Автор: AndreyCh (11.08.2008 в 23:03)
When the user reaches the character limit of an edit control, the system sends the application a WM_COMMAND message containing an EN_MAXTEXT notification message. This notification message does not mean that memory has been exhausted, but that the limit for user-entered text has been reached; the user cannot enter any more text. To change this limit, an application must send the control a new EM_SETLIMITTEXT message with a higher limit.
Т.е. приложению направляется сообощение EN_MAXTEXT -