title: C++/CLI Converting System::String to const char*
body: <p>I'm using Microsoft Visual C++ 2008
  I want to join some strings, and then use it with "system" command.</p>
  
  <p>I tried to do it like this:</p>
  
  <pre><code>System::String^ link;
  link = "wget.exe --output-document=log http://ADDRESS";
  link = link + System::String::Copy(textBox_login-&gt;Text);
  link = link + "&amp;passwd=";
  link = link + System::String::Copy(textBox_passwd-&gt;Text);
  system(link); //LINE WITH ERROR
  </code></pre>
  
  <p>But i get  error C2664: 'system' : cannot convert parameter 1 from 'System::String ^' to 'const char *' </p>
  
  <p>I appreciate any help ;)</p>