LBuffer::ExpandRow

#include "ltwrappr.h"

virtual L_INT LBuffer::ExpandRow(LBufferSrc, nCol, nWidth)

LBuffer& LBufferSrc;	/* the input LBuffer object */
L_UINT nCol;	/* column offset within the row */
L_INT nWidth;	/* number of pixels to process */

Performs buffer-to-buffer decompression of RLE-compressed 1-bit image data. Use this function to process all or part of a single line of image data.

Parameter	Description
LBufferSrc	The input buffer containing 1-bit compressed image data.
nCol	Column offset within the row to be processed. The function skips this many pixels before it begins processing.
nWidth	The number of pixels to process.

Returns

0	The number of pixels processed.
< 1	An error occurred. Refer to Return Codes.

Comments

This function is useful for working with 1-bit images that are loaded in their compressed formats for faster loading and display. For more information, refer to Speeding Up 1-Bit Documents.

The parameter LBufferSrc is passed by reference, and is a required parameter.

Required DLLs and Libraries

LTDIS

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:	Class Members
Topics:	Speeding Up 1-Bit Documents