title: C++ undefined reference to '_imp__StretchBlt@44
body: <p>I'm new on here and unfortunalety my English is pretty bad.
  I'm working on my program, I'm trying to make tunnel effect on desktop(like MEMZ...).
  I get an error like this:
  "undefined reference to '_imp__StretchBlt@44'"</p>
  
  <pre><code>int main(){
  const HWND ali2 = GetDesktopWindow();
      RECT masadikdortgen;
      GetWindowRect(ali2,&amp;masadikdortgen);
      int xDest;
      int yDest;
      xDest = masadikdortgen.right;
      yDest = masadikdortgen.bottom;
      HWND desk = GetDesktopWindow();
       HDC ali = GetDC(desk);
      StretchBlt( ali, 50, 50, xDest - 100 , yDest - 100, ali, 0, 0, xDest, yDest, SRCCOPY);
          }
  </code></pre>