title: 64bit int Spin Box in QT
body: <p>I'm building a windows program which shall have controls for 64bit numeric values. these controls shall be switchable to be signed or unsigned.</p>
  
  <p>I found two controls:
  "Spin Box"(int32) and "Double Spin Box"(double)
  with double I'd be able to cover the range but it can't handle the precision.</p>
  
  <p>Is there a way to change the data type of these controls?</p>
  
  <p>Is it possible to create an own control which can handle signed and unsigned 64bit values?
  Is it possible to create a 128bit Spin box?</p>
  
  <p>The only work around I can see right now is in using a string control and manually convert to an INT64 or UINT64 but I'm not very happy with this solution</p>
  
  <p>Any other Ideas?</p>
  
  <p>I'm on QT 4.7.4 and VS2010 with C++
  thx</p>