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WMScripter Property

Summary

Provides a way to get the WMScript object.

Syntax

C++/CLI

public WMScript WMScripter { get; }

public: 
property WMScript^ WMScripter { 
   WMScript^ get(); 
}

Property Value

A WMScript object, which can be used to manage the Windows Media Script commands.

Remarks

The object is read-only and can be null if the TargetFormat property is not set to TargetFormatType.WMVMux or TargetFormatType.ASFMux. You can keep a copy of the object but only as long as the target format does not change. If the target format changes, you should get the object again. For more information on Windows Media Script Commands, refer to WMScript object.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
public DateTime _startTime; 
CaptureCtrl _capturectrl; 
WMScript _mux; 
 
public void WriteScriptStreamExample() 
{ 
   _capturectrl = _form.CaptureCtrl; 
 
   // reference the capture control 
   string outFile = Path.Combine(LEAD_VARS.MediaDir, "WriteScriptStream_Dest.wmv"); 
 
   try 
   { 
      _capturectrl.TargetFormat = TargetFormatType.WMVMux; 
      _capturectrl.TargetFile = outFile; 
 
      // set an audio device, use the name of your device here 
      if (_capturectrl.VideoDevices["USB"] == null) 
         throw new Exception("No USB audio device available"); 
 
      _capturectrl.VideoDevices["USB"].Selected = true; 
 
      if (_capturectrl.IsModeAvailable(CaptureMode.Video)) 
      { 
         _capturectrl.FrameDelay = .033;  // 30 frames per second 
         _capturectrl.TimeLimit = 10;     // just 10 seconds of capture time 
         _capturectrl.UseTimeLimit = true; 
 
         // call ReadyCapture, so the target object is added 
         _capturectrl.ReadyCapture(CaptureMode.Video | CaptureMode.InhibitRun); 
 
         // get the scripter object 
         _mux = _capturectrl.WMScripter; 
         if (_mux == null) 
            return; 
 
         // enable the script stream 
         _mux.EnableScriptStream = true; 
 
         // subscribe to the complete event 
         _capturectrl.Complete += new EventHandler(CaptureCtrl_Complete); 
 
         // subscribe to the error abort event 
         _capturectrl.ErrorAbort += new ErrorAbortEventHandler(CaptureCtrl_ErrorAbort); 
 
         // set the start time 
         _startTime = DateTime.Now; 
 
         // set a timer so we can write the Script commands every second 
         _form.TestTimer.Interval = 1000; 
         _form.TestTimer.Tick += new EventHandler(TestTimer_Tick); 
         _form.TestTimer.Start(); 
 
         // start the capture process 
         _capturectrl.StartCapture(CaptureMode.Video); 
 
         // we'll loop on the state and pump messages for this example. 
         // but you should not need to if running from a Windows Forms application. 
         while (_capturectrl.State == CaptureState.Running) 
            Application.DoEvents(); 
      } 
   } 
   catch (Exception) 
   { 
      return; 
   } 
 
   // we'll loop on the state and pump messages for this example. 
   // but you should not need to if running from a Windows Forms application. 
   while (_capturectrl.State == CaptureState.Running) 
      Application.DoEvents(); 
 
   _result = true; 
} 
 
public void TestTimer_Tick(object sender, EventArgs e) 
{ 
   // stop the capture 
   try 
   { 
      double elapsedTime = (DateTime.Now - _startTime).TotalMilliseconds / 1000; 
      String sz = String.Format("Sample caption script at {0} seconds", elapsedTime); 
      _mux.WriteScriptStream("caption", sz, elapsedTime); 
   } 
   catch (Exception) 
   { 
      _result = false; 
      _capturectrl.StopCapture(); 
   } 
} 
 
public void CaptureCtrl_Complete(object sender, EventArgs e) 
{ 
   // set result 
   _result = true; 
   // the capture has finished, do not write scripts anymore 
   // Note that since the capture has finished automatically, I do not need to call _mux.CloseScriptStream() 
   _form.TestTimer.Stop(); 
} 
 
public void CaptureCtrl_ErrorAbort(object sender, ErrorAbortEventArgs e) 
{ 
   // set result 
   _result = false; 
   // the capture has finished, do not write scripts anymore 
   // Note that since the capture has finished automatically, I do not need to call _mux.CloseScriptStream() 
   _form.TestTimer.Stop(); 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
}

Requirements

Target Platforms

Reference

CaptureCtrl Class

CaptureCtrl Members

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Help Version 23.0.2024.2.29

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies