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Accessibility

Published on January 20, 2020 by David Parker

My sessions at MS Ignite the Tour 2020 London

I was pleased to present two sessions at London ExCel last week about Visio. Attendance was good, maybe too good because some could not get close enough to hear. There was a lot of background noise, and my presentations were too long for the 15 minutes slot, but content was eagerly received.

My Visio Power BI presentation …

I told everyone to download the slide decks, but I cannot find the link on the TechCommunity pages yet, so I have created my own links ….

[Read more…] about My sessions at MS Ignite the Tour 2020 London

Filed Under: Accessibility, MSIgnite, PowerBI, Uncategorized, Visio for Desktop, Visio for Web Tagged With: Accessibility, MSIgnite, PowerBI, Visio

Published on September 12, 2019 by David Parker

Visio Accessibility Guide and Webinar

Visio Accessibility image

I am pleased to announce that I have a guide to accessibility available to download from VisionUp and I will be presenting a webcast on the subject on 26th September 2019. Registration is now open at the following link :  Introducing Accessibility in Visio.

Filed Under: Accessibility, Ebooks, Visio, Visio Online, Webcasts Tagged With: Accessibility

Published on September 4, 2019 by David Parker

Testing Visio shape text for WCAG 2.0 pass

The Web Content Access Guidelines (WCAG) 2.0 provides the current recommendations for making web content accessible to users with vision impairment, but how do you test if your Visio shapes pass? There are several web sites out there that provide this capability, but all of them require the HEX values, rather than the RGB or HSL that Visio provides natively. Therefore, I have created a Visio callout shape that can be associated with a target shape to report on the values of each of its main color elements, and provides hyperlinks to automatically check the contrast ratio on WebAIM.

Color Values Shape


The colour formats that can be selected from either the Shape Data window or the right mouse menu are:

[Read more…] about Testing Visio shape text for WCAG 2.0 pass

Filed Under: Accessibility, Color, Shape Data, Visio, Visio Online Tagged With: Accessibility, Hyperlinks, Shape Data, WCAG

Published on July 5, 2019 by David Parker

Narrated Text in Visio for Accessibility

One of the ways that Visio supports accessibility is to provide text that is read out by a screen reader, such as Windows Narrator or JAWS. This Alt Text can be set using Format Shape / Size & Properties tab using the Title and Description text boxes. The Title is the initial text that is read out when a shape is attentioned, and the Description will only read out if the user pauses. The Description text box only allows 255 characters to be entered and displayed, but this is not actually the limit!

VisioAltText
[Read more…] about Narrated Text in Visio for Accessibility

Filed Under: Accessibility, Shape Data, ShapeSheet Formulas, Visio, Visio Online Tagged With: Accessibility, ShapeSheet

Published on July 5, 2019 by David Parker

Understanding Visio Navigation Order

Visio defaults to tabbing from shape to shape in the order that the shapes are added to the page. However, this can end up with an illogical order if you are trying to navigate a diagram with the keyboard, which is often an accessibility requirement. Fortunately, Visio provides a Diagram Navigation pane so that the tab order can be changed, but how does it do it? The following short video shows how the navigation order, displayed as numbers in each shape, is assigned a value as soon as the order is edited.



Accessibility is important in my current project, so understanding how this happens was important to understand, and to surface this order to JavaScript, as we want to list the shapes in a logical order too.
I managed this by adding a User.visNavOrder to the master shape of all the significant masters, and a hidden Shape Data row, labelled “Navigation Order“. This has the following formula for its value:

[Read more…] about Understanding Visio Navigation Order

Filed Under: Accessibility, ShapeSheet Formulas, SharePoint, Visio, Visio Online Tagged With: Accessibility, Shape Data, ShapeSheet

Published on May 20, 2019 by David Parker

Formatting SharePoint Columns with RGB Color

I wrote about ensuring high contrast between text and the background of Visio shapes in my last article. The RGB values actually came from an imported SharePoint list that has a lookup to a list that contains the RGB values of named colours. Having solved how to display the correct text colour for high contrast in Visio, I wanted to the same in a SharePoint column, but first I had to learn how to use the RGB values to format the background colour.

SharePointColumnColourFormat.png


My good friend Chris Roth, aka VisGuy, has already produced Visio ShapeSheet formulas to convert RGB values to Hex values. so I adaptively re-used his idea to create a formula that I could use in a SharePoint calculated column, called Hex.
First, I compressed his multiple User-defined Cells rows into a single formula:

[Read more…] about Formatting SharePoint Columns with RGB Color

Filed Under: Accessibility, Color, SharePoint, Visio Tagged With: ShapeSheet

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