HeaderScriptCount Property

Visual Basic
C#
WinRT C#
WinRT JavaScript
C++

public int HeaderScriptCount {get;}

'Declaration
 
Public ReadOnly Property HeaderScriptCount As Integer

'Usage
 
Dim instance As WMScript
Dim value As Integer
 
value = instance.HeaderScriptCount

public int HeaderScriptCount {get;}

 get_HeaderScriptCount();

public:
property int HeaderScriptCount {
   int get();
}

Property Value

An integer value that represents the total number of header scripts

You do not set the number of header scripts using this property. Instead, you use AddHeaderScript to add a header script and RemoveHeaderScript to remove a header script.

Visual Basic
C#
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

Public _result As Boolean = False
      Public _form As New ConvertCtrlForm()
      Public Sub AddHeaderScriptExample()
         Dim convertctrl As ConvertCtrl = _form.ConvertCtrl
         Dim inFile As String = Path.Combine(LEAD_VARS.MediaDir, "ConvertCtrl_Source.avi")
         Dim outFile As String = Path.Combine(LEAD_VARS.MediaDir, "WMScript_AddHeaderScriptExample.wmv")

         Try
            convertctrl.TargetFormat = TargetFormatType.WMVMux
            convertctrl.SourceFile = inFile
            convertctrl.TargetFile = outFile
            Dim mux As WMScript = convertctrl.WMScripter
            If mux Is Nothing Then
               _result = False
               Return
            End If

            mux.EnableScriptStream = False
            mux.RemoveAllHeaderScripts()

            WriteScript(convertctrl, mux)

            ' run the convert
            convertctrl.StartConvert()
         Catch generatedExceptionName As Exception
            _result = False
            Return
         End Try

         ' 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 convertctrl.State = ConvertState.Running
            Application.DoEvents()
         End While

         ' set the result
         _result = True
      End Sub

      Public Sub WriteScript(ByVal convertctrl As ConvertCtrl, ByVal mux As WMScript)
         Dim duration As Double = convertctrl.Duration

         Dim t As Double = 0.0
         While t < duration
            Dim sz As [String] = [String].Format("Sample caption script at {0} seconds", t)
            mux.AddHeaderScript("caption", sz, t)
            t += 1.0
         End While
      End Sub

Public NotInheritable Class LEAD_VARS
   Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
End Class

public bool _result = false;
      public ConvertCtrlForm _form = new ConvertCtrlForm();
      public void AddHeaderScriptExample()
      {
         ConvertCtrl convertctrl = _form.ConvertCtrl;
         string inFile = Path.Combine(LEAD_VARS.MediaDir,"ConvertCtrl_Source.avi");
         string outFile = Path.Combine(LEAD_VARS.MediaDir,"WMScript_AddHeaderScriptExample.wmv");

         try
         {
            convertctrl.TargetFormat = TargetFormatType.WMVMux;
            convertctrl.SourceFile = inFile;
            convertctrl.TargetFile = outFile;
            WMScript mux = convertctrl.WMScripter;
            if(mux == null)
            {
               _result = false;
               return;
            }

            mux.EnableScriptStream = false;
            mux.RemoveAllHeaderScripts();

            WriteScript(convertctrl, mux);

            // run the convert
            convertctrl.StartConvert();
         }
         catch (Exception)
         {
            _result = false;
            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 (convertctrl.State == ConvertState.Running)
             Application.DoEvents();

         // set the result
         _result = true;
      }

      public void WriteScript(ConvertCtrl convertctrl, WMScript mux)
      {
         double duration = convertctrl.Duration;

         for(double t = 0.0; t < duration; t += 1.0)
         {
            String sz = String.Format("Sample caption script at {0} seconds", t);
            mux.AddHeaderScript("caption", sz, t);
         }
      }

static class LEAD_VARS
{
   public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 175\Media";
}

Target Platforms: Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

Reference

WMScript Class
WMScript Members