Epson TM-H6000IIIU Руководство по разработке - Страница 17
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Returned value One of the following is returned and stored in the ResultCode
property.
Value
OPOS_SUCCESS
OPOS_E_CLOSED
OPOS_E_NOTCLAIMED
OPOS_E_DISABLED
OPOS_E_ILLEGAL
Other
Requirement
Open, Claim & Enable
4) CHK_DI_IMAGE_FILTER
Parameter
Command
pData
pString
Explanation
Specifies an area to become effective after reading.
Example:
When you use the area of X = 0, Y = 500, CX = 1000,
CY = 1500,
specify pString = "0, 500, 1000, 1500".
Here,
X is the X coordinate of the start of the specified area.
Y is the Y coordinate of the start of the specified area.
CX is the X coordinate of the end of the specified area.
CY is the Y coordinate of the end of the specified area.
The values specified here affect MapMode.
Use the area number in pData and null character string ("") in pString
to cancel the specified area. Specify "0" in pData to cancel all area.
When you set at least one effective reading area, images other than
the setting area is filled with white.
When you specify the effective reading area, you must set the size of
APPLICATION DEVELOPMENT GUIDE
Meaning
DirectIO succeeded.
The device is closed.
The device is not claimed.
The device is disabled.
Specifies
function.
The parameter is illegal.
Refer to the ResultCode item.
Explanation
CHK_DI_IMAGE_FILTER
Specifies an area number. The available value is 1 to 10.
Specifies an area to set.
14
CheckScanner
Version 3.00 Feb. 2019
command
number
without
a