ByteScout Screen Capturing SDK – VB.NET – Capture Screen Video and Add Time Stamp

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ByteScout Screen Capturing SDK – VB.NET – Capture Screen Video and Add Time Stamp

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ByteScout-Screen-Capturing-SDK-VB-NET-Capture-Screen-Video-and-Add-Time-Stamp.pdf

How to capture screen video and add time stamp in VB.NET with ByteScout Screen Capturing SDK

The tutorial shows how to capture screen video and add time stamp in VB.NET

Source code documentation samples provide quick and easy way to add a required functionality into your application. ByteScout Screen Capturing SDK can capture screen video and add time stamp. It can be used from VB.NET. ByteScout Screen Capturing SDK is the screen video recording SDK helps in quick implementation of screen video recording. WMV, AVI, WebM output options are available with adjustable quality, video size, framerate and video and audio codec. Includes special features like live multiple blacking out of selected areas, recording from web cam as main source and as overlay, optional watermarks for output video.

Fast application programming interfaces of ByteScout Screen Capturing SDK for VB.NET plus the instruction and the code below will help you quickly learn how to capture screen video and add time stamp. Follow the instructions from the scratch to work and copy the VB.NET code. Use of ByteScout Screen Capturing SDK in VB.NET is also explained in the documentation included along with the product.

You can download free trial version of ByteScout Screen Capturing SDK from our website to see and try many others source code samples for VB.NET.

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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.catScreen
	' output video filename
        capturer.OutputFileName = "EntireScreenCaptured.wmv" ' set output video filename to .WMV or .AVI file


        ' 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 the text overlay with autochanging time stamp macros to indicate playing time and current date time 
        capturer.OverlayingRedTextCaption = "Recording: {RUNNINGMIN}:{RUNNINGSEC}:{RUNNINGMSEC} on {CURRENTYEAR}-{CURRENTMONTH}-{CURRENTDAY} at {CURRENTHOUR}:{CURRENTMIN}:{CURRENTSEC}:{CURRENTMSEC}"


  	' 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 25 seconds...")

        ' wait for 25 seconds
        Thread.Sleep(25000)

        ' stop capturing and flush 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("EntireScreenCaptured.wmv")

    End Sub

End Module