Output dialog Visio add-on that can display text when a shape is double-clicked, dropped on a page, or duplicated

There is no built-in ability for Visio to display a text dialog box when a shape is double-clicked or dropped on a page. Just install this addon, then run the file "test.vsd".
As can be seen not only can text be displayed but you can also show any value(s) from the shape's shapesheet.
Nor is this dialog limited to the double-click event, it can also work on shape drop. Open the shape's shapesheet editor and put the formula in the cell EventDrop instead of EventDblClick.
You can also perform multiple events, say you want to give some instructions before opening one of the standard Visio dialogs. If also want to open the Fill dialog then you could use:
=RUNADDONWARGS("outputdialog", "Your instructions") + DoCmd(1066)
or
=DoCmd(1066) + RUNADDONWARGS("outputdialog", "Your comments")
if you want to display your text afterwards.

To insert a new line in the text use the text '\r' within your text string.

Following a suggestion from a user here is another version, but this one uses a tool window. Install both!

Comments:

Displaying a web page within Visio

A question was asked recently on the SuperUser forum: https://superuser.com/questions/1378502/can-i-add-a-webpage-browser-to-a-visio-diagram about how to add a view of a web page from a Visio diagram.
There is no built-in method of doing this but I thought I might be able to modify my Output Dialog for Visio, and I have managed to get something working.
Just install this addon, then run the file "test web page output.vsd" which the installer adds tou your desktop so it is easy to find.
Double-click the shape and a web browser window will open at my website (www.paulherber.co.uk). The web browser is not as complete as others but displays my website just as any other browser would. The only exception that I know of so far is that it doesn't run javascript so it does throw up an error but just continue and the page shows correctly.
The browser window may be moved and resized as required.

JSD (Jackson Structured Design)
stencil, template and add-on
for Microsoft ® Visio ® 2000/2002/2003/2007/2010/2013/2016/2019/Visio for Office 365

The stencil The following menu is added to Visio.

Jackson Structured Design for Visio JSD for Visio consists of a stencil, template and add-on for Visio for the creation of all Jackson diagrams i.e. Specification, Implementation and Structure diagrams. A few shapes for Jackson design were provided in old versions of Visio Pro but they were incomplete and wrong. This software works with: Microsoft Visio 2000, 2002, 2003, 2007, 2010, 2013, 2016 and 2019 (any version, Standard, Professional or Premium). Download it now and try it Description File Version Date Size JSD for Visio (2000/2002) jsd_2000.zip 1.10.0.2 16th August 2020 740kB JSD for Visio (2003/2007/2010/2013/2016/2019) jsd.zip 1.11.0.0 16th August 2020 442kB After downloading, create a folder (typically "C:\Program Files (x86)\Visio stuff\JSD") and unzip the zip file into this folder. Copy the address of the folder that the software is installed to, start Visio and paste this path into the 'Add-ons path', 'Template path' and 'Stencils path' as follows: Visio 2000/2002/2003/2007: menu Tools -> Options -> Advanced -> File Paths Now restart Visio. JSD will be available from the File -> New menu Visio 2010/2013/2016/2019: ribbon File -> Options -> Advanced -> File Locations. Now restart Visio. JSD will be available from the File -> New menu I've decided to release the full source code for this project, you can download it below. You will need Delphi 6. There is no support provided for this software. JSD for Visio source code jsd-source.zip - 16th August 2020 1945kB Free This software is now free. No support is available for this software. Example Diagrams example structure diagram example specification diagram example implementation diagram