Discussion Forum

Hello:
I need to create a link from comsol to matlab, which is not problem, but also need to connect to the running matlab application so that a third program can access it through a visual basic program automatically and repetitively run in a command line.

Attached is a docx version of a test VB program (apparently .txt and .vb files are not allowed?). In the first section I open matlab using CreateObject("Matlab.Desktop.Application") and then reaccess this using GetObject("Matlab.Desktop.Application"). This works fine. As expected it changes directory and runs the simple test.m file that creates two variables and which are listed in the matlab. All is wonderful. Note that using both CreateObject and GetObject in the same file is silly but ultimately these two will be in separate VB files.

In the second part, the comsolserver and matlab are successfully created and present in the task manager but all attempts to link to the matlab process fail. Example errors are pasted at the end of the program. In my understanding, GetActiveObject() is supposed to detect running processes that are not currently ActiveX or COM objects and connect to them retuning a handle. GetObject() apparently requires an existing ActiveX/COM object.

Any thoughts on this matter would be greatly appreciated. Perhaps this is a case of trying to sew wings on a pig but I hope not.

Peter

I am using windows 7, matlab R2011b, comsol42, MS visual studio 2010, Visual basic 2010