MSDN писал(а):
Although it is not possible to change the alignment style of an edit control dynamically, the following techniques can be used to work around this restriction:
Create multiple edit controls, one for each style the application needs, and to switch between them as required.
Create a new edit control with the desired style as it is needed and switch to the new control.
Выходит, что нельзя динамически изменять выравнивание?