WebMessageDialogButton.Caption
From Xojo Documentation
Property (As String )
aWebMessageDialogButton.Caption = newStringValue
or
StringValue = aWebMessageDialogButton.Caption
New in 2020r1
Supported for all project types and targets.
or
StringValue = aWebMessageDialogButton.Caption
New in 2020r1
Supported for all project types and targets.
The text that appears on the button.
See Also
WebMessageDialog class.