AUTOZONECALLBACK (original) (raw)
Summary
Handles each zone detected by the L_AutoZoneBitmap function.
Syntax
#include "l_bitmap.h"
L_INT pEXT_CALLBACK YourFunction(pRect, uType, pUserData)
Parameters
L_RECT * pRect
The rectangle that bounds the detected zone.
L_UINT 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. |
L_VOID * 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.
Returns
| Value | Meaning |
|---|---|
| SUCCESS | The function was successful. |
| < 1 | An error occurred. Refer to Return Codes. |
Comments
If no zones were detected the callback will not be fired.
Required DLLs and Libraries
- LTIMGCOR
- 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
Functions
Topics
Example
For an example, refer to L_AutoZoneBitmap.
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