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<title>ADDITIONAL INFORMATION TO THE SAMPLE The private property is
exposed as a filter property</title>
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<div class=Section1>
<h2><span style='font-family:Verdana'>GFX Property Sample<o:p></o:p></span></h2>
<p><span style='font-size:10.0pt;font-family:Arial;color:red'>[This is
preliminary documentation and subject to change.]</span><span style='font-size:
10.0pt;font-family:Verdana'><o:p></o:p></span></p>
<h3><span style='font-family:Verdana'>SUMMARY<o:p></o:p></span></h3>
<p><span style='font-size:10.0pt;font-family:Verdana'>This sample demonstrates
the basics of writing a GFX property page and can be used as a base to write
your own GFX property dialog. The sample only works together with the audio GFX
filter sample which is tied to the Microsoft DSS 80 USB speakers. You can apply
the sample to different USB speakers, however, you need to modify the INF file
and replace the PnP ID of the Microsoft DSS 80 USB speakers with the PnP ID of
your USB speakers.<o:p></o:p></span></p>
<p><span style='font-size:10.0pt;font-family:Verdana'>After you install the
audio GFX filter together with this sample, the property dialog will appear
when you open the <20>Advanced Audio Properties<65> and click on the <20>properties<65>
button for the USB speakers in the <20>Effects<74> tab. In this dialog you basically can
enable or disable the <span class=SpellE>GFXSwap</span> functionality.<o:p></o:p></span></p>
<h3><span style='font-family:Verdana'>BUILDING THE SAMPLE<o:p></o:p></span></h3>
<p><span style='font-size:10.0pt;font-family:Verdana'>To build this sample,
enter the free or checked Windows XP build environment and run <b>build</b>
from the parent directory, rather than this subdirectory. This would also
compile the audio GFX filter sample that is needed for this sample to work.<o:p></o:p></span></p>
<p><span style='font-size:10.0pt;font-family:Verdana'>The INF named <20><span
class=SpellE>gfxswap.inf</span><3E>, which is included in the parent directory,
can be used to install the sample after it has been built. Simply copy the INF
and this sample binary and the GFX filter binary to a floppy disk and right
click the INF file and choose <20>Install<6C> on your test machine. Please also refer
to the <20>readme.htm<74> file in the parent directory.<o:p></o:p></span></p>
<p><span style='font-size:10.0pt;font-family:Verdana'>Once the sample set has
been installed with the INF, the binary may be updated by copying the new binary
into %SystemRoot%\System32 on the target machine, provided that there are no
INF changes.<o:p></o:p></span></p>
<h3><span style='font-family:Verdana'>SAMPLE ISSUES<o:p></o:p></span></h3>
<h3><span style='font-size:10.0pt;mso-bidi-font-size:13.5pt;font-family:Verdana;
font-weight:normal'>This sample only works with </span><span style='font-size:
10.0pt;font-family:Verdana;font-weight:normal'>Microsoft<66> Windows<77> XP (or
higher)</span><span style='font-size:10.0pt;font-family:Verdana'> </span><span
style='font-size:10.0pt;font-family:Verdana;font-weight:normal'>operating
system.</span><span style='font-size:10.0pt;mso-bidi-font-size:13.5pt;
font-family:Verdana;font-weight:normal'><o:p></o:p></span></h3>
<p><b><span style='font-size:13.5pt;mso-bidi-font-size:12.0pt;font-family:Verdana'>ADDITIONAL
INFORMATION TO THE SAMPLE<o:p></o:p></span></b></p>
<p><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Verdana'>The
GFX Property sample communicates with the GFX filter through a property. This
property is sent to the only node that the GFX filter has. Since the node is
new (specific to the GFX filter sample), the property is new (private) too.<o:p></o:p></span></p>
<h3><span lang=FR style='font-family:Verdana;mso-ansi-language:FR'>CODE TOUR<o:p></o:p></span></h3>
<p><span style='font-size:10.0pt;mso-bidi-font-size:12.0pt;font-family:Verdana'>The
project was generated using the ATL wizard of Microsoft Visual C++ 6.0. The
project workspace file still exists, so you can open the project with Microsoft
Visual C++ 6.0 (or later). If you want to create your own project it is
probably a good idea to use the wizard and create a new project instead of
renaming this project and modifying it. If you choose the latter, please make
sure you read the documents in the parent directory about GUID dependencies.<o:p></o:p></span></p>
<p align=center style='margin:0in;margin-bottom:.0001pt;text-align:center;
tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:10.0pt;font-family:Verdana;mso-fareast-font-family:"Courier New";
mso-bidi-font-family:"Courier New"'><o:p> </o:p></span></p>
<pre><o:p> </o:p></pre>
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<pre><o:p> </o:p></pre><pre><o:p> </o:p></pre>
<p style='margin:0in;margin-bottom:.0001pt;tab-stops:45.8pt 91.6pt 137.4pt 183.2pt 229.0pt 274.8pt 320.6pt 366.4pt 412.2pt 458.0pt 503.8pt 549.6pt 595.4pt 641.2pt 687.0pt 732.8pt'><span
style='font-size:7.5pt;font-family:"MS Sans Serif";mso-fareast-font-family:
"Courier New";mso-bidi-font-family:"Courier New"'><3E> Microsoft Corporation 1999</span><span
style='font-size:10.0pt;font-family:Verdana;mso-fareast-font-family:"Courier New";
mso-bidi-font-family:"Courier New"'> <o:p></o:p></span></p>
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