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<title>如何在 Windows 中改变缺省打印机 </title>
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<div align="center" class="btitle">如何在 Windows 中改变缺省打印机 <br>
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<div align="center"><strong>CoDelphi.com </strong></div>
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摘 要</b>：如何能在 Windows 中改变缺省打印机？ <br>
<b> 关键字</b>：缺省 打印机 Windows <br>
<b> 类 别</b>：API
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<span class="content"> 如果你想要改变Windows的缺省打印机,你必须在Windows的WIN.INI中改变设备键。<Br> <Br> 发送一条 WM_WININICHANGE 消息：<Br><Br>var<Br> strIni: array[0..MAX_PATH] of Char;<Br> arrWindows: array[0..64] of Char;<Br>begin<Br> GetWindowsDirectory(strIni, SizeOf(strIni));<Br> StrCat(strIni, '\win.ini');<Br> with TIniFile.Create(strIni) do<Br> try<Br> WriteString('windows', 'device', 'HP LaserJet 4 Plus,HPPCL5MS,LPT1:');<Br> finally<Br> Free;<Br> end;<Br><Br> StrCopy(arrWindows, 'windows');<Br> SendMessage(HWND_BROADCAST, WM_WININICHANGE, 0, LongInt(@arrWindows));<Br>end;<Br><Br></span>
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