CogIOMCB.GetLinePolarity Method (Int32)

CogIOMCB GetLinePolarity Method (Int32)

Cognex VisionPro

Get the polarity for the specified line on this device. With possible values of CogIOLinePolarity.LowToHigh or CogIOLinePolarity.HighToLow, this parameter is used by the Write(), SetValue(), and WriteSyncPulse() methods.

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

Syntax

C++

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public CogIOLinePolarity GetLinePolarity(
	int line
)

public CogIOLinePolarity GetLinePolarity(
	int line
)

Public Function GetLinePolarity ( 
	line As Integer
) As CogIOLinePolarity

Public Function GetLinePolarity ( 
	line As Integer
) As CogIOLinePolarity

public:
CogIOLinePolarity GetLinePolarity(
	int line
)

public:
CogIOLinePolarity GetLinePolarity(
	int line
)

Parameters

line: Type: System Int32
The line number. Must be in the range 0 to 23 inclusive.

Return Value

Type: CogIOLinePolarity
The polarity for the specified line on this device. May be either CogIOLinePolarity.LowToHigh or CogIOLinePolarity.HighToLow.

Exceptions

Exception	Condition
ObjectDisposedException	If this CogIOMCB object has already been disposed.
ArgumentOutOfRangeException	If the line argument is less than zero or greater than 23.