BklightComp Property

Description

Returns or sets the backlight compensation value available within the Source. This is a runtime property.

Data type

Long.

Syntax

ObjectName. BklightComp

Remarks

Using this property after calling OpenSource() method and before calling AcquireImage().

When an error occurs and IfThrowException property is TRUE, an exception will be thrown. Check ErrorCode property and ErrorString property for error information.

See also

BklightCompDefaultValue property, BklightCompMinValue property, BklightCompMaxValue property, BklightCompStepDelta property, IfAutoBklightComp property

Sample

A JavaScript sample is provided.

<script language="javascript">

	function btnManageBklightComp_onclick() {

            Webcam.OpenSource(); 

            BklightComp = Webcam.BklightComp;	//get the backlight compensation  value
            BklightCompMinValue = Webcam.BklightCompMinValue;//get the minimum backlight compensation value
            BklightCompMaxValue = Webcam.BklightCompMaxValue;//get the maximum backlight compensation value
            BklightCompDefaultValue = Webcam.BklightCompDefaultValue;//get the default backlight compensation value
            BklightCompStepDelta = Webcam.BklightCompStepDelta;//get the backlight compensation step delta
	
            Webcam.BklightComp = 1;//change the backlight compensation value to 1
            BklightComp = Webcam.BklightComp;	//get the backlight compensation value

	}

</script>