LBuffer::ExpandRows (original) (raw)
Summary
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.
Syntax
#include "ltwrappr.h"
virtual L_INT LBuffer::ExpandRows(LBufferSrc, nWidth, nRows)
Parameters
LBuffer& LBufferSrc
The input buffer containing 1-bit compressed image data.
L_UINT nWidth
Number of pixels in each row
L_UINT nRows
Number of rows to process.
Returns
| Value | Meaning |
|---|---|
| > 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
Topics
Example
For an example, refer to LBuffer::CompressRows.
LEADTOOLS Raster Imaging C++ Class Library Help