Gets a VideoProcAmp object which enables the user to adjust the qualities of an incoming video signal.
public virtual VideoProcAmp VideoProcAmp { get; }
Public Overridable ReadOnly Property VideoProcAmp As VideoProcAmp
public:
virtual property VideoProcAmp^ VideoProcAmp {
VideoProcAmp^ get();
}
A VideoProcAmp object.
Gets a VideoProcAmp object which enables the user to adjust the qualities of an incoming video signal, such as brightness, contrast, hue, saturation, gamma, and sharpness.
using Leadtools;
using Leadtools.Multimedia;
using LeadtoolsMultimediaExamples.Fixtures;
public bool _result = false;
public CaptureCtrlForm _form = new CaptureCtrlForm();
public string _outFile = Path.Combine(LEAD_VARS.MediaDir, "VideoProcAmp_GetExample.avi");
public void GetExample()
{
// reference the capture control
CaptureCtrl capturectrl = _form.CaptureCtrl;
try
{
// select the first device with analog in it's name
// Replace "Analog" with your video capture device name
if (capturectrl.VideoDevices["Analog"] == null)
throw new Exception("No Analog video devices available!");
capturectrl.VideoDevices["Analog"].Selected = true;
// set a video compressor
capturectrl.VideoCompressors.Mpeg2.Selected = true;
// set the target file
capturectrl.TargetFile = _outFile;
// reference the video proc amp
VideoProcAmp videoprocamp = capturectrl.VideoProcAmp;
if (videoprocamp != null)
{
// set the auto brightness property
videoprocamp.AutoBrightness = true;
// set to black and white
videoprocamp.ColorEnable = false;
// enable backlight compensation, if available
videoprocamp.BacklightCompensation = true;
}
// check for video capture available
if (capturectrl.IsModeAvailable(CaptureMode.Video))
{
// capture 15 seconds of video
capturectrl.UseTimeLimit = true;
capturectrl.TimeLimit = 15;
// subscribe to the compete event
capturectrl.Complete += new EventHandler(CaptureCtrl_Complete);
// start the capture
capturectrl.StartCapture(CaptureMode.Video);
}
}
catch (Exception)
{
_result = false;
}
// we'll loop on the state and pump messages for this example.
// but you should not need to if running from a Windows Forms application.
while (capturectrl.State == CaptureState.Running)
Application.DoEvents();
}
void CaptureCtrl_Complete(object sender, EventArgs e)
{
// set the result to what we expect
_result = File.Exists(_outFile);
}
static class LEAD_VARS
{
public const string MediaDir = @"C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 20\Media";
}
Imports Leadtools
Imports Leadtools.Multimedia
Imports LeadtoolsMultimediaExamples.Fixtures
Public _result As Boolean = False
Public _form As CaptureCtrlForm = New CaptureCtrlForm()
Public _outFile As String = Path.Combine(LEAD_VARS.MediaDir, "VideoProcAmp_GetExample.avi")
Public Sub GetExample()
' reference the capture control
Dim capturectrl As CaptureCtrl = _form.CaptureCtrl
Try
' select the first device with analog in it's name
' Replace "Analog" with your video capture device name
If capturectrl.VideoDevices("Analog") Is Nothing Then
Throw New Exception("No Analog video devices available!")
End If
capturectrl.VideoDevices("Analog").Selected = True
' set a video compressor
capturectrl.VideoCompressors.Mpeg2.Selected = True
' set the target file
capturectrl.TargetFile = _outFile
' reference the video proc amp
Dim videoprocamp As VideoProcAmp = capturectrl.VideoProcAmp
If Not videoprocamp Is Nothing Then
' set the auto brightness property
videoprocamp.AutoBrightness = True
' set to black and white
videoprocamp.ColorEnable = False
' enable backlight compensation, if available
videoprocamp.BacklightCompensation = True
End If
' check for video capture available
If capturectrl.IsModeAvailable(CaptureMode.Video) Then
' capture 15 seconds of video
capturectrl.UseTimeLimit = True
capturectrl.TimeLimit = 15
' subscribe to the compete event
AddHandler capturectrl.Complete, AddressOf CaptureCtrl_Complete
' start the capture
capturectrl.StartCapture(CaptureMode.Video)
End If
Catch e1 As Exception
_result = False
End Try
' we'll loop on the state and pump messages for this example.
' but you should not need to if running from a Windows Forms application.
Do While capturectrl.State = CaptureState.Running
Application.DoEvents()
Loop
End Sub
Private Sub CaptureCtrl_Complete(ByVal sender As Object, ByVal e As EventArgs)
' set the result to what we expect
_result = File.Exists(_outFile)
End Sub
Public NotInheritable Class LEAD_VARS
Public Const MediaDir As String = "C:\Program Files (x86)\LEAD Technologies\LEADTOOLS 20\Media"
End Class
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document
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