Sigma LBA-712, LBA-710, LBA-714PC, LBA-300, LBA-708, LBA-500PC manual Events, Auto Exposure, OnNewFrame

-1 The LBA-PC is not available

0OK

1LBA-PC is collecting frames of data

The Ultracal operation runs for unknown amount of time depending on the camera and the LBA- PC configuration. Poll the OperationComplete property or respond to the OnOperationComplete event to determine when the Ultracal operation is complete.

9.3.2.7Auto Exposure

This method is identical to clicking AutoExposure! on the LBA-PC. This method has no effect if a previous Auto Exposure operation is not complete.

If the LBA-PC is collecting frames of data the Auto Exposure cannot start. If there is any other problem, the Auto Exposure will not start and the LBA-PC will display an error message on the LBA-PC display.

This method returns the following:

-1 The LBA-PC is not available

0OK

1LBA-PC is collecting frames of data

The Auto Exposure operation runs for unknown amount of time depending on the camera and the LBA-PC configuration. Poll the OperationComplete property or respond to the OnOperationComplete event to determine when the Auto Exposure operation is complete.

9.3.3Events

All the events can fire each time the LBA-PC collects a new frame of data. If you are still processing an event when another frame is collected then the new event is not fired. This is especially true when using LabVIEW.

9.3.3.1OnNewFrame

This is a generic event fired each time the LBA-PC collects a new frame of data. You can read any desired property values while processing this event. During this event you are guaranteed all properties correspond to the same frame of data. After return from this event property values will change.

Please note, LBA-PC does not collect data when minimized and will not send OnNewFrame events while minimized.

During an event, LabVIEW records the event in a queue then returns. Below is a table of various ways to use this event.

LBA-PC

Capture Mode

HoldNewFrame

Discussion

Operator’s Manual	171	LBA-PC
Doc. No. 10654-001, Rev 4.10