Metrohm 846 Driver Toolbox - Manual (Page 33)

3.1 Programming interface definitions
Dosing Interface USB Toolbox, Annex 29
3.1.3 C++ interface definition header file
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#ifndef Dosinginterface846_h
#define Dosinginterface846_h
#ifdef _USRDLL
#define DllDirection __declspec( dllexport )
#else
#define DllDirection __declspec( dllimport )
#endif
enum eReturnstate
{
// function could be set up correctly
RET_STAT_OK = 0,
// not a valid 846 Dosing Interface number or Dosino number
RET_STAT_nvNumber = 1,
// not a valid Dosino
RET_STAT_noDosino = 2,
// communication error
RET_STAT_commError = 3,
// function arguments out of specified range
RET_STAT_argError = 4,
// not a valid action
RET_STAT_nvAction = 5
};