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<p class=MsoNormal><span style='font-size:10.0pt;font-family:Verdana;
color:white'>&nbsp;<nobr><b>Windows Management Instrumentation SDK Sample</b></span>
<o:p></o:p></p>
</td>
</tr>
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<p class=MsoPlainText><br>
<strong><span style='font-size:13.5pt;font-family:Verdana'>ObjPathParser</span></strong><br
style='mso-special-character:line-break'>
<![if !supportLineBreakNewLine]><br style='mso-special-character:line-break'>
<![endif]></p>
<p class=MsoPlainText><span style='font-family:Verdana'>The ObjPathParser
sample contains code which parses CIM-style object paths.<span
style="mso-spacerun: yes"><EFBFBD> </span>Its primary use is in building providers,
when implementing GetObjectAsync().<span style="mso-spacerun: yes"><EFBFBD> </span>However,
it is generally useful when working with WMI in a variety of contexts.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'>The primary
illustration is in PATHTEST.CPP.<span style="mso-spacerun: yes"><EFBFBD> </span>The
main() function contains a complete example of how to parse an object path
using the C++ class CObjectPathParser.<span style="mso-spacerun: yes"><EFBFBD>
</span>The code of interest is:<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>ParsedObjectPath*
pOutput = 0;<o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>wchar_t
*pPath = L&quot;\\\\.\\root\\default:MyClass=\&quot;keyval\&quot;&quot;;<o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>CObjectPathParser
p;<o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>int
nStatus = p.Parse(pPath,<span style="mso-spacerun: yes"><EFBFBD> </span>&amp;pOutput);<o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>printf(&quot;Return
code is %d\n&quot;, nStatus);<o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'>if
(nStatus != 0)<o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.5in'><span style='font-family:Verdana'><span
style="mso-spacerun: yes"><EFBFBD><EFBFBD><EFBFBD> </span>return;<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'>The rest of the code
simply dumps the parsed output.<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'>The other files in the
project contain the sources for the lexer and the parser.<span
style="mso-spacerun: yes"><EFBFBD> </span>These files require no other supporting
files, and are not dependent on flex, yacc, or other similar tools.<span
style="mso-spacerun: yes"><EFBFBD> </span>The code is self-contained.<o:p></o:p></span></p>
<p class=MsoPlainText><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></p>
<p class=MsoPlainText><span style='font-size:12.0pt;mso-bidi-font-size:10.0pt;
font-family:Verdana'>Building the ObjPathParser Sample<o:p></o:p></span></p>
<p class=MsoPlainText>&nbsp;</p>
<p class=MsoPlainText><span style='font-family:Verdana'>The sample can be built
from the command line using NMAKE, or it can be built using Microsoft Visual
C++.<span yes>&nbsp; </span><o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'>&nbsp;<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'>From the command line
in the sample installation directory, type the following: <o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'>&nbsp;<o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.25in'><b><span style='font-family:
Verdana'>NMAKE /f &quot;Makefile&quot;<o:p></o:p></span></b></p>
<p class=MsoPlainText><span style='font-family:Verdana'>&nbsp;<o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'>From Microsoft Visual
C++: <o:p></o:p></span></p>
<p class=MsoPlainText><span style='font-family:Verdana'>&nbsp;<o:p></o:p></span></p>
<p class=MsoPlainText .5in list lfo2 level1 l0><span style='font-family:Verdana'>1.<span
Roman New Times></span></span><span style='font-size:7.0pt;font-family:Verdana'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span style='font-family:Verdana'>Select File + Open Workspace<o:p></o:p></span></p>
<p class=MsoPlainText .5in list lfo2 level1 l0><span style='font-family:Verdana'>2.<span
Roman New Times></span></span><span style='font-size:7.0pt;font-family:Verdana'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span><span style='font-family:Verdana'>Select the ObjPathParser.dsp file<o:p></o:p></span></p>
<p class=MsoPlainText><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></p>
<p class=MsoNormal style='tab-stops:list .5in'><strong><span style='font-family:
Verdana;font-weight:normal'>General Notes<o:p></o:p></span></strong></p>
<p class=MsoNormal style='tab-stops:list .5in'><strong><span style='font-family:
Verdana;font-weight:normal'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></strong></p>
<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'>Things
to remember when you're building your own WMI provider:<o:p></o:p></span></p>
<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>1.<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
"MS Mincho";mso-bidi-font-family:"Times New Roman"'>WMI interfaces are defined
in wbemcli.h and wbemprov.h found in the wmi\include directory.<span
style="mso-spacerun: yes"><EFBFBD> </span>You may #include both these files by
including just wbemidl.h located in the same directory.<o:p></o:p></span></p>
<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>2.<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
"MS Mincho";mso-bidi-font-family:"Times New Roman"'>WMI interface CLSIDs are
defined in wbemuuid.lib. If you get unresolved externals in interfaces and
CLSIDs, this is what is missing. <o:p></o:p></span></p>
<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>3.<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
"MS Mincho";mso-bidi-font-family:"Times New Roman"'>You'll need to link with
oleaut32.lib and ole32.lib to get the needed COM support.<o:p></o:p></span></p>
<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>4.<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
"MS Mincho";mso-bidi-font-family:"Times New Roman"'>In the Link|Output
settings, specify 'wWinMainCRTStartup' as the entry point. This is per the
Unicode programming instructions.<o:p></o:p></span></p>
<p class=MsoPlainText style='tab-stops:list .5in'><span style='font-family:
Verdana;mso-fareast-font-family:"MS Mincho";mso-bidi-font-family:"Times New Roman"'><![if !supportEmptyParas]>&nbsp;<![endif]><o:p></o:p></span></p>
<p class=MsoPlainText style='margin-left:.25in;text-indent:-.25in;mso-list:
l0 level1 lfo2;tab-stops:list .25in .5in'><![if !supportLists]><span
style='font-family:"Times New Roman";mso-fareast-font-family:"MS Mincho"'>5.<span
style='font:7.0pt "Times New Roman"'>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
</span></span><![endif]><span style='font-family:Verdana;mso-fareast-font-family:
"MS Mincho"'>If you're using the makefiles, don't forget to set the Visual C++
environment variables. This is done by running VCVARS32.BAT.<o:p></o:p></span></p>
<p class=MsoNormal style='tab-stops:list .5in'><br>
<span style='font-family:Arial'><a
href="http://www.microsoft.com/misc/CPYRIGHT.HTM"><b><EFBFBD> 1998-1999 Microsoft
Corporation. All rights reserved.</b></a></span></p>
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