使用directx技术实现播放，需要引用系统的 c:/winnt/system32/quartz.dll
是从codeproject上看来的。前一阵看到有人需要这样的代码，所以贴出来共享一下。
using system;
using system.collections;
using system.componentmodel;
using system.drawing;
using system.data;
using system.windows.forms;
using quartztypelib;
namespace greystar.framework.toolkits
{
/// <summary>
/// frmtv 的摘要说明。
/// </summary>
public class frmtv : system.windows.forms.usercontrol
{
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.panel panel1;
private system.windows.forms.imagelist imagelist1;
private system.windows.forms.timer timer1;
private system.windows.forms.toolbarbutton toolbarbutton4;
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.statusbar statusbar1;
private system.windows.forms.statusbarpanel statusbarpanel1;
private system.windows.forms.statusbarpanel statusbarpanel2;
private system.windows.forms.statusbarpanel statusbarpanel3;
enum mediastatus { none, stopped, paused, running };
private mediastatus m_currentstatus = mediastatus.none;
public frmtv()
{
// 该调用是 windows.forms 窗体设计器所必需的。
initializecomponent();
// todo: 在 initializecomponent 调用后添加任何初始化
}
public frmtv(envdte._dte dte,string workpath)
{
initializecomponent();
this.mdte=dte;
this.mworkpath=workpath;
}
private _dte mdte=null;
public _dte dte
{
set
{
mdte=value;
}
get
{
return mdte;
}
}
//工作目录
private string mworkpath=null;
public string workpath
{
set
{
this.mworkpath=value;
}
}
/// <summary>
/// 清理所有正在使用的资源。
/// </summary>
protected override void dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.dispose();
}
}
base.dispose( disposing );
}
#region 组件设计器生成的代码
/// <summary>
/// 设计器支持所需的方法 - 不要使用代码编辑器
/// 修改此方法的内容。
/// </summary>
private void initializecomponent()
{
this.components = new system.componentmodel.container();
system.resources.resourcemanager resources = new system.resources.resourcemanager(typeof(frmtv));
this.toolbar1 = new system.windows.forms.toolbar();
this.toolbarbutton4 = new system.windows.forms.toolbarbutton();
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.panel1 = new system.windows.forms.panel();
this.timer1 = new system.windows.forms.timer(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();
((system.componentmodel.isupportinitialize)(this.statusbarpanel1)).begininit();
((system.componentmodel.isupportinitialize)(this.statusbarpanel2)).begininit();
((system.componentmodel.isupportinitialize)(this.statusbarpanel3)).begininit();
this.suspendlayout();
//
// toolbar1
//
this.toolbar1.appearance = system.windows.forms.toolbarappearance.flat;
this.toolbar1.buttons.addrange(new system.windows.forms.toolbarbutton[] {
this.toolbarbutton4,
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(288, 28);
this.toolbar1.tabindex = 0;
this.toolbar1.buttonclick += new system.windows.forms.toolbarbuttonclickeventhandler(this.toolbar1_buttonclick);
//
// toolbarbutton4
//
this.toolbarbutton4.imageindex = 3;
//
// toolbarbutton1
//
this.toolbarbutton1.enabled = false;
this.toolbarbutton1.imageindex = 0;
//
// toolbarbutton2
//
this.toolbarbutton2.enabled = false;
this.toolbarbutton2.imageindex = 1;
//
// toolbarbutton3
//
this.toolbarbutton3.enabled = false;
this.toolbarbutton3.imageindex = 2;
//
// imagelist1
//
this.imagelist1.colordepth = system.windows.forms.colordepth.depth24bit;
this.imagelist1.imagesize = new system.drawing.size(16, 16);
this.imagelist1.imagestream = ((system.windows.forms.imageliststreamer)(resources.getobject("imagelist1.imagestream")));
this.imagelist1.transparentcolor = system.drawing.color.red;
//
// 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(288, 252);
this.panel1.tabindex = 4;
//
// timer1
//
this.timer1.enabled = true;
this.timer1.tick += new system.eventhandler(this.timer1_tick);
//
// statusbar1
//
this.statusbar1.location = new system.drawing.point(0, 260);
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(288, 20);
this.statusbar1.tabindex = 5;
//
// statusbarpanel1
//
this.statusbarpanel1.autosize = system.windows.forms.statusbarpanelautosize.spring;
this.statusbarpanel1.borderstyle = system.windows.forms.statusbarpanelborderstyle.none;
this.statusbarpanel1.text = "准备";
this.statusbarpanel1.width = 144;
//
// statusbarpanel2
//
this.statusbarpanel2.alignment = system.windows.forms.horizontalalignment.center;
this.statusbarpanel2.autosize = system.windows.forms.statusbarpanelautosize.contents;
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.text = "00:00:00";
this.statusbarpanel3.width = 64;
//
// frmtv
//
this.backcolor = system.drawing.systemcolors.control;
this.controls.add(this.statusbar1);
this.controls.add(this.panel1);
this.controls.add(this.toolbar1);
this.name = "frmtv";
this.size = new system.drawing.size(288, 280);
this.sizechanged += new system.eventhandler(this.frmtv_sizechanged);
((system.componentmodel.isupportinitialize)(this.statusbarpanel1)).endinit();
((system.componentmodel.isupportinitialize)(this.statusbarpanel2)).endinit();
((system.componentmodel.isupportinitialize)(this.statusbarpanel3)).endinit();
this.resumelayout(false);
}
#endregion
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 toolbar1_buttonclick(object sender, system.windows.forms.toolbarbuttonclickeventargs e)
{
switch(toolbar1.buttons.indexof(e.button))
{
case 0:
{
#region 打开文件
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;
}
break;
#endregion
}
case 1:
{
m_objmediacontrol.run();
m_currentstatus = mediastatus.running;
break;
}
case 2:
{
m_objmediacontrol.pause();
m_currentstatus = mediastatus.paused;
break;
}
case 3:
{
m_objmediacontrol.stop();
m_objmediaposition.currentposition = 0;
m_currentstatus = mediastatus.stopped;
break;
}
}
updatestatusbar();
updatetoolbar();
}
private void frmtv_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 timer1_tick(object sender, system.eventargs e)
{
if (m_currentstatus == mediastatus.running)
{
updatestatusbar();
}
}
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 updatestatusbar()
{
switch (m_currentstatus)
{
case mediastatus.none : statusbarpanel1.text = "停止"; break;
case mediastatus.paused : statusbarpanel1.text = "暂停 "; break;
case mediastatus.running: statusbarpanel1.text = "播放"; break;
case mediastatus.stopped: statusbarpanel1.text = "停止"; 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;
}
}
}
}
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