title: C# -- PInvokeStackImbalance detected on a well documented function?
body: <p>Here is my code for a ClickMouse() function:</p>
  
  <pre><code>    [DllImport("user32.dll", CharSet = CharSet.Auto, CallingConvention = CallingConvention.StdCall)]
      public static extern void mouse_event(long dwFlags, long dx, long dy, long cButtons, long dwExtraInfo);
  
  
      private const long MOUSEEVENTF_LEFTDOWN = 0x02;
      private const long MOUSEEVENTF_LEFTUP = 0x04;
      private const long MOUSEEVENTF_RIGHTDOWN = 0x08;
      private const long MOUSEEVENTF_RIGHTUP = 0x10;
      private void ClickMouse()
      {
          long X = Cursor.Position.X;
          long Y = Cursor.Position.Y;
          mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, X, Y, 0, 0);
  
      }
  </code></pre>
  
  <p>For some reason, when my program comes to this code, it throws this error message: </p>
  
  <blockquote>
    <p>PInvokeStackImbalance was detected Message: A call to PInvoke function
    'WindowsFormsApplication1!WindowsFormsApplication1.Form1::mouse_event'
    has unbalanced the stack. This is likely because the managed PInvoke
    signature does not match the unmanaged target signature. Check that
    the calling convention and parameters of the PInvoke signature match
    the target unmanaged signature.</p>
  </blockquote>
  
  <p>Please help?</p>