CreateDiagramInch(Integer iType Integer iFx Integer iWidth Integer iHeight Integer iXyAxis)
*** Creates a diagram of the type DFGR_?? with the effects of the
*** type DFGR_??. Returns a unique number for the diagram.
*** The returned ID is used by the other diagram functions. The
*** size of the diagram is set in Inch.
***
*** Returns Diagram Id or PRN_FALSE=Error
***