Hitachi HT-4139-28 Developer's Manual page 47

A p p e n d i x
A-2 Error Message
This TWAIN driver reports error messages without UI when errors occur.
This driver displays error message on the most front layer of scanning process But if a screen of
other job is front of that of scanning process, error message will be displayed behind the screen
of other process.
If you prefer to see error message at front, set an option to support it. This option is common to
whole systems. (It can not be set for each application, user individually.)
Set information of this option in registry.
Key :HKEY_LOCAL_MACHINE
subkey :SOFTWARE¥HITACHI¥SOFTOCR¥CurrentVersion¥TWAIN¥ERRACT
name of the value :No Name
type code :REG_SZ
data :YES or NO （case-sensitive）
Default:NO
CAUTION
In registry, important information for computer hardware and software to operate system are
stored.
If there were an error in the registry, computer would be unstable or would not work.
Before you edit the registry be sure to back up it.
A-2