TriggerPolarity

Description

Returns or sets the polarity of the hardware trigger input.


Syntax

[VB]
objActiveDcam.TriggerPolarity [= Value]

[C/C++]
HRESULT get_TriggerPolarity ( bool *pTriggerPolarity );
HRESULT put_TriggerPolarity( bool TriggerPolarity );


Data Type [VB]

Boolean


Parameters [C/C++]

pTriggerPolarity [out,retval]

Pointer to the Boolean that is TRUE if the high active trigger input, or FALSE otherwise

TriggerPolarity [in]

Set to TRUE to enable the high active trigger input, or set to FALSE for the low active input

Return Values

S_OK

Success

E_FAIL

Failure.

Example

This VB example sets the trigger input to the high active polarity:

ActiveDcam1.TriggerPolarity = True
MsgBox ActiveDcam1.TriggerPolarity

Remarks

When the trigger input is set to the low active polarity, the acquisition of the frame will occur upon a drop of the voltage on the trigger input. For the high active input, the acquisition will occur upon a raise of the voltage.