#include "l_bitmap.h"

L_INT pEXT_CALLBACK YourFunction(pRect, uType, pUserData)

L_RECT * pRect;

zone rectangle

L_UINT uType;

zone type

L_VOID * pUserData;

pointer to additional parameters

Handles each zone detected by the L_AutoZoneBitmap function.

Parameter Description
pRect The rectangle that bounds the detected zone.
uType Value that determines the zone type. Possible values are:
  Value Meaning
  LEAD_ZONE_TYPE_TEXT [0x0000] The detected zone is a text.
  LEAD_ZONE_TYPE_GRAPHIC [0x0001] The detected zone is a graphic
  LEAD_ZONE_TYPE_TABLE [0x0002] The detected zone is a table.
  LEAD_ZONE_TYPE_DOT_LINE [0x0003] The detected zone is a line.
pUserData A void pointer that you can use to access a variable or structure containing data that your callback function needs. This gives you a way to receive data indirectly from the function that uses this callback function. (This is the same pointer that you pass in the pUserData parameter of the L_AutoZoneBitmap function).
  Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function.



The function was successful.

< 1

An error occurred. Refer to Return Codes.


If no zones were detected the callback will not be fired.

Required DLLs and Libraries


For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

See Also


L_AutoZoneBitmap, L_FreeZoneData


Support Functions: Callbacks


Processing an Image


For an example, refer to L_AutoZoneBitmap.

Help Version 20.0.2019.3.12
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