How to record a region around the mouse on screen into AVI video using Bytescout Screen Capturing SDK

Screen recording of a region around the mouse ready-to-use code sample:

This sample code demonstrates how to use Screen Capturing SDK to record video from the dynamic region around the mouse. The region is defined by the width and height. This method works as a virtual camera that follows to the mouse cursor.

1) Visual Basic .NET

Create new VB.NET Console project in Visual Studio. Click Project | Add Reference.. and add the reference to Bytescout Screen Capturing Lib on the COM tab and click OK. Then use the code snippet below:

Imports System.Threading
Imports System.Diagnostics

Imports BytescoutScreenCapturingLib ' import bytescout screen capturer activex object

Module Module1

  Sub Main()
  ' create capturer class
    Dim capturer As New CapturerClass()
  ' set capturing area to the region type (to capture from given region on the screen)
    capturer.CapturingType = CaptureAreaType.catMouse
  ' output video filename
    capturer.OutputFileName = "RegionAroundMouseCaptured.avi"

    ' set width and height of the rectangle around the mouse to capture video from
    capturer.CaptureRectWidth = 320
    capturer.CaptureRectHeight = 240

  ' start capturing
    capturer.Run()

    ' wait for 15 seconds
    Thread.Sleep(15000)

  ' stop capturing and flush AVI video file into the disk
    capturer.Stop()

    ' open the output video
    Process.Start("RegionAroundMouseCaptured.avi")

  End Sub

End Module

2) Visual C# .NET

Create new C# Console project in Visual Studio. Click Project | Add Reference.. and add the reference to Bytescout Screen Capturing Lib on the COM tab and click OK. Then use the code snippet below:

using System;
using System.Collections.Generic;
using System.Text;
using System.Threading;
using System.Diagnostics;

using BytescoutScreenCapturingLib; // import bytescout screen capturing activex object

namespace SimpleCaptureCSharp
{
  class Program
  {
    static void Main(string[] args)
    {
      CapturerClass capturer = new CapturerClass(); // create new screen capturer object

      capturer.CapturingType = CaptureAreaType.catMouse; // set capturing area type to catScreen to capture whole screen

      capturer.OutputFileName = "EntireScreenCaptured.avi"; // set output video filename

    // set width and height of the region around the mouse
    capturer.CaptureRectWidth = 320
    capturer.CaptureRectHeight = 240

      // set output video width and height
      capturer.OutputWidth = 320;
      capturer.OutputHeight = 240;

      capturer.Run(); // run screen video capturing

      Thread.Sleep(15000); // wait for 15 seconds

      capturer.Stop(); // stop video capturing

      Process.Start("EntireScreenCaptured.avi");
    }
  }
}

3) Visual Basic 6 and VBScript (VBS)

' create video capturer activex object
Set capturer = CreateObject("BytescoutScreenCapturing.Capturer")

' set output video file name
capturer.OutputFileName = "RegionAroundMouseCaptured.avi"

' set capturing type to the caMouse =2 to capture the region around the mouse curosr. You can also set to caRegion = 0 (to record from the given rectangle on screen) or to caScreen = 3 (to capture entire screen)
capturer.CapturingType = 2

' set width of the rectangle to capture from
capturer.CaptureRectWidth = 320
' set height of the rectangle to capture from
capturer.CaptureRectHeight = 240

MsgBox "Script will record 320x240 region around the mouse cursor for 10 seconds. Output video will go to CaptureScreenVbs.avi"

' run video capturing
capturer.Run()

' wait for 10 seconds (10000 msec)
WScript.Sleep(10000)

' stop capturing
capturer.Stop()

' destroy Capturer object so the video will be saved into the disk
Set capturer = Nothing