COMPBUFFCALLBACK Function

#include "l_bitmap.h"

L_INT pEXT_CALLBACK YourFunction (pBitmap, pBuffer, uBytes, pUserData)

pBITMAPHANDLE pBitmap;

pointer to the bitmap handle

L_UCHAR* pBuffer;

pointer to a buffer containing compressed data

L_SIZE_T uBytes;

number of bytes in the buffer

L_VOID* pUserData;

pointer to additional parameters

Writes output from the L_CompressBuffer function.

Parameter

Description

pBitmap

Pointer to the bitmap handle that contains the image information.

pBuffer

Pointer to the caller's output buffer containing compressed data.

uBytes

The number of bytes in the buffer.

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

SUCCESS

The function was successful.

< 1

An error occurred. Refer to Return Codes.

Required DLLs and Libraries

LTFIL

For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application

See Also

Functions:

L_StartCompressBuffer, L_CompressBuffer, L_EndCompressBuffer

Example

For an example, refer to L_StartCompressBuffer.

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