John Goldsmith's visLog

Creating an ISNUM function in Visio

Many languages include an IsNum / IsNumeric function to check an incoming string value, however this isn’t present in Visio’s ShapeSheet function set.  A recent project required this kind of check and I thought I’d jot down one way of creating a similar function in the ShapeSheet.

Using Bitwise functions in Visio (Part 2)

In the first part of this post about using bitwise functions in Visio, I looked at the theory of how these functions work.  In this part I’m going to put them to work to try and build a flexible shape.

Visio 2013 SDK

The new Visio 2013 software development kit is now available for download, and if you’ve not come across previous versions I thought I’d write a quick review of what’s inside.