Why do I receive "??? Error: Catastrophic failure" when I try to drive SCAPS SAMLight using the ACTXSERVER function within MATLAB 7.2 (R2006a)?

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I want to drive the SCAPS SAMLight software from MATLAB. This laser scanner interface software is described on the SCAPS website listed below.
To install SAMLight software demo on my computer I follow these steps:
1. Download the executable:
2. Download the project in C :
3. Unzip and install the executable.
When I excecute the following code:
a = actxserver('SCAPS.ScSamlightClientCtrl');
liste = a.interfaces;
c = a.invoke('_DSamlight_client_ctrl_ocx');
c.get
c.invoke
state_of_sam = c.ScIsRunning()
I get the following result:
ERROR: ??? Error: Catastrophic failure

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 23 Jun 2021
Edited: MathWorks Support Team on 23 Jun 2021
Since the SCAPS.ScSamlightClientCtrl is an ActiveX control and not an ActiveX server,
you can access this program using ACTXCONTROL:
a = actxcontrol('SCAPS.ScSamlightClientCtrl');
liste = a.interfaces;
c = a.invoke('_DSamlight_client_ctrl_ocx');
c.get
c.invoke
state_of_sam = c.ScIsRunning()
For more information, refer to the SCAPS documentation.
  1 Comment
gao shengyu
gao shengyu on 23 Oct 2021
Hi, could you give some more details about how to control the SCAPS SAMLight software by MATLAB? Some docs or guidance. I think it would be helpful for me.

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