Leaked source code of windows server 2003
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<div class=Section1>
<h1><a name=MYSAMPLE>Sample WIA Camera Driver</a></h1>
<h1><span style='font-size:14.0pt;mso-bidi-font-size:24.0pt;color:red'>[This ispreliminary documentation and subject to change.]<o:p></o:p></span></h1>
<h2>SUMMARY</h2>
<p>This sample shows how to write a Windows Image Acquisition (WIA) user-modeminidriver for a camera. It simulates a camera by reading images from a directoryon the hard disk. It also simulates events through a pop-up dialog. This sampledriver can be used as a starting point for your development, but your drivershould access the camera hardware through one of the kernel drivers providedwith Windows or by directly accessing the port, as with serial.</p>
<p>At the time of this writing, WIA is only supported on Windows Me andWhistler. This sample will not work on Windows 98 or Windows 2000.</p>
<h3>BUILDING THE SAMPLE</h3>
<p>To build the sample follow these steps:</p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;tab-stops:list .5in'><![if !supportLists]>1.<span style='font:7.0pt "Times New Roman"'> </span><![endif]>In the Start menu, select<span style="mso-spacerun:yes"> </span>"Free Build Environment" or "Checked BuildEnvironment" under "Windows DDK" to open a command window andset basic environment variables needed to build drivers. </p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;tab-stops:list .5in'><![if !supportLists]>2.<span style='font:7.0pt "Times New Roman"'> </span><![endif]>Change to the directory containing the sample driver sourcecode, src\wdm\wia\testcam.</p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;tab-stops:list .5in'><![if !supportLists]>3.<span style='font:7.0pt "Times New Roman"'> </span><![endif]>Execute the "build" command. After the buildcompletes, a driver named Testcam.dll will be located in an objectsubdirectory.</p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l0 level1 lfo2;tab-stops:list .5in'><![if !supportLists]>4.<span style='font:7.0pt "Times New Roman"'> </span><![endif]>Also build the user interface extension located in the src\wdm\wia\extenddirectory.</p>
<h3>USING THE SAMPLE<o:p></o:p></h3>
<p><! ---------------- Snip Snip ---------------- >To use the driver, firstinstall it following these steps: </p>
<ol start=1 type=1> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo5;tab-stops:list .5in'>Copy Testcam.dll from the appropriate object subdirectory under Testcam to a new, empty directory.</li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo5;tab-stops:list .5in'>Copy Testcam.inf to the same directory.</li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo5;tab-stops:list .5in'>Copy Extend.dll from the appropriate object subdirectory under Extend to the same directory.</li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo5;tab-stops:list .5in'>Copy Tcamlogo.jpg and Testcam.ico from the Extend directory to the same directory.</li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo5;tab-stops:list .5in'>In Windows Me or Whistler, open the “New Device” icon in the Scanners and Cameras control panel.</li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo5;tab-stops:list .5in'>Click the “Have Disk” button and enter the name of the folder created in step 1.</li> <li class=MsoNormal style='mso-margin-top-alt:auto;mso-margin-bottom-alt:auto; mso-list:l2 level1 lfo5;tab-stops:list .5in'>Click OK, Next, or Finish until the wizard is finished.</li></ol>
<p>Use one of these options to test this driver:</p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo7;tab-stops:list .5in'><![if !supportLists]>1.<span style='font:7.0pt "Times New Roman"'> </span><![endif]>The Scanners and Cameras Wizard accessible from the Startmenu.</p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo7;tab-stops:list .5in'><![if !supportLists]>2.<span style='font:7.0pt "Times New Roman"'> </span><![endif]>The Namespace extension accessible by opening the camera inExplorer.</p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo7;tab-stops:list .5in'><![if !supportLists]>3.<span style='font:7.0pt "Times New Roman"'> </span><![endif]>The Wiatest application provided in this DDK.</p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo7;tab-stops:list .5in'><![if !supportLists]>4.<span style='font:7.0pt "Times New Roman"'> </span><![endif]>Microsoft Paint, a native WIA application.</p>
<p style='margin-left:.5in;text-indent:-.25in;mso-list:l1 level1 lfo7;tab-stops:list .5in'><![if !supportLists]>5.<span style='font:7.0pt "Times New Roman"'> </span><![endif]>Any TWAIN compliant application.</p>
<h3>RESOURCES</h3>
<p>WIA information: <a href="http://www.microsoft.com/hwdev/wia">http://www.microsoft.com/hwdev/wia</a></p>
<p>DDK information: <a href="http://www.microsoft.com/ddk/">http://www.microsoft.com/ddk/</a></p>
<h3>CODE TOUR</h3>
<h3>File Manifest</h3>
<pre>Files<span style="mso-spacerun: yes"> </span>Description</pre><pre>------------ -------------------------------------------------------</pre><pre>camevent.cpp Implements events</pre><pre>camopen.cpp<span style="mso-spacerun: yes"> </span>Implements opening the camera object</pre><pre>camxfer.cpp<span style="mso-spacerun: yes"> </span>Implements transferring images</pre><pre>defprop.h<span style="mso-spacerun: yes"> </span>Property header file</pre><pre>device.cpp<span style="mso-spacerun: yes"> </span>Implements STI minidriver for backward compatibility</pre><pre>makefile<span style="mso-spacerun: yes"> </span>Used for building the driver--do not modify</pre><pre>miniitem.cpp Implements handling of items</pre><pre>resource.h<span style="mso-spacerun: yes"> </span>Header file for resources</pre><pre>sources<span style="mso-spacerun: yes"> </span>Controls building of driver</pre><pre>tcamprop.h<span style="mso-spacerun: yes"> </span>Camera properties</pre><pre>testcam.def<span style="mso-spacerun: yes"> </span>Linker command file</pre><pre>testcam.htm<span style="mso-spacerun: yes"> </span>This readme</pre><pre>testcam.inf<span style="mso-spacerun: yes"> </span>Installation file</pre><pre>testusd.cpp<span style="mso-spacerun: yes"> </span>Implements COM functionality</pre><pre>testusd.h<span style="mso-spacerun: yes"> </span>Main header file</pre><pre>testusd.rc<span style="mso-spacerun: yes"> </span>Resource definitions</pre><pre>version.h<span style="mso-spacerun: yes"> </span>Version defines</pre><pre>wiadev.cpp<span style="mso-spacerun: yes"> </span>WIA function implementations</pre>
<h3 style='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'>ProgrammingTour</h3>
<p style='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'>Tobe provided in a later release.<span style='font-family:"Courier New"'><o:p></o:p></span></p>
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