TextEdit.AutomaticallyCheckSpelling

From Xojo Documentation

Property (As Boolean )
aTextEdit.AutomaticallyCheckSpelling = newBooleanValue
or
BooleanValue = aTextEdit.AutomaticallyCheckSpelling

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 Open event of a TextArea:

Me.AutomaticallyCheckSpelling = True