In This Topic ▼

IndexOf(string) Method

Summary

Returns the index of the first occurrence of a Device object whose name matches the given string.

Syntax

C++/CLI

public int IndexOf( 
   string name 
)

public: 
int IndexOf(  
   String^ name 
)

Parameters

name
A value representing the name of the Device to find.

Return Value

The zero-based index position of the Device item found, or -1 if not found.

Remarks

Returns the index of the first occurrence of a Device object whose name matches the given string.

Example

using Leadtools; 
using Leadtools.Multimedia; 
using LeadtoolsMultimediaExamples.Fixtures; 
 
 
public bool _result = false; 
public CaptureCtrlForm _form = new CaptureCtrlForm(); 
 
public void IndexContainsExample() 
{ 
   // reference the capture control 
   CaptureCtrl capturectrl = _form.CaptureCtrl; 
 
   try 
   { 
      // select a video device, use your device name here instead of USB 
      if (capturectrl.VideoDevices["USB"] == null) 
         throw new Exception("No USB video device available"); 
 
      capturectrl.VideoDevices["USB"].Selected = true; 
 
      // reference the video devices object 
      Devices devices = capturectrl.VideoDevices; 
 
      // check the index of a USB video device 
      int i = devices.IndexOf("USB"); 
 
      Device dev = null; 
      if (i > -1) 
         // access the input via the collection indexer 
         dev = devices[i]; 
 
      // check whether the collection contains this input  
      // (it should we just got it with IndexOf above) 
      if (devices.Contains(dev)) 
      { 
         // set the result to what we expect 
         _result = true; 
      } 
   } 
   catch (Exception) 
   { 
      _result = false; 
   } 
}

Requirements

Target Platforms

Reference

Devices Class

Devices Members

Overload List

Download our FREE evaluation

Help Version 23.0.2024.2.29

Leadtools.Multimedia Assembly

Introduction

Getting Started

Namespaces

Leadtools.Multimedia Namespace

Leadtools.Multimedia.Common Namespace

Assemblies