207 lines
9.0 KiB
HTML
207 lines
9.0 KiB
HTML
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<body lang=EN-US link=blue vlink=blue style='tab-interval:.5in'>
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<div class=Section1>
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<h2><span style='font-family:Verdana'>Audio GFX Filter Sample<o:p></o:p></span></h2>
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<p><span style='font-size:10.0pt;font-family:Arial;color:red'>[This is
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preliminary documentation and subject to change.]</span><span style='font-size:
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10.0pt;font-family:Verdana'><o:p></o:p></span></p>
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<h3><span style='font-family:Verdana'>SUMMARY<o:p></o:p></span></h3>
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<p><span style='font-size:10.0pt;font-family:Verdana'>This sample driver demonstrates
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the basics of writing an audio GFX filter. On Microsoft Windows XP, only <span
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class=SpellE>autoload</span> <span class=SpellE>GFXes</span> are allowed. That
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means that a GFX can only be applied to specific PnP IDs of USB audio devices.
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The sample GFX is therefore tied to the Microsoft DSS 80 USB speakers. You can
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modify the INF file and replace the PnP ID with the PnP ID of your USB audio
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device to load the GFX on your device.<o:p></o:p></span></p>
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<h3><span style='font-family:Verdana'>BUILDING THE SAMPLE<o:p></o:p></span></h3>
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<p><span style='font-size:10.0pt;font-family:Verdana'>To build this sample,
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enter the free or checked Windows XP build environment and run <b>build</b>
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from the parent directory, rather than this subdirectory. This will also
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compile the GFX property DLL which allows the user to change the properties of
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your GFX.<o:p></o:p></span></p>
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<p><span style='font-size:10.0pt;font-family:Verdana'>The INF file named <20><span
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class=SpellE>gfxswap.inf</span><EFBFBD> included in the parent directory can be used
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to install the sample driver together with the GFX property DLL after it has
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been built. Simply copy the INF and this binary and the GFX property sample
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binary to a floppy disk and right click the INF file and choose <20>Install<6C> on
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your test machine. Please also refer to the <20>readme.htm<74> file in the parent
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directory.<o:p></o:p></span></p>
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<p><span style='font-size:10.0pt;font-family:Verdana'>Once the driver has been
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installed with the INF, the driver may be updated by copying the binary into
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%SystemRoot%\System32\Drivers on the target machine and rebooting to test the
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new driver, provided that there are no INF changes.<o:p></o:p></span></p>
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<h3><span style='font-family:Verdana'>DRIVER ISSUES<o:p></o:p></span></h3>
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<h3><span style='font-size:10.0pt;mso-bidi-font-size:13.5pt;font-family:Verdana;
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font-weight:normal'>This sample only works with </span><span style='font-size:
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10.0pt;font-family:Verdana;font-weight:normal'>Microsoft<EFBFBD> Windows<77> XP (or
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higher)</span><span style='font-size:10.0pt;font-family:Verdana'> </span><span
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style='font-size:10.0pt;font-family:Verdana;font-weight:normal'>operating
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system.</span><span style='font-size:10.0pt;mso-bidi-font-size:13.5pt;
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font-family:Verdana;font-weight:normal'><o:p></o:p></span></h3>
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<h3><span lang=FR style='font-family:Verdana;mso-ansi-language:FR'>CODE TOUR<o:p></o:p></span></h3>
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<h4><span lang=FR style='font-family:Verdana;mso-ansi-language:FR'>File <span
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class=SpellE>Manifest</span><o:p></o:p></span></h4>
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<pre><u><span lang=FR style='mso-ansi-language:FR'>File<span style='mso-tab-count:
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2'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Description<o:p></o:p></span></u></pre><pre><span lang=FR
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style='mso-ansi-language:FR'><o:p> </o:p></span></pre><pre><span
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class=SpellE>common.h</span><span style='mso-tab-count:1'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Header file which includes all necessary header files.<o:p></o:p></pre><pre><span
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class=SpellE>debug.h</span><span style='mso-tab-count:2'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Defines debug output macros.<o:p></o:p></pre><pre><span
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class=SpellE>device.cpp</span><span style='mso-tab-count:1'><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Device entry point.<o:p></o:p></pre><pre><span
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class=SpellE>filter.cpp</span><span style='mso-tab-count:1'><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Defines the filter and implements all filter properties.<o:p></o:p></pre><pre><span
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class=SpellE>filter.h</span><span style='mso-tab-count:1'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Defines the filter object and the filter property handlers.<o:p></o:p></pre><pre><span
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class=SpellE>gfx.rc</span><span style='mso-tab-count:2'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Recourse file to build the filter.<o:p></o:p></pre><pre><span
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class=SpellE>Makefile</span><span style='mso-tab-count:1'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span><span
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class=SpellE>Makefile</span> <20><o:p></o:p></pre><pre><span class=SpellE>pin.cpp</span><span
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style='mso-tab-count:2'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Implements the pin dispatch handlers and properties.<o:p></o:p></pre><pre><span
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class=SpellE>pin.h</span><span style='mso-tab-count:2'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Defines the pin object and pin property handlers.<o:p></o:p></pre><pre>readme.htm<span
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style='mso-tab-count:1'><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>This file.<o:p></o:p></pre><pre>Sources<span
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style='mso-tab-count:1'> </span><span style='mso-tab-count:1'><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> </span>Needed for building the project.</pre>
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<p align=center style='margin:0in;margin-bottom:.0001pt;text-align:center;
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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
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style='font-size:10.0pt;font-family:"Courier New";mso-fareast-font-family:"Courier New"'><a
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href="#top"><span style='font-family:Verdana'>Top of page</span></a></span><span
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style='font-size:10.0pt;font-family:Verdana;mso-fareast-font-family:"Courier New";
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mso-bidi-font-family:"Courier New"'> <o:p></o:p></span></p>
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<pre><o:p> </o:p></pre>
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<p class=MsoNormal><o:p> </o:p></p>
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</table>
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<pre><o:p> </o:p></pre><pre><o:p> </o:p></pre>
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<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
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style='font-size:7.5pt;font-family:"MS Sans Serif";mso-fareast-font-family:
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"Courier New";mso-bidi-font-family:"Courier New"'><EFBFBD> Microsoft Corporation 1999</span><span
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style='font-size:10.0pt;font-family:Verdana;mso-fareast-font-family:"Courier New";
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mso-bidi-font-family:"Courier New"'> <o:p></o:p></span></p>
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</div>
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</body>
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</html>
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