> I am trying to use LabView as a control panel for the chemical process
> simulator ChemCAD. It can be controlled using VBA subroutines in other
> programs. I would appreciate any advice you have.
It probably has either a DLL or an automation interface. You should
be able to use either from LV. The Call Library Function node is what
you use to call into a general DLL, but first check to see if there
is a registered automation server. On the front panel, drop an OLE
or ActiveX refnum control. Popup and bring up the dialog to select
which server. Hopefully you can find the ChemCAD server. If so,
drop the Open and any property or invoke nodes that you need. There
are Excel examples that help show how this is done.
Greg McKaskle