title: Mapping TO ctrl+[something] doesn't work in gvim
body: <p>I am using GVim 7.4 and I would like to do some really simple mapping to use CtrlP fuzzy matching of tags when a key combination is used.</p>
  
  <p>I tried 2 approaches and they all seem to fail when vim calls Control + [x] combination. While I do understand that there are restrictions when it comes to mapping Ctrl+[x] codes, I haven't found any information on why ctrl mapping wouldn't work.</p>
  
  <pre><code>noremap \t :CtrlPTag&lt;CR&gt;&lt;C-\&gt;w
  </code></pre>
  
  <p>This one enters CtrlP tag mode but then it doesn't enter word from under the cursor.</p>
  
  <pre><code>noremap \t &lt;C-p&gt;&lt;C-\&gt;w
  </code></pre>
  
  <p>Here we don't even get to CtrlP window (I even omit going into tag mode here for simplicity).</p>