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Using the CALLTHIS function in Visio

Visio was the first non-Microsoft application to include VBA within it back in the mid-nineties. All of the desktop Microsoft Office applications currently include VBA, although Microsoft have been rumoured to want to replace it for many years, and now there is an alternative scripting option becoming available that is suitable for the web too.

Visio was acquired by Microsoft in 2000, and there are still many scenarios when it is useful to have VBA procedures available in Visio for the Desktop. These procedures can be created using the recorder, and then edited, or just created manually. Every Visio document can contain a VBA project, but it must be saved with the .vsdm extension for documents, .vssm extension for stencils, or .vstm extension for templates. The last letter, m, informs Windows that this file could contain macros, as opposed to the normal last letter x, which cannot. Even with this extension, users, or their IT department, may not enable the macros in Visio documents.

The CALLTHIS function in Visio can be used to run a procedure (sub-function) in a Visio Visual Basic document and pass through a reference to the shape that the function is called from. The Microsoft Docs provide an explanation of this useful technique, and it does describe some examples, but it does not show the VBA code that these examples need, nor does it show them working. It also does not make it clear that these procedures do not need to be in the Visio diagram document, but can be in a stencil that is open in the active Visio session. This is important because it means that VBA code can be centralised and distributed for use use on many other documents.

  • Using CALLTHIS with code in a document
  • Using CALLTHIS with code in a stencil
  • The VBA code behind
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Referencing Visio Shapes

Every Visio shape must have a unique name in the collection that it belongs to, and to ensure this, Visio automatically one using the master name or just “Sheet”, if not an instance of a master, followed by a period (“.”) and the ID. However, a user can rename a shape, and Visio will then also update the universal name (NameU) to be the same as the Name. If a user chooses to re-name a shape a second time, then thee universal name is not updated … it remains as the original name.

To demonstrate this I drew a rectangle, then named, and re-named it:

  • Shape is automatically named
  • The Name and NameU are the same
  • The Name and NameU are initially the same
  • The Name U remains unchnaged when Name changed again
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Using Emojis in Visio

In the new normal of social distancing, we can easily miss the nuances of facial expressions with the the various electronic communication platforms that we utilise. In our personal communications via mobile apps, we have all started to use Emojis to express sentiment and actions, although we can sometimes convey the wrong meanings unintentionally as some Emojis get re-purposed by certain sections of society. Microsoft Windows 10 added native support for Emojis a year ago, and they can be inserted into many Microsoft applications using the onscreen keyboard 👀:

Windows 10 Onscreen Keyboard
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Visual Risks of a Global Pandemic

Back in the early noughties, I was part of a start-up company to to visualise the risks of any dependency system. We used Visio, of course, to map operational components and assets into a hierarchy of dependencies that simply displayed the roll-up of perceived risk. One of the demonstration diagrams that we (mainly Humphrey Tizard) constructed in 2003 was for a global pandemic. How prophetic that seems now!

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Multi-line text in Visio Shape Data

The Shape Data (nee Custom Properties) dialog and window only provides a single line to view or edit text values. It is a great shame because the value can be up to 64k characters, and long text can be pasted into it. I, and many others, have complained about this for many years to Microsoft, but nothing has been done to rectify this. Of course, I do develop custom user interface components for many customers, but that is not always desirable. Therefore I sometimes re-purpose standard Visio elements to provide the ability to view or edit multi-line text in Shape Data rows.

  • Description Shape Data row
  • Edit using ScreenTip or Action
  • Scrollable multi-line text
    Scrollable multi-line text
  • The first 248 characters are displayed on mouse hover
  • Simple ShapeSheet formulas to do this
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What makes Visio smart?

I have been running my Visio consultancy for over 20 years now, and I have created Visio solutions for many organisations, big and small, across many countries. Most of them know that Visio can do much more than they know how to do, but they do not know how it can be done. I usually do a short demo to explain where the smartness in Visio comes from, so I thought I would share a little bit of this knowledge with a couple of videos that, I think, show why Visio is so smart!

A Visio shape and ShapeSheet
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