Help Version 19.0.2017.10.27
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#include "ltocr.h"
L_VOID pEXT_CALLBACK YourFunction(job, category, message, userData)
| L_OcrAutoRecognizeJob job; | Current running OCR job |
| L_OcrTraceCategory category; | Log message severity |
| const L_TCHAR* message | Log message |
| L_VOID* userData; | pointer to additional parameters |
The trace callback that gets invoked when L_OcrAutoRecognizeManager outputs debug messages for the current running job.
| Parameter | Description |
|---|---|
| job | Current running OCR job |
| category | Specifies the logged message severity. For a list of possible values, refer to L_OcrTraceCategory |
| message | The log message the current OCR job sent |
| 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 TraceCallbackUserData member of the L_OcrAutoRecognizeManagerOptions structure you set by calling L_OcrAutoRecognizeManager_SetOptions function.) Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function. |
This callback will be invoked when L_OcrAutoRecognizeManager outputs debug messages for the current running job.
In order to activate this callback you need to create an instance of L_OcrAutoRecognizeManagerOptions, initialize it and pass your callback function pointer to the L_OcrAutoRecognizeManagerOptions.TraceCallback member and then call L_OcrAutoRecognizeManager_SetOptions, these steps will set the auto recognize manager options only but this callback will be invoked after a call to L_OcrAutoRecognizeManager_RunJob, L_OcrAutoRecognizeManager_RunJobAsync or L_OcrAutoRecognizeManager_Run.
Required DLLs and Libraries
| LTOCR For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |
| Functions: | L_OcrAutoRecognizeManager_RunJob, L_OcrAutoRecognizeManager_RunJobAsync, L_OcrAutoRecognizeManager_Run |
| Topics: | Recognizing OCR Pages |
For an example, refer to L_OcrAutoRecognizeManager.