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<title>交换鼠标的左右键 </title>
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<div align="center" class="btitle">交换鼠标的左右键 <br>
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<div align="center"><strong>CoDelphi.com </strong></div>
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摘 要</b>：交换鼠标的左右键 <br>
<b> 关键字</b>：鼠标 交换 左键 <br>
<b> 类 别</b>：API
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<span class="content"> 为了改变鼠标左键，需要调用API函数SwapMouseButton。这样可以不用通知控制面板而改变鼠标左键。我们需要修改注册表。以下代码表明，先读注册表，决定鼠标左键开关的当前值，并通过写注册表运行SwapMouseButton函数。<Br><Br>uses Windows, Registry ;<Br><Br>const<Br> LeftButton = '0' ;<Br> RightButton = '1' ;<Br> VaueToRead = 'SwapMouseButtons' ;<Br>begin<Br> with TRegistry.Create do<Br> begin<Br> try<Br> if OpenKey('Control Panel\Mouse',False) then<Br> begin<Br> if ValueExists(VaueToRead) then<Br> if ReadString(VaueToRead) = LeftButton then<Br> begin<Br> SwapMouseButton(True) ;<Br> WriteString(VaueToRead,RightButton) ;<Br> end else<Br> begin<Br> SwapMouseButton(False) ;<Br> WriteString(VaueToRead,LeftButton) ;<Br> end ;<Br> CloseKey ;<Br> end ;<Br> finally<Br> Free ;<Br> end ;<Br> end ;<Br>end.<Br><Br></span>
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