[Bug 794] New: - WINPROC_UnmapMsg32ATo32W returns incorrect value for WM_GETTEXTLENGTH

http://bugs.winehq.com/show_bug.cgi?id=794

Summary: WINPROC_UnmapMsg32ATo32W returns incorrect value for
                    WM_GETTEXTLENGTH
           Product: Wine
           Version: CVS
          Platform: All
        OS/Version: All
            Status: NEW
          Severity: normal
          Priority: P2
         Component: wine-gui
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]

When unmapping WM_GETTEXTLENGTH, the result is quite simply doubled to account
for cases where an MBCS character will take two bytes. This yeilds incorrect
results most of the time.

We need to do either one of:
A. Make sure this unmapping is unnecessary (almost always a result of internal
A->W conversions).
or
B. Perform internal messaging to find out what the number should really be.

The problem is that at the time of processing the WM_GETTEXTLENGTH, the function
has no way of actually knowing the real length, as it doesn't have the actual
string.

DO NOT REPLY TO THIS EMAIL, BUT PLEASE POST YOUR BUG 
RELATED COMMENTS THROUGH THE WEB INTERFACE AVAILABLE AT
http://bugs.winehq.com/show_bug.cgi?id=794.
ANY REPLY MADE TO THIS MESSAGE WILL NOT BE COLLECTED AND 
INSERTED IN THE BUG DATABASE.