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.

Platforms

Win32, x64.

See Also

Functions:

Class Members

Topics:

Speeding Up 1-Bit Documents

Example

For an example, refer to LBuffer::CompressRow.

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