DesktopTextControl.AllowSpellChecking

From Xojo Documentation

Property (As Boolean )
aDesktopTextControl.AllowSpellChecking = newBooleanValue
or
BooleanValue = aDesktopTextControl.AllowSpellChecking

New in 2021r3

Supported for all project types and targets.

If True, words that are believed to be misspelled are underlined.

Sample Code

This example is in the Initialized event of a TextArea:

Me.AllowSpellChecking = True