MATLAB Central Newsreader - MATLAB as ActiveX object

MATLAB as ActiveX object

Aleksey Komarov — Tue, 02 Dec 2008 11:54:01 -0500

Please, help me to run some code in current MATLAB session, the following example on Visual Basic Script doesn't work:
Dim MatLab
Dim Result
Set MatLab = Getobject(,"Matlab.Application")
Result = MatLab.Execute("surf(peaks)")
Result = MatLab.Execute("a = [1 2 3 4; 5 6 7 8]")
Result = MatLab.Execute("b = a + a ")
msgbox Result

BUT the same code, which started new matlab kernel works fine:
....
Set MatLab = CreateObject("Matlab.Application")
Result = MatLab.Execute("surf(peaks)")
........

Please help!!!

Re: MATLAB as ActiveX object

Ben Hinchliffe — Wed, 03 Dec 2008 00:12:01 -0500

Hi Aleksey,
I saw this same problem while developing a product called Inference for MATLAB (enables users to execute MATLAB files/code in Word & Excel). We didn't push hard for a workaround, but if you need a simple way to access the MATLAB API you can use Inference and access it through Word or Excel. www.InferenceForMATLAB.com
Good luck!
-Ben

"Aleksey Komarov" <abkomarov@gmail.com> wrote in message <gh37kp$5l3$1@fred.mathworks.com>...
> Please, help me to run some code in current MATLAB session, the following example on Visual Basic Script doesn't work:
> Dim MatLab
> Dim Result
> Set MatLab = Getobject(,"Matlab.Application")
> Result = MatLab.Execute("surf(peaks)")
> Result = MatLab.Execute("a = [1 2 3 4; 5 6 7 8]")
> Result = MatLab.Execute("b = a + a ")
> msgbox Result
>
> BUT the same code, which started new matlab kernel works fine:
> ....
> Set MatLab = CreateObject("Matlab.Application")
> Result = MatLab.Execute("surf(peaks)")
> ........
>
> Please help!!!

Re: MATLAB as ActiveX object

rtServo — Sat, 06 Dec 2008 22:17:38 -0500

On Tue, 2 Dec 2008 11:54:01 +0000 (UTC), "Aleksey Komarov"
<abkomarov@gmail.com> wrote:

>Please, help me to run some code in current MATLAB session, the following example on Visual Basic Script doesn't work:
>Dim MatLab
>Dim Result
>Set MatLab = Getobject(,"Matlab.Application")
>Result = MatLab.Execute("surf(peaks)")
>Result = MatLab.Execute("a = [1 2 3 4; 5 6 7 8]")
>Result = MatLab.Execute("b = a + a ")
>msgbox Result
>
>BUT the same code, which started new matlab kernel works fine:
>....
>Set MatLab = CreateObject("Matlab.Application")
>Result = MatLab.Execute("surf(peaks)")
>........
>
>Please help!!!

What worked for me was first to start Matlab with the /automation
switch so that it acts as an ActiveX server. Then I used:

Set MatLab = GetObject("","Matlab.Application")

Note that if the Matlab object goes out of scope, Matlab will close.

-rt