FILTERHEARTBEATCALLBACK

#include "l_bitmap.h"

L_INT pEXT_CALLBACK YourFunction (pData, pUserData)

Callback for tracking and aborting long-running operations.

Parameters

L_VOID* pData

Reserved for future use.

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 calling 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. The default processing for this marker can be performed.
ERROR_USER_ABORT Abort the caller filter operation.
< 1 An error occurred. Refer to Return Codes.

Comments

Refer to L_SetFilterHeartbeatCallback for more information.

Required DLLs and Libraries

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LEADTOOLS Raster Imaging C API Help
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Document Writers – Files To Be Included With Your Application
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Callback Functions
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