http://bugs.winehq.org/show_bug.cgi?id=2199
Summary: Edit Undo operation does not behave same as MS Windows. Product: Wine Version: 20040408 Platform: PC OS/Version: Linux Status: UNCONFIRMED Severity: normal Priority: P2 Component: wine-gui AssignedTo: wine-bugs@winehq.org ReportedBy: krishna.murthy@guptaworldwide.com CC: krishna.murthy@guptaworldwide.com
The EM_UNDO message does not return TRUE always for single line edit controls as per the MSDN specification i.e., the EDIT_EM_Undo() method in file "wine/controls/edit.c" is not implemented correctly as per the MSDN spec for EM_UNDO.
As per MSDN spec: For a single-line edit control, the return value should be always TRUE. For a multiline edit control (with style ES_MULTILINE), the return value is TRUE if the undo operation is successful, or FALSE if the undo operation fails.
Due to the above issue, the applications generated from product Team Developer of Gupta Techologies LLC behave differently on MS windows and Wine.