////////////
/// Get/Put WindowStyleEx
private void TestWindowStyleEx()
{
int hr;
WindowStyleEx wsx1, wsx2;
// Read the current WindowStyleEx
hr = m_ivw.get_WindowStyleEx(out wsx1);
Marshal.ThrowExceptionForHR(hr);
// Flip the Layered bit
wsx1 ^= WindowStyleEx.Layered;
// Write the changed style
hr = m_ivw.put_WindowStyleEx(wsx1);
Marshal.ThrowExceptionForHR(hr);
// Read the style
hr = m_ivw.get_WindowStyleEx(out wsx2);
Marshal.ThrowExceptionForHR(hr);
// Make sure the value we set is what we just read
Debug.Assert(wsx1 == wsx2, "Put/Get WindowStyleEx");
}
public override void Init()
{
if (!isPlaying)
{
string Filename = "";
float size = 0;
double Max = 0;
int volume = 0;
graph = new FilterGraph() as IFilterGraph;
media = graph as IMediaControl;
eventEx = media as IMediaEventEx;
igb = media as IGraphBuilder;
imp = igb as IMediaPosition;
master.form.Invoke((MethodInvoker)delegate()
{
Filename = master.form.M_Filename.Text;
media.RenderFile(Filename);
size = (float)master.form.M_PrevSize.Value;
master.form.M_PrevSize.Enabled = false;
imp.get_Duration(out Max);
master.form.M_Seek.Maximum = (int)(Max);
master.form.M_Seek.Value = 0;
volume = master.form.M_Volume.Value;
span = (uint)(1000000.0f / master.form.M_CollectFPS);
});
graph.FindFilterByName("Video Renderer", out render);
if (render != null)
{
window = render as IVideoWindow;
window.put_WindowStyle(
WindowStyle.Caption | WindowStyle.Child
);
window.put_WindowStyleEx(
WindowStyleEx.ToolWindow
);
window.put_Caption("ElectronicBoard - VideoPrev -");
int Width, Height, Left, Top;
window.get_Width(out Width);
window.get_Height(out Height);
window.get_Left(out Left);
window.get_Top(out Top);
renderSize.Width = (int)(Width * size);
renderSize.Height = (int)(Height * size);
Aspect = (float)renderSize.Height / (float)renderSize.Width;
window.SetWindowPosition(Left, Top, renderSize.Width, renderSize.Height);
eventEx = media as IMediaEventEx;
eventEx.SetNotifyWindow(master.form.Handle, WM_DirectShow, IntPtr.Zero);
media.Run();
foreach (Process p in Process.GetProcesses())
{
if (p.MainWindowTitle == "ElectronicBoard - VideoPrev -")
{
renderwindow = p.MainWindowHandle;
break;
}
}
isPlaying = true;
iba = media as IBasicAudio;
iba.put_Volume(volume);
//master.form.checkBox3_CheckedChanged(null, null);
master.Start();
}
}
}
public void ReloadName()
{
try
{
if (basefilter == null)
{
return;
}
FilterInfo fi;
basefilter.QueryFilterInfo(out fi);
name = fi.achName;
orgname = fi.achName;
IFileSourceFilter fsrc = basefilter as IFileSourceFilter;
if (fsrc != null && fsrc.GetCurFile(out srcfilename, null) == 0 && srcfilename != null && !name.Contains(srcfilename))
{
name += " " + srcfilename.Substring(srcfilename.LastIndexOf('\\') + 1);
}
IFileSinkFilter fdst = basefilter as IFileSinkFilter;
if (fdst != null && fdst.GetCurFile(out dstfilename, null) == 0 && dstfilename != null && !name.Contains(dstfilename))
{
name += " " + dstfilename.Substring(dstfilename.LastIndexOf('\\') + 1);
}
string dspname = filterProps.DisplayName;
if (dspname != null && dspname.Length > 0)
{
if (!dispnames.ContainsKey(orgname))
{
dispnames.Add(orgname, dspname);
}
}
else //have no display name
{
if (dispnames.TryGetValue(orgname, out dspname))
{
filterProps.DisplayName = dspname;
}
}
IVideoWindow vw = basefilter as IVideoWindow;
if (vw != null)
{
//string s;
//vw.get_Caption(out s);
string gname = Graph.Form.Text + ": " + name;// +": ";
vw.put_Caption(gname);
//vw.SetWindowForeground(OABool.False);
//vw.put_AutoShow(OABool.True);
//vw.put_Owner(Program.mainform.Handle); hangs
WindowStyleEx wex;
vw.get_WindowStyleEx(out wex);
vw.put_WindowStyleEx(wex | WindowStyleEx.Topmost);
}
}
catch (COMException e)
{
Graph.ShowCOMException(e, "Problem occured while examining filter " + Name);
}
catch (Exception e)
{
MessageBox.Show(e.Message, "Exception caught while examining filter " + Name);
}
}
private void loadVideo(String videoPath)
{
videoFilepath = videoPath;
videoFileName.Text = getDisplayVideoName();
if (graph != null)
{
graph = null;
}
if (mediaControl != null)
{
// Stop media playback
this.mediaControl.Stop();
mediaControl = null;
}
if (videoWindow != null)
{
videoWindow.put_Owner(IntPtr.Zero);
videoWindow = null;
}
if (mediaSeeking != null)
{
mediaSeeking = null;
}
if (basicAudio != null)
{
basicAudio = null;
}
GC.Collect();
/* if (mediaPosition != null)
{
mediaPosition = null;
}*/
graph = (IGraphBuilder)new FilterGraph();
mediaControl = (IMediaControl)graph;
//mediaPosition = (IMediaPosition)graph;
videoWindow = (IVideoWindow)graph;
mediaSeeking = (IMediaSeeking)graph;
basicAudio = (IBasicAudio)graph;
AviSplitter spliter = new AviSplitter();
graph.AddFilter((IBaseFilter)spliter, null);
graph.RenderFile(videoPath, null);
graph.SetDefaultSyncSource();
/*
* AMSeekingSeekingCapabilities cap = AMSeekingSeekingCapabilities.CanGetCurrentPos;
if (mediaSeeking.CheckCapabilities(ref cap) > 0)
{
this.consoleErreur.AppendText("Impossible de recuperer la position de la frame");
}
* */
videoWindow.put_Owner(videoPanel.Handle);
videoWindow.put_MessageDrain(videoPanel.Handle);
videoWindow.put_WindowStyle(WindowStyle.Child);
videoWindow.put_WindowStyleEx(WindowStyleEx.ControlParent);
videoWindow.put_Left(0);
videoWindow.put_Top(0);
videoWindow.put_Width(videoPanel.Width);
videoWindow.put_Height(videoPanel.Height);
//positionTrackbar.Enabled = true;
speedTrackBar.Enabled = true;
mediaSeeking.SetTimeFormat(TimeFormat.Frame);
double rate;
mediaSeeking.GetRate(out rate);
rateText.Text = rate.ToString();
speedTrackBar.Value = (int)(speedTrackBar.Maximum * rate / 2);
trackBar1.Value = trackBar1.Maximum / 2;
this.basicAudio.put_Volume(-5000 + 5000 * trackBar1.Value / trackBar1.Maximum);
//mediaPosition.put_Rate(0.5);
running = false;
frameChanged = false;
}