title: Monitor value via OCR
body: <p>Background:
  Sometime I have the need to monitor the change of a value in a certain program. 
  My solution is to use a batch file to capture the part of the screen with where the value is shown with Minicap and then use Tesseract to convert the value to plain text. However this script would not work so good if I would need to monitor value change every second for several hours.</p>
  
  <p>Current solution (simplified example):</p>
  
  <pre><code>minicap.exe -captureregion 800 600 850 620 -save C:\file.png -exit -escapequit
  tesseract.exe C:\file.png out.txt
  </code></pre>
  
  <p>Question:
  What I would like is some simple way to OCR a value directly from the screen to use in the batch file, perhaps buffer several values before appending them to a csv file. I would prefer to do this without the need to install python or write compiled software</p>