📄 11.再快一点.htm
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<p align="center"><font size="3" color="#000080"><b>第十一章、再快一点</b></font></p>
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<p class="MsoNormal" style="text-indent: 21.0pt; line-height: 150%"><font color="#0000FF"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">在本章前我们从教学的可接受性考虑，都是用标准</span><span lang="EN-US">GDI</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">函数在编制游戏，事实证明，在计算机硬件高速发展的今天，用标准</span><span lang="EN-US">GDI</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">函数开发游戏也是可行的。当然，微软公司既然在</span><span lang="EN-US">Windows</span><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">中推出了用于游戏开发的</span><span lang="EN-US" style="mso-bidi-font-size:
9.0pt;font-family:宋体">DirectX技术；这种技术在游戏开发中确实有它的独到之处，加上微软的自我吹嘘，于是搞游戏不用DirectX技术拟乎是差点什么？现有的DirectX技术资料在语言描述上总是拐来绕去的，对初学者来说，真有点摸不到门坊；这就更增加了DirectX技术的神秘感。好，以下我们也在游戏中引入DirectX技术，用另类的眼光来认认这个DirectX吧。<o:p>
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<p class="MsoNormal" style="text-indent: 21.0pt; line-height: 150%"><font color="#0000FF"><span style="font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">我们引入</span><span lang="EN-US" style="mso-bidi-font-size:9.0pt;
font-family:宋体">DirectX技术，先作两个简化：一是我们在MFC中引入DirectX，二是保持窗口模式；这样可以保证我们前面的程序不做大的变动。</span></font></p>
<p class="MsoNormal" style="text-indent: 21.0pt; line-height: 200%"><span style="mso-bidi-font-size: 12.0pt; font-family: 宋体; mso-bidi-font-family: Times New Roman; mso-font-kerning: 1.0pt; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA"><font size="2" color="#0000FF"><b>创建各个缓存页面</b></font></span></p>
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<p class="MsoNormal"><span style="font-family:宋体"><font color="#0000FF">页面名称<span lang="EN-US"><o:p>
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<p class="MsoNormal"><span style="font-family:宋体"><font color="#0000FF">宽<span lang="EN-US">X高<o:p>
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<p class="MsoNormal"><span style="font-family:宋体"><font color="#0000FF">页面变量<span lang="EN-US"><o:p>
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<p class="MsoNormal"><span style="font-family:宋体"><font color="#0000FF">说明<span lang="EN-US"><o:p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:宋体"><font color="#0000FF">GDI设备场景<o:p>
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<p class="MsoNormal"><span style="font-family:宋体"><font color="#0000FF">主显页面<span lang="EN-US"><o:p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:宋体"><font color="#0000FF">800X600<o:p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:宋体"><font color="#0000FF">DXSPrimary<o:p>
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<p class="MsoNormal"><span style="font-family:宋体"><font color="#0000FF">当前屏幕显示区<span lang="EN-US"><o:p>
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<p class="MsoNormal"><span style="font-family:宋体"><font color="#0000FF">主缓存页面<span lang="EN-US"><o:p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:宋体"><font color="#0000FF">DXSBack1<o:p>
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<p class="MsoNormal"><span style="font-family:宋体"><font color="#0000FF">生成场景的暂存区<span lang="EN-US"><o:p>
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<p class="MsoNormal"><span lang="EN-US" style="font-family:宋体"><font color="#0000FF">BkDC1<o:p>
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