vbavisiocreateobject

Creating an instance of Visio in vba when 2 versions are installed


I have the below code to create an instance of Visio from Excel. It works on machines where I have a single version of Visio installed, but on some machines I have 2 versions (2010 and 2016) installed. On these machines it fails to run with the error "Method 'Visible' of object 'IVApplication' failed". When I check AppVisio its empty, and I am guessing it is because both applications are visio.exe. Is there a way to create the object from a specific path, or any way to createobject when 2 versions are installed?

Set AppVisio = CreateObject("visio.application")
AppVisio.Visible = False
Set docsObj = AppVisio.Documents

Solution

  • There are some options I believe.

    Solution 1 (I would recommend this one). Install only Visio 2010 on your development machine (and uninstall 2016). It's safest to have the lowest version you want your app to run with on your dev machine anyways. Add a reference to Visio 2010's type library in Excel. Remove the reference to Visio 21016 type library. Visio versions are upward-compatible, so the code should run properly even on the machine with Visio 2016.

    Solution 2. Use late binding. Remove the reference to the Visio from your excel project altogether and use only script-like access. In this case, you will lose auto-completion though. If your app is not a big one, that should not be an issue.

    Solution 3. (if you want to run a specific version). You can start the Visio application from the program files (like any other executable), and then connect to it using "GetObject(...)" instead of "CreateObject(...)"

    BTW, there is a better way to run Visio as invisible app (without flashing):

    Set appVisio = CreateObject("Visio.InvisibleApp")