public override bool Initialize()
{
bool result = false;
try
{
Log.Info(" Visualization Manager: Initializing WMP visualization...");
RECT rect = new RECT();
rect.left = 0;
rect.top = 0;
rect.right = VisualizationWindow.Width;
rect.bottom = VisualizationWindow.Height;
OutputContextType outputType = VisualizationWindow.OutputContextType;
result = WMPInterop.InitWMPEngine(VizPluginInfo.CLSID, VizPluginInfo.PresetIndex, OutputContextType.WindowHandle,
IntPtr.Zero,
VisualizationWindow.Handle, ref rect);
_Initialized = result;
Log.Info(" Visualization Manager: WMP visualization initialization {0}", (result ? "succeeded." : "failed!"));
}
catch (Exception ex)
{
Console.WriteLine("CreateGForceVisualization failed with the following exception: {0}", ex);
Log.Error(
" Visualization Manager: WMP visualization engine initialization failed with the following exception {0}", ex);
return(false);
}
return(result);
}
public override int RenderVisualization()
{
if (VisualizationWindow.InvokeRequired)
{
ThreadSafeRenderDelegate d = new ThreadSafeRenderDelegate(RenderVisualization);
return((int)VisualizationWindow.Invoke(d));
}
RECT rect = new RECT();
rect.left = 0;
rect.top = 0;
rect.right = VisualizationWindow.Width;
rect.bottom = VisualizationWindow.Height;
TimedLvl.waveform = new byte[2048];
TimedLvl.frequency = new byte[2048];
TimedLvl.State = (int)WMPInterop.AudioState.Playing;
bool gotWaveData = GetWaveData(ref TimedLvl.waveform);
bool gotfreqData = GetFftData(ref TimedLvl.frequency);
IntPtr pTimedLevel = Marshal.AllocHGlobal(Marshal.SizeOf(typeof(WMPInterop.TimedLevel)));
Marshal.StructureToPtr(TimedLvl, pTimedLevel, false);
int result = 0;
result = WMPInterop.RenderWMP(pTimedLevel, ref rect);
Marshal.FreeHGlobal(pTimedLevel);
return(result);
}
public override bool SetOutputContext(OutputContextType outputType)
{
if (VisualizationWindow == null)
{
return(false);
}
// If width or height are 0 the call will fail. If width or height are 1 the window is in transition
if (VisualizationWindow.Width <= 1 || VisualizationWindow.Height <= 1)
{
return(false);
}
bool result = WMPInterop.SetOutputWMP(outputType, VisualizationWindow.Handle);
return(result);
}