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param1 Field

Summary

Generic parameter one containing event-specific information. The use and possible values of the parameter depend on the MediaEventCode.

Syntax

C++/CLI

public long param1

public: 
int64 param1

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public PlayCtrlForm _form = new PlayCtrlForm(); 
 
public void HandleScriptExample() 
{ 
   PlayCtrl playctrl = _form.PlayCtrl; 
   string inFile = Path.Combine(LEAD_VARS.MediaDir, "WriteScriptStream_Dest.wmv"); 
 
   try 
   { 
      playctrl.MediaEvent += new MediaEventHandler(PlayCtrl_MediaEvent); 
 
      playctrl.SourceFile = inFile; 
   } 
   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 (playctrl.State == PlayState.Running) 
      Application.DoEvents(); 
} 
 
public void PlayCtrl_MediaEvent(object sender, MediaEventArgs e) 
{ 
   if (e.eventCode == MediaEventCode.EC_OLE_EVENT) 
   { 
      string nameString = System.Runtime.InteropServices.Marshal.PtrToStringBSTR(new IntPtr(e.param1)); 
      string commandString = System.Runtime.InteropServices.Marshal.PtrToStringBSTR(new IntPtr(e.param2)); 
      Console.WriteLine("EC_OLE_EVENT: name={0}, command={1}", nameString, commandString); 
      _result = true; 
   } 
} 
 
static class LEAD_VARS 
{ 
   public const string MediaDir = @"C:\LEADTOOLS23\Media"; 
}

Requirements

Target Platforms

Reference

MediaEventArgs Class

MediaEventArgs 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