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将HTML复制到系统剪切板中并导入到Word中
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‎C#/HTML2Word/README.md‎

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### HTML转出到Word中 ###
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通过系统剪切板把HTML复制到Word中，并且保留原来的格式
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```C#
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class HTMLUtils
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{
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// 将HTML代码复制到Windows剪贴板，并保证中
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[DllImport("user32.dll")]
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static extern bool OpenClipboard(IntPtr hWndNewOwner);
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[DllImport("user32.dll")]
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static extern bool EmptyClipboard();
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[DllImport("user32.dll")]
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static extern IntPtr SetClipboardData(uint uFormat, IntPtr hMem);
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[DllImport("user32.dll")]
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static extern bool CloseClipboard();
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[DllImport("user32.dll", SetLastError = true)]
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static extern uint RegisterClipboardFormatA(string lpszFormat);
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[DllImport("kernel32.dll", SetLastError = true)]
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static extern IntPtr GlobalLock(IntPtr hMem);
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[DllImport("kernel32.dll", SetLastError = true)]
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static extern uint GlobalSize(IntPtr hMem);
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[DllImport("kernel32.dll", SetLastError = true)]
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static extern IntPtr GlobalUnlock(IntPtr hMem);
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/// <summary>
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/// copy the html into clipboard
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/// </summary>
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/// <param name="html"></param>
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/// <returns></returns>
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static public bool CopyHTMLToClipboard(string html)
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{
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uint CF_HTML = RegisterClipboardFormatA("HTML Format");
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bool bResult = false;
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if (OpenClipboard(IntPtr.Zero))
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{
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if (EmptyClipboard())
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{
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byte[] bs = System.Text.Encoding.UTF8.GetBytes(html);
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int size = Marshal.SizeOf(typeof(byte)) * bs.Length;
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IntPtr ptr = Marshal.AllocHGlobal(size);
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Marshal.Copy(bs, 0, ptr, bs.Length);
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IntPtr hRes = SetClipboardData(CF_HTML, ptr);
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CloseClipboard();
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}
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}
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return bResult;
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}
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//将HTML代码按照Windows剪贴板格进行格式化
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public static string HtmlClipboardData(string html)
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{
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StringBuilder sb = new StringBuilder();
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Encoding encoding = Encoding.UTF8; //Encoding.GetEncoding(936);
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string Header = @"Version: 1.0
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StartHTML: {0:000000}
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EndHTML: {1:000000}
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StartFragment: {2:000000}
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EndFragment: {3:000000}
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";
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string HtmlPrefix = @"<!DOCTYPE HTML PUBLIC ""-//W3C//DTD HTML 4.0 Transitional//EN"">
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<html>
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<head>
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<meta http-equiv=Content-Type content=""text/html; charset={0}"">
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</head>
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<body>
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<!--StartFragment-->
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";
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HtmlPrefix = string.Format(HtmlPrefix, "gb2312");
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string HtmlSuffix = @"<!--EndFragment--></body></html>";
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// Get lengths of chunks
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int HeaderLength = encoding.GetByteCount(Header);
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HeaderLength -= 16; // extra formatting characters {0:000000}
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int PrefixLength = encoding.GetByteCount(HtmlPrefix);
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int HtmlLength = encoding.GetByteCount(html);
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int SuffixLength = encoding.GetByteCount(HtmlSuffix);
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// Determine locations of chunks
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int StartHtml = HeaderLength;
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int StartFragment = StartHtml + PrefixLength;
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int EndFragment = StartFragment + HtmlLength;
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int EndHtml = EndFragment + SuffixLength;
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// Build the data
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sb.AppendFormat(Header, StartHtml, EndHtml, StartFragment, EndFragment);
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sb.Append(HtmlPrefix);
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sb.Append(html);
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sb.Append(HtmlSuffix);
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//Console.WriteLine(sb.ToString());
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return sb.ToString();
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}
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}
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```
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调用：
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```C#
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string html = "<p><input type='text' name='test'>abc</p>";
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html = HTMLUtils.HtmlClipboardData(html);
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HTMLUtils.CopyHTMLToClipboard(html);
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```

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