#include "ltdoc2.h"
L_BOOL pEXT_CALLBACK YourFunction(pProgressData, pUserData)
Reports the progress of a specific operation and offers an opportunity to cancel. The address of this callback is passed as an argument to the L_Doc2SetProgressCB / L_Doc2SetProgressCBExt function.
Pointer to a PROGRESSDATA2 structure containing progress data for the current process.
A void pointer to access a variable or structure containing data that PROGRESSCALLBACK2 needs. This gives you a way to receive data indirectly from the function that uses PROGRESSCALLBACK2. (This is the same pointer that you pass in the pUserData parameter of the L_Doc2SetProgressCB 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. |
PROGRESSCALLBACK2 is called periodically by the OCR engine.
To activate the progress callback function, call L_Doc2SetProgressCB / L_Doc2SetProgressCBExt.
Required DLLs and Libraries