Sigma LBA-400 Manuel D’Utilisation

Page de 281
Operator’s Manual 
 
LBA-PC 
 
Doc. No. 10654-001, Rev 4.10 
171
LBA-PC 
Capture Mode
HoldNewFrame Discussion 
-1 
The LBA-PC is not available 
0 OK 
LBA-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. 
 
9.3.2.7 Auto 
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 
0 OK 
LBA-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. 
 
9.3.3 Events 
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.   
 
9.3.3.1 OnNewFrame 
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.