Code

Detect Sub-selected Shapes Programmatically

May 17, 2008 By Visio Guy 14 Comments

A coding problem that Visio developers often stumble upon recently reared its ugly head yet again in the newsgroups. The question, very simply, was:

How do you programmatically detect sub-selected shapes?

The usual place to start is with a simple line of code, like:

Visio.ActiveWindow.Selection

But as it turns out, this line surprisingly does not return sub-selected shapes. So let’s dig deeper into the problem so that you can get your projects finished!

Understanding Arc-Resize Problems in Visio

April 28, 2008 By Visio Guy 9 Comments

If you’ve ever drawn arcs in Visio, then grouped them together with other shapes, you may have noticed that they behave rather oddly on resizing. As you make the group bigger or smaller, the arcs may bow or squish in ways that you didn’t expect.

This problem arises because of the interaction style of the arc shapes, which is 1D. Visio has two interaction styles: 1D and 2D. They have to do with the green handles you see on the shape, and how you go about manipulating the shape with the mouse.

In this article, we’ll describe the difference between the two interaction styles, and explain how to correct resizing problems you might be encountering.

Connect All Shapes to Each Other

March 17, 2008 By Visio Guy 22 Comments

If you’re a developer, looking to create Visio-based solutions, then you’re going to need to programmatically connect Visio shapes together. Wouldn’t be nice to have a snippet or two to start from?

Today’s post shows you VB and C# code that instructs Visio to connect every shape to every other shape, and to create a beautiful mess, like that shown in the image at left.

Edit Visio Masters Programmatically…the Right Way!

February 25, 2008 By Visio Guy 51 Comments

If you are busy developing a Visio solution, you might run into the situation where you need to edit a Visio master using code.

Like any application that has survived the ages, Visio has its share black-magic techniques that lurk in dusky corners of the netherworld. And if you need to edit masters programmatically, be warned! You’re heading down a dark alley…

If you’ve already run into problems with this, don’t feel bad. Even experienced Visio developers get tripped-up by this one! And that’s because the correct way to do this isn’t obvious, and the obvious way to do it isn’t correct!

Circular Text Generator (version 2)

January 5, 2008 By Visio Guy 63 Comments

Getting text on a circle in Visio was always a pain until the Circular Text Generator (version 1) appeared on Visio Guy. V1 was evidently a big hit, but you wanted more! Version 2 adds some more control over text spacing and placement on the circle. So if you need to place Visio text on a circle, read on!

Text to the Bottom of the Shape

November 7, 2007 By Visio Guy 5 Comments

A Visio newsgrouper recently pointed out that in Visio, inserted images have a different default text position than normal shapes. For images, the text is located at the bottom of the shape, and text “grows” downward.

This makes sense, since you usually don’t want the text to obscure the image. But perhaps you shape developers out there in Internet Land might wish to have the same text behavior for your shapes!

In this article, we’ll discuss how to do it by hand, and offer some VBA script to get the job done faster!

LengthIU Bug Workaround Code

October 20, 2007 By Visio Guy 10 Comments

Visio 2003 has a defect in the LengthIU property of a Shape object. This article discusses the bug, describes a work-around, and offers Visual Basic code to help you get back on track!

Circular Text Generator (version 1)

October 18, 2007 By Visio Guy 36 Comments

OK, we’ve just about had enough! Between all the newsgroup posts, and John Marshall’s nagging, it’s time to do something about adding text to a circle in Visio. ‘Til now, the standard response has been; “insert a Word Art object”. But with Visio’s SmartShape- and automation capabilities that just won’t do! We ought to be able to build something cool–and more native to Visio. This article presents the first in a series of the Circular Text Generator! [Read more…] about Circular Text Generator (version 1)

Customized Visio HTML Export

August 24, 2007 By Visio Guy 10 Comments

A recent Visio newsgroup post asked about customizing the output files from Visio’s Save As Web feature. This rang a bell in the ol’ noggin, and I went searching for an old demo that exported a customized html page, with pop-up menus that displayed Custom Property (Shape Data) information.

Sales Force Automation With Visio

June 3, 2007 By Visio Guy 20 Comments

One of the areas in which Visio particularly shines is that of Sales Force Automation. With Visio, a rep can sit on-site with a customer, and visually spec out a system or an installation. The components in the Visio schematic can be linked to real product-data, and can be analyzed via code to generate bills-of-material and reports automatically.

On MSDN, I recently uncovered “oldie but goody” demo that shows off these capabilities. I created it for Visio 5.0, while I still worked for Visio Corp, and it still works with Visio 2003! The demo illustrates how a fictitious candy-manufacturing line might be laid out. Custom shapes represent general classes of equipment, and database links behind the shapes specify real-world items. With the click of a button, a Bill of Materials, is generated in an embedded Excel spreadsheet, sitting right on the page!