PT_TYPE, PT_uVALUE
PT_TYPE, PT_uVALUE — holds the type and value a Cascade DataHub point.
Synopsis
/* A point type can be at least one of the following: */
enum PT_TYPE
{
PT_TYPE_STRING,
PT_TYPE_REAL,
PT_TYPE_INT32,
};
/* A points value is stored in the following union: */
typedef union
{
ptreal r;
int32 i;
char *s;
} PT_uVALUE;
typedef PT_uVALUE *PT_pVALUE;Members
At least the following fields are defined:
- r
Either a single-precision or a double-precision floating point number.
- i
A 32-bit signed integer regardless of the machine architecture or compiler.
- s
A C-style (null-terminated) string of characters.
