PXO_InputField
PXO_Inputfield is an input structure for OCR. PDF page coordinates are used and start at (0,0) - the lower left corner of the page. Points are the units of measurement (1/72 inch). Please note that all elements are case-sensitive:
MEMBER
|
TYPE
|
MEANING |
Left
|
Double
|
Left boundary of input field rectangle on page.
|
Bottom
|
Double
|
Bottom boundary of input field rectangle on page.
|
Right
|
Double
|
Right boundary of input field rectangle on page.
|
Top
|
Double
|
Top boundary of input field rectangle on page.
|
nPage
|
DWORD
|
The page number of the input PDF on which to OCR the zonal region.
|
Whitelist
|
BSTR
|
Optional character whitelist. Can be NULL (no whitelist).
|
Blacklist
|
BSTR
|
Optional character blacklist. Can be NULL (no blacklist).
|
Label
|
BSTR
|
Optional field label. This member is not yet used internally, but can be used to track the meaning of OCR output fields (e.g. database field names) for other elements of development.
|
Please note:
•SysAllocString() must be used to allocate BSTR variables.
•SysFreeString() must be used to deallocate BSTR variables.
•SDK functions that take PXO_InputField structures as input store BSTR members internally as copies.
•SDK functions that return a PXO_InputField structure allocate a new BSTR for the relevant members. SysFreeString() must be used to deallocate these members.