Capture From Entire Screen into WEBM Video - VB.NET
Screen Capturing SDK sample in VB.NET demonstrating ‘Capture From Entire Screen into WEBM Video’
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.webm" ' set output video filename to .WMV, .WEBM 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
' 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);
'// 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 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.webm")
End Sub
End Module
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Resources.Designer.vb
��'------------------------------------------------------------------------------
' <auto-generated>
' This code was generated by a tool.
' Runtime Version:2.0.50727.4918
'
' Changes to this file may cause incorrect behavior and will be lost if
' the code is regenerated.
' </auto-generated>
'------------------------------------------------------------------------------
Option Strict On
Option Explicit On
Namespace My.Resources
'This class was auto-generated by the StronglyTypedResourceBuilder
'class via a tool like ResGen or Visual Studio.
'To add or remove a member, edit your .ResX file then rerun ResGen
'with the /str option, or rebuild your VS project.
'<summary>
' A strongly-typed resource class, for looking up localized strings, etc.
'</summary>
<Global.System.CodeDom.Compiler.GeneratedCodeAttribute("System.Resources.Tools.StronglyTypedResourceBuilder", "2.0.0.0"), _
Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _
Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(), _
Global.Microsoft.VisualBasic.HideModuleNameAttribute()> _
Friend Module Resources
Private resourceMan As Global.System.Resources.ResourceManager
Private resourceCulture As Global.System.Globalization.CultureInfo
'<summary>
' Returns the cached ResourceManager instance used by this class.
'</summary>
<Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
Friend ReadOnly Property ResourceManager() As Global.System.Resources.ResourceManager
Get
If Object.ReferenceEquals(resourceMan, Nothing) Then
Dim temp As Global.System.Resources.ResourceManager = New Global.System.Resources.ResourceManager("SimpleCaptureVB.Resources", GetType(Resources).Assembly)
resourceMan = temp
End If
Return resourceMan
End Get
End Property
'<summary>
' Overrides the current thread's CurrentUICulture property for all
' resource lookups using this strongly typed resource class.
'</summary>
<Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
Friend Property Culture() As Global.System.Globalization.CultureInfo
Get
Return resourceCulture
End Get
Set(ByVal value As Global.System.Globalization.CultureInfo)
resourceCulture = value
End Set
End Property
End Module
End Namespace
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Settings.Designer.vb
��'------------------------------------------------------------------------------
' <auto-generated>
' This code was generated by a tool.
' Runtime Version:2.0.50727.4918
'
' Changes to this file may cause incorrect behavior and will be lost if
' the code is regenerated.
' </auto-generated>
'------------------------------------------------------------------------------
Option Strict On
Option Explicit On
Namespace My
<Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute(), _
Global.System.CodeDom.Compiler.GeneratedCodeAttribute("Microsoft.VisualStudio.Editors.SettingsDesigner.SettingsSingleFileGenerator", "8.0.0.0"), _
Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
Partial Friend NotInheritable Class MySettings
Inherits Global.System.Configuration.ApplicationSettingsBase
Private Shared defaultInstance As MySettings = CType(Global.System.Configuration.ApplicationSettingsBase.Synchronized(New MySettings), MySettings)
#Region "My.Settings Auto-Save Functionality"
#If _MyType = "WindowsForms" Then
Private Shared addedHandler As Boolean
Private Shared addedHandlerLockObject As New Object
<Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), Global.System.ComponentModel.EditorBrowsableAttribute(Global.System.ComponentModel.EditorBrowsableState.Advanced)> _
Private Shared Sub AutoSaveSettings(ByVal sender As Global.System.Object, ByVal e As Global.System.EventArgs)
If My.Application.SaveMySettingsOnExit Then
My.Settings.Save()
End If
End Sub
#End If
#End Region
Public Shared ReadOnly Property [Default]() As MySettings
Get
#If _MyType = "WindowsForms" Then
If Not addedHandler Then
SyncLock addedHandlerLockObject
If Not addedHandler Then
AddHandler My.Application.Shutdown, AddressOf AutoSaveSettings
addedHandler = True
End If
End SyncLock
End If
#End If
Return defaultInstance
End Get
End Property
End Class
End Namespace
Namespace My
<Global.Microsoft.VisualBasic.HideModuleNameAttribute(), _
Global.System.Diagnostics.DebuggerNonUserCodeAttribute(), _
Global.System.Runtime.CompilerServices.CompilerGeneratedAttribute()> _
Friend Module MySettingsProperty
<Global.System.ComponentModel.Design.HelpKeywordAttribute("My.Settings")> _
Friend ReadOnly Property Settings() As Global.SimpleCaptureVB.My.MySettings
Get
Return Global.SimpleCaptureVB.My.MySettings.Default
End Get
End Property
End Module
End Namespace
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