Function            DoubleDOSGetVirtual - get DoubleDOS virtual
                                              screen address

  Syntax              unsigned int DoubleDOSGetVirtual(void);

  Prototype in        multihk.h

  Remarks             determines and returns the segment of the virtual
                      screen address for the current task.

  Return value        DoubleDOSGetVirtual returns the segment of the
                      virtual screen address

  See also            DoubleDOSfreeCPU(), DoubleDOSTaskSwitch(),
                      isDoubleDOS(), isInvisible()