delphi - "A call to an OS function failed" when loading Windows-1252 XML file -

edit:

the error indeed in handling; parseerror fails ans reveals real error; see follow-up question error.

old question:

somehow, code below generates exception when loading xml using msxml unit in delphi xe. fails on windows xp professional x86 sp3 using msxml6 , windows 7 ultimate x64 sp1 using msxml6.

procedure txmleoserrortestcase.test; var   xmldocument: ixmldomdocument3;   xmlfilename: string; begin   xmldocument := cofreethreadeddomdocument60.create();   xmlfilename :=  tpath.combine(tpath.getdirectoryname(paramstr(0)), '1-normal.xml');   if not xmldocument.load(xmlfilename)     raiselastoserror(); end; 

this error occurs during xmldocument.load method:

eoserror @  $00423b2d call os function failed 

i trimmed xml down xml found below.

this hex dump of xml file:

000000: 3c 3f 78 6d 6c 20 76 65  72 73 69 6f 6e 20 3d 20 <?xml version = 000010: 22 31 2e 30 22 20 65 6e  63 6f 64 69 6e 67 3d 22 "1.0" encoding=" 000020: 57 69 6e 64 6f 77 73 2d  31 32 35 32 22 3f 3e 3c windows-1252"?>< 000030: 52 4f 57 20 43 69 74 79  3d 22 e0 22 2f 3e 0d 0a row city="."/>.. 

this xml:

<?xml version = "1.0" encoding="windows-1252"?><row city="à"/> 

why error occur?

(the xml loads fine in .net , other environments not using msxml6).

--jeroen

as can see in sysutils.pas, error message 1 that's given when getlasterror returns zero. documentation ixmldomdocument.load not advise call getlasterror discover reason failure. last-error value thread default 0 value.

instead, inspect document object's parseerror value. give ixmldomparseerror object tells , why problem occurred.