Gets/sets the field acquired when IMG_ATTR_FRAME_FIELD is set to FIELD_MODE. When you are using FRAME_MODE, this attribute is the first field that is acquired in time.
The following list includes possible constant values:
- IMG_ACQUIRE_ALL—Acquires all fields.
- IMG_ACQUIRE_EVEN—Acquires only even fields.
- IMG_ACQUIRE_ODD—Acquires only odd fields.
- IMG_ACQUIRE_ALTERNATING—Acquires all fields and uses IMG_ATTR_START_FIELD to determine the first field to acquire.
The following table shows when the property is readable and writable and what devices it applies to.