References ▼
#include "ltdoc2.h"
L_BOOL pEXT_CALLBACK YourFunction(pProgressData, pUserData)
pPROGRESSDATA2 pProgressData; |
pointer to PROGRESSDATA2 structure |
L_VOID * pUserData; |
pointer to additional parameters |
Reports the progress of a specific operation and offers the client an opportunity to cancel. The address of this callback is passed as an argument to the L_Doc2SetProgressCB function.
Parameter |
Description |
pProgressData |
Pointer to a PROGRESSDATA2 structure that contains progress data for the current process. |
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_Doc2SetProgressCB function.) |
|
Keep in mind that this is a void pointer, which must be cast to the appropriate data type within your callback function. |
SUCCESS |
The function was successful. |
< 1 |
An error occurred. Refer to Return Codes. |
This function called periodically by the OCR engine.
To activate the progress callback function, call the L_Doc2SetProgressCB function.
Required DLLs and Libraries
LTDOC2 For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application. |