SingleLineEdit controls
The Password property specifies whether the control is a password field, in which characters the user types appear as asterisks (*). If Password is not enabled, the characters appear as the user types them.
To make the control a password field:
Select the Password check box on the General page of the control’s Properties view.
The Password property takes a boolean value.
The following example sets the SingleLineEdit to a password field so that characters typed in appear as asterisks.
sle_1.Password = TRUE