| Symbol |
Code |
Description |
| SANE_TYPE_BOOL |
0 |
Option value is of type
SANE_Bool. |
| SANE_TYPE_INT |
1 |
Option value is of type
SANE_Int. |
| SANE_TYPE_FIXED |
2 |
Option value is of type
SANE_Fixed. |
| SANE_TYPE_STRING |
3 |
Option value is of type
SANE_String. |
| SANE_TYPE_BUTTON |
4 |
An option of this type has no value.
Instead, setting an option of this type has an option-specific
side-effect. For example, a button-typed option could be used by a
backend to provide a means to select default values or to the tell an
automatic document feeder to advance to the next sheet of paper. |
| SANE_TYPE_GROUP |
5 |
An option of this type has no value.
This type is used to group logically related options. A group option
is in effect up to the point where another group option is encountered
(or up to the end of the option list, if there are no other group
options). For group options, only members title and
type are valid in the option descriptor. |
