Trouble with DrawText

I am very new to QuickPDF but like it very much so far.  I am having trouble with DrawText not behaving as I believe it should and any help would be greatly appreciated!  I would like to insert some text at a particular position on an existing page that contains existing text.  Maybe this is not possible to write text over top (new text layer?) of existing text?  Here is how I am trying to do it in Visual Studio C++ Ver 6:

 

 if (msp_pdf_control.CreateInstance("QuickPDFAX0714.PDFLibrary") != 0)
  {
  MB("Sorry... Could not instantiate the QuickPDF control!");
  return false;
  }
 int success = msp_pdf_control->UnlockKey("jg6je64u3pj5x57ed8438p36y");

 

 msp_pdf_control->SetMeasurementUnits(2);

 msp_pdf_control->LoadFromFile("C:\\Test.pdf");

 msp_pdf_control->DrawText(2,2,"Some Text to Draw");

 msp_pdf_control->SaveToFile("C:\\Test.pdf");

 

 

The text is written to the document but it is ALWAYS written in the absolute lower left corner.  I have tried different positions for the text, I have tried not setting measurement units, I have tried writing on existing pages (with text) and on newly inserted empty pages but always get the text in the lower left.

 

Anything to point me in the right direction would sure be appreaciated

 

Thanks,

Doug

 

 

 

 

Thanks very much.  I appreciate your help!

 

Doug