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How Can You Manage Input Field Content in Cincom Smalltalk?

Hidden Gems Screencast

The Hidden Gems screencast is a series of live coding examples created for passionate Cincom Smalltalk developers like you. These screencasts share valuable insight into the product and inform you about things you may not know about. To view the entire collection of Hidden Gem screencasts, check out our video library here.

In last month’s Hidden Gems screencast, we showed COVID-19 data visualization demo apps using the Next Generation User Interface (NGUI) in Cincom ObjectStudio. This screencast shows how to load and run the new COVID-19 data demo apps that demonstrate how to present data and use graphics in Cincom ObjectStudio NGUI.

In this month’s new screencast, Managing Input Field Content, we will demonstrate techniques on how to handle input-field contents using notifications and keyboardHook.  The examples will demonstrate two techniques for making the field contents all uppercase while also showing some best practices.

On the Hidden Gems videos, we often say “This is easy once you know how,” and using keyboardHook is a good example of this. This screencast is part of the Techniques Series that shows various techniques for accomplishing or solving different tasks using Cincom Smalltalk.

If you have questions, comments or ideas for other Smalltalk examples or suggestions for future Hidden Gems, please email the Cincom Smalltalk Product Team at