References ▼
#include "l_bitmap.h"
L_INT pEXT_CALLBACK YourFunction(pRect, uType, pUserData)
Handles each zone detected by the L_AutoZoneBitmap function.
The rectangle that bounds the detected zone.
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. |
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.
| Value | Meaning |
|---|---|
| SUCCESS | 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
Help Collections
Raster .NET | C API | C++ Class Library | HTML5 JavaScript
Document .NET | C API | C++ Class Library | HTML5 JavaScript
Medical .NET | C API | C++ Class Library | HTML5 JavaScript
Medical Web Viewer .NET
Multimedia
Direct Show .NET | C API | Filters
Media Foundation .NET | C API | Transforms
Supported Platforms
.NET, Java, Android, and iOS/macOS Assemblies
Imaging, Medical, and Document
C API/C++ Class Libraries
Imaging, Medical, and Document
HTML5 JavaScript Libraries
Imaging, Medical, and Document