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  <author_name>aharisu</author_name>
  <author_url>https://blog.hatena.ne.jp/aharisu/</author_url>
  <blog_title>aharisuのごみ箱</blog_title>
  <blog_url>https://aharisu.hatenadiary.org/</blog_url>
  <categories>
    <anon>C#</anon>
  </categories>
  <description>今回は最近知った機能を紹介します。 なにはともあれ次のコードを見てください。 class MessageFilter : IMessageFilter { private const int WM_KEYDOWN = 0x100; public bool PreFilterMessage(ref Message m) { if (m.Msg == WM_KEYDOWN) { switch ((int)m.WParam) { case (int)Keys.A: MessageBox.Show(&quot;Filter A Down&quot;); break; } } return false; } } 次に上記の…</description>
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  <image_url></image_url>
  <provider_name>Hatena Blog</provider_name>
  <provider_url>https://hatena.blog</provider_url>
  <published>2009-05-04 01:14:59</published>
  <title>IMessageFilter</title>
  <type>rich</type>
  <url>https://aharisu.hatenadiary.org/entry/20090504/1241453699</url>
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