title: Read all text from external Application
body: <p>I have a hotkey window application in C# and I want all the text from the focused window of other application on pressing hotkey like notepad, browser, command window(cmd), Turbo c++, Pascal etc.</p>
  
  <p>So Is it possible?</p>
  
  <p>If any one have idea please help me with code example.</p>
  
  <p>I have attach screen shot. I want to read text from this window. On pressing hotkey I want to read text "This is my test text".</p>
  
  <p><img src="https://i.stack.imgur.com/3fmq0.png" alt="enter image description here"></p>