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<html><head><meta http-equiv="Content-Type" content="text/html; charset=gb2312"><title>动态调整显示器的分辨率</title></head><body><pre>Windows提供给我们两个API函数,可以动态调整显示器的分辨率, 他们是EnumDisplaySettings()和 ChangeDisplaySettings(), 下面这个例子就是了 </pre><pre><strong>function</strong> DynamicResolution(X, Y: word): BOOL;<strong>var</strong>    lpDevMode: TDeviceMode;<strong>begin</strong>Result := EnumDisplaySettings(nil, 0, lpDevMode);if Result then    <strong>begin</strong>    lpDevMode.dmFields := DM_PELSWIDTH Or DM_PELSHEIGHT;    lpDevMode.dmPelsWidth := X;    lpDevMode.dmPelsHeight := Y;    Result := ChangeDisplaySettings(lpDevMode, 0) = DISP_CHANGE_SUCCESSFUL;    <strong>end</strong>;<strong>end</strong>;<strong>procedure</strong> TForm1.Button1Click(Sender: TObject);<strong>begin</strong>if DynamicResolution(640, 480) then    ShowMessage('Now is 640*480');<strong>end</strong>;<strong>procedure</strong> TForm1.Button2Click(Sender: TObject);<strong>begin</strong>if DynamicResolution(800, 600) then    ShowMessage('Now is 800*600');<strong>end</strong>;</pre></body></html>

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