LBuffer::ExpandRow
#include "ltwrappr.h"
virtual L_INT LBuffer::ExpandRow(LBufferSrc, nCol, nWidth)
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LBuffer& LBufferSrc; |
/* the input LBuffer object */ |
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L_UINT nCol; |
/* column offset within the row */ |
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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. This function is available in Document/Medical toolkits only.
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Parameter |
Description |
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LBufferSrc |
The input buffer containing 1-bit compressed image data. |
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nCol |
Column offset within the row to be processed. The function skips this many pixels before it begins processing. |
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nWidth |
The number of pixels to process. |
Returns
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0 |
The number of pixels processed. |
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< 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
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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. |
See Also
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Functions: |
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Topics: |
Example
For an example, refer to LBuffer::CompressRow.