It is not always necessary to create a new instance of a MATLAB® server
whenever your application needs some task done in MATLAB. Clients
can connect to an existing MATLAB Automation server using the
actxGetRunningServer function or by using
a command similar to the Visual Basic® .NET
The Visual Basic .NET command shown here returns a handle
the MATLAB server application:
h = GetObject(, "matlab.application")
Note: It is important to use the syntax shown above to connect to an existing MATLAB Automation server. Omit the first argument, and make sure the second argument is as shown.
The following Visual Basic .NET example connects to an existing MATLAB server, then executes a plot command in the server. If you do not already have a MATLAB server running, create one following the instructions in Accessing Methods from the Visual Basic Object Browser.
Dim h As Object h = GetObject(, "matlab.application") ' Handle h should be valid now. ' Test it by calling Execute. h.Execute ("plot([0 18], [7 23])")