ICogAcqStrobeDelay.StrobeDelay Property

ICogAcqStrobeDelay StrobeDelay Property

Cognex VisionPro

Get or set strobe delay.

Namespace: Cognex.VisionPro
Assembly: Cognex.VisionPro.Core (in Cognex.VisionPro.Core.dll) Version: 65.1.0.0

Syntax

double StrobeDelay { get; set; }

double StrobeDelay { get; set; }

Property StrobeDelay As Double 
	Get 
	Set

Property StrobeDelay As Double 
	Get 
	Set

property double StrobeDelay {
	double get ();
	void set (double value);
}

property double StrobeDelay {
	double get ();
	void set (double value);
}

Property Value

Type: Double

Events

Event Type	Reason
ICogChangedEvent Changed	Fires when the strobe delay changes. The following state flag may be affected: SfStrobeDelay

Event Type

Reason

ICogChangedEvent Changed

Fires when the strobe delay changes.

The following state flag may be affected:

SfStrobeDelay

Remarks

Sets or gets the strobe delay in milliseconds. The strobe delay is the delay time between the shutter pulse and the strobe firing.

The strobe delay can be a negative value so that the strobe pulse fires before the shutter pulse. Negative values are useful when you are using slower strobes such as LED strobes.

To determine the delay time for Cognex CDC cameras, see How to Choose a CDC Shutter Mode.

Default Value: 0

Examples

C++

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using Cognex.VisionPro;

private CogFrameGrabbers myFrameGrabbers;
private ICogFrameGrabber myFrameGrabber;
private ICogAcqFifo myAcqFifo;

private void InitializeFifo()
{
    const string VIDEO_FORMAT = "Sony XC75 640x480";
    ICogAcqStrobeDelay strobeDelayParams;

    myFrameGrabbers = new CogFrameGrabbers();
    myFrameGrabber = myFrameGrabbers[0];
    myAcqFifo = myFrameGrabber.CreateAcqFifo(VIDEO_FORMAT, 
        Cognex.VisionPro.CogAcqFifoPixelFormatConstants.Format8Grey, 0, false);

    strobeDelayParams = myAcqFifo.OwnedStrobeDelayParams;
    if (strobeDelayParams != null)
        strobeDelayParams.StrobeDelay = 12;
}

using Cognex.VisionPro;

private CogFrameGrabbers myFrameGrabbers;
private ICogFrameGrabber myFrameGrabber;
private ICogAcqFifo myAcqFifo;

private void InitializeFifo()
{
    const string VIDEO_FORMAT = "Sony XC75 640x480";
    ICogAcqStrobeDelay strobeDelayParams;

    myFrameGrabbers = new CogFrameGrabbers();
    myFrameGrabber = myFrameGrabbers[0];
    myAcqFifo = myFrameGrabber.CreateAcqFifo(VIDEO_FORMAT, 
        Cognex.VisionPro.CogAcqFifoPixelFormatConstants.Format8Grey, 0, false);

    strobeDelayParams = myAcqFifo.OwnedStrobeDelayParams;
    if (strobeDelayParams != null)
        strobeDelayParams.StrobeDelay = 12;
}

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Imports Cognex.VisionPro

Private myFrameGrabbers As CogFrameGrabbers
Private myFrameGrabber As Cognex.VisionPro.ICogFrameGrabber
Private myAcqFifo As Cognex.VisionPro.ICogAcqFifo

Private Sub InitializeFifo()
    Const VIDEO_FORMAT = "Sony XC75 640x480"
    Dim strobeDelayParams As Cognex.VisionPro.ICogAcqStrobeDelay

    myFrameGrabbers = New CogFrameGrabbers
    myFrameGrabber = myFrameGrabbers.Item(0)
    myAcqFifo = myFrameGrabber.CreateAcqFifo(VIDEO_FORMAT, CogAcqFifoPixelFormatConstants.Format8Grey, 0, False)

    strobeDelayParams = myAcqFifo.OwnedStrobeDelayParams

    If Not strobeDelayParams Is Nothing Then
        strobeDelayParams.StrobeDelay = 12
    End If
End Sub

Imports Cognex.VisionPro

Private myFrameGrabbers As CogFrameGrabbers
Private myFrameGrabber As Cognex.VisionPro.ICogFrameGrabber
Private myAcqFifo As Cognex.VisionPro.ICogAcqFifo

Private Sub InitializeFifo()
    Const VIDEO_FORMAT = "Sony XC75 640x480"
    Dim strobeDelayParams As Cognex.VisionPro.ICogAcqStrobeDelay

    myFrameGrabbers = New CogFrameGrabbers
    myFrameGrabber = myFrameGrabbers.Item(0)
    myAcqFifo = myFrameGrabber.CreateAcqFifo(VIDEO_FORMAT, CogAcqFifoPixelFormatConstants.Format8Grey, 0, False)

    strobeDelayParams = myAcqFifo.OwnedStrobeDelayParams

    If Not strobeDelayParams Is Nothing Then
        strobeDelayParams.StrobeDelay = 12
    End If
End Sub