Other Alias
VistaIOOffsetSYNTAX
#include <vistaio.h> size_t VistaIOOffset (pointer_type, field_name)
- Type pointer_type; Field field_name;
- Type struct_type; Field field_name;
ARGUMENTS
- field_name
- Specifies the name of a structure field for which to calculate the byte offset.
- pointer_type
- Specifies a type that is declared as a pointer to a structure.
- struct_type
- Specifies a type that is declared as a structure.
DESCRIPTION
The VistaIOOffset and VistaIOOffsetOf macros return the byte offset of the field_name field within its structure.NOTES
These are equivalent to the X Toolkit macros XtOffset(3Xt) and XtOffsetOf(3Xt). ANSI C defines an offsetof macro, which is to be preferred over any of these.