Why does my GUI which uses an ActiveX control give errors and not display the ActiveX control when deployed?

I have created a GUI in MATLAB and placed an ActiveX control on it. The GUI runs in MATLAB and as a standalone application on my development machine. However, when I deploy this GUI on a target machine, I receive two errors.

I receive a popup dialog with the following message:

 Error using ==> actxcontrol

 Control creation failed. Invalid ProgID 'ARProgBarCtrl.ARProgressBar'

I also receive an error message in the command window:

 Warning: File 'hObject' not found.

 > In actxproxy at 47

   In hgload at 151

   In openfig at 78

   In gui_mainfcn>local_openfig at 234

   In gui_mainfcn at 118

   In freed at 40

I would like to prevent the errors and allow my control to work on the client machine.

Answer 1

[MathWorks Support Team]

The error occurs because the ActiveX control is not present and registered on the target machine.

To remedy this, follow these steps:

1) Locate the ActiveX control file/s and transfer them to the client computer. Or install the ActiveX control on the target machine.

2) Using a DOS command window, navigate to the directory where the OCX file for the ActiveX control was placed.

3) Register the control using the following command:

regsvr32 <myfile>.OCX

Where myfile is the name of your ActiveX control. A message should appear indicating success.

4) Run your GUI executable.

This same procedure would need to be repeated for any other ActiveX controls that are in the GUI.