References ▼
#include "ltdoc2.h"
L_LTDOC2_API L_INT EXT_FUNCTION L_Doc2ExcludeZoneRect(hDoc, nPageIndex, nZoneIndex, prc)
L_HDOC2 hDoc; |
handle to the OCR document |
L_INT nPageIndex; |
page index |
L_INT nZoneIndex; |
zone index |
RECT * prc; |
Pointer to RECT structure |
Excludes a rectangle from a user zone.
Parameter |
Description |
hDoc |
Handle to the OCR document. This handle is obtained by calling the L_Doc2StartUp function. |
nPageIndex |
Index of the page. This is a zero-based index. |
nZoneIndex |
Index of the zone. This is a zero-based index. |
prc |
Pointer to RECT structure to be subtracted from specific zone |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
This function subtracts a rectangle from an existing user zone. The function will recalculate the rectangle list of the zone. The resulting list must be a pizzabox-shape except for OMR zones.
A pizzabox shape is a union of rectangles, where the top of each rectangle in the union must touch the bottom of the rectangle above it. A rectangle can touch at most one rectangle above and one below. The following zones cannot have a pizzabox shape:
Table zones (must be rectangular)
OMR zone (can contain non-touching rectangles)
To add a new rectangle to a zone, call the L_Doc2AddZoneRect function.
Required DLLs and Libraries
LTDOC2 For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
For an example, refer to L_Doc2AddZoneRect.