true;
toolBarButton2.Enabled = false;
toolBarButton3.Enabled = false;
break;
}
}
private void menuItem5_Click(object sender, System.EventArgs e)
{
Form2 dlg = new Form2();
dlg.ShowDialog();
}
}
}
标签： DirectShow
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