delphi - Add File Summary tab data in runtime in NTFS in WinXP SP3 -

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i have given tryng figure out reason of issue, here story , hope give tip...

as develop unique app ( http://code.google.com/p/sedev ) , therefore need polish it.
have add file summary ( useful info in opinion ) created files app, decided go ntfs compatible structure edit: code snippet in problem occurs:

if (fileexists(baselocation + leftstr(getsswdata, length(getsswdata)               - 1) + '.vkp') = true) // add ntfs descriptive information output file         try           setfilesummaryinfo             (pwidechar(baselocation + leftstr(getsswdata, length                   (getsswdata) - 1) + '.vkp')); // in testcase files full path is: c:\documents , settings\kludge\desktop\sedevrpg\sedev_rpg_o_710.vkp           showmessagepos('patch created successfuly!' + #13#13 +               'please verify created data www.se-developers.net.',             paramstr2x, paramstr3y);           messagebeep(0);         except // exception handler not fire on exception ...           on exception           begin             if (warningchbx.checked = true)               showmessagepos                 ('unable add description output file (' +                   baselocation + leftstr(getsswdata, length(getsswdata)                     - 1) + '.vkp )', paramstr2x, paramstr3y);             messagebeep(0);           end;         end

final edit author: problem in setfilesummaryinfo(pwidechar('')) because after pwidechar conversion got character, not array of characters ( aka strings ) therefore not valid path anymore!

here main tutorial: http://www.delphipages.com/articles/setting_file_summary_information-9228.html
edit: better formatted tutorial here.

but, thing cannot damned filename param accept string ... have eolesyserror exception: "%1 cannot found" no matter what.

faulting operand is:

olecheck(stgopenstorageex(pwidechar(filename),  stgm_share_exclusive or stgm_readwrite,  stgfmt_any,  0, nil,  nil, @iid_ipropertysetstorage, stg));

what not understand why wants %1 msdos file name input.
not launching app cmd therefore highly doubt needs additional param file path ...

i have tried possible string , pstring conversions, tried various param passing methods ... not work ...

any appreciated!

i can reproduce case specifying invalid filename. make sure include full path in filename.


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