ByteScout Screen Capturing SDK – VB.NET – Record Screen Video from Region Around Mouse

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ByteScout Screen Capturing SDK – VB.NET – Record Screen Video from Region Around Mouse

printable version:
ByteScout-Screen-Capturing-SDK-VB-NET-Record-Screen-Video-from-Region-Around-Mouse.pdf

How to record screen video from region around mouse in VB.NET and ByteScout Screen Capturing SDK

The tutorial below will demonstrate how to record screen video from region around mouse in VB.NET

The documentation is designed to help you to implement the features on your side. What is ByteScout Screen Capturing SDK? It is the SDK for developers for quick implementation of screen video recording. The SDK records screen into video or into a series of screenshots. Can also record audio. Saves video into AVI,WMV and Google’s WebM. Output video quality, size, resolution or framerate can be adjusted easily. Provides additional tools for privacy features like blacking out on scren areas with sensitive information on screen right during recording. Supports web camera as input and can add instant text and images into video output. It can help you to record screen video from region around mouse in your VB.NET application.

This rich sample source code in VB.NET for ByteScout Screen Capturing SDK includes the number of functions and options you should do calling the API to record screen video from region around mouse. Follow the instructions from the scratch to work and copy the VB.NET code. Code testing will allow the function to be tested and work properly with your data.

Free trial version of ByteScout Screen Capturing SDK is available on our website. Documentation and source code samples are included.

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Module1.vb

      Imports System.Threading
Imports System.Diagnostics

Imports BytescoutScreenCapturingLib ' import bytescout screen capturer activex object

' NOTE: if you are getting error like "invalid image" related to loading the SDK's dll then 
' try to do the following:
' 1) remove the reference to the SDK by View - Solution Explorer
' then click on References, select Bytescout... reference name and right-click it and select Remove
' 2) To re-add click on the menu: Project - Add Reference
' 3) In "Add Reference" dialog switch to "COM" tab and find Bytescout...
' 4) Select it and click "Add" 
' 5) Recompile the application 
' Note: if you need to run on both x64 and x86 then please make sure you have set "Embed Interop Types" to True for this reference

Module Module1

    Sub Main()
	' create capturer class
        Dim capturer As New Capturer()
	' 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.wmv" ' set output video filename to .WMV or .AVI file

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

        ' set width and height of output video
        capturer.OutputWidth = 640
        capturer.OutputHeight = 480

	' // WMV and WEBM output use WMVVideoBitrate property to control output video bitrate
   	' // so try to increase it by x2 or x3 times if you think the output video are you are getting is laggy
	' capturer.WMVVideoBitrate = capturer.WMVVideoBitrate * 2


	' set border style
        capturer.CaptureAreaBorderType = CaptureAreaBorderType.cabtDashed
        
  	' uncomment to set Bytescout Lossless Video format output video compression method
	' do not forget to set file to .avi format if you use Video Codec Name
        ' capturer.CurrentVideoCodecName = "Bytescout Lossless"

	' uncomment to enable recording of semitransparent or layered windows (Warning: may cause mouse cursor flickering)
	' capturer.CaptureTransparentControls = true


	' start capturing
        capturer.Run()

	'// IMPORTANT: if you want to check for some code if need to stop the recording then make sure you are 
	'// using Thread.Sleep(1) inside the checking loop, so you have the loop like
	'// Do {
	'// Thread.Sleep(1) 
	'// }
	'// While(StopButtonNotClicked);


        Console.WriteLine("Capturing entire screen for 15 seconds...")

        ' wait for 15 seconds
        Thread.Sleep(15000)

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

        ' Release(Resources)
        System.Runtime.InteropServices.Marshal.ReleaseComObject(capturer)
        capturer = Nothing


        Console.WriteLine("Done")

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

    End Sub

End Module