ByteScout Screen Capturing SDK - VB.NET - Capture From Given Region - ByteScout

ByteScout Screen Capturing SDK – VB.NET – Capture From Given Region

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ByteScout Screen Capturing SDK – VB.NET – Capture From Given Region


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.catRegion

‘ output video filename
capturer.OutputFileName = “GivenRegionCaptured.wmv” ‘ set output video filename to .WMV or .AVI file

‘ set coordinates of the region to capture video from
capturer.CaptureRectLeft = 50
capturer.CaptureRectTop = 50

capturer.CaptureRectWidth = 640
capturer.CaptureRectHeight = 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 width and height of output video
capturer.OutputWidth = 640
capturer.OutputHeight = 480

‘ 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

‘// 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

‘ stop capturing and flush WMV or AVI video file into the disk

‘ Release(Resources)
capturer = Nothing


‘ open the output video
End Sub

End Module


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