L_LTKRN_API L_INT L_ExpandRows(pRun, pBuffer, nWidth, nRows)
Does buffer-to-buffer decompression of RLE-compressed 1-bit image data. Use this function to process multiple lines of image data.
Pointer to the input buffer containing 1-bit compressed image data.
Pointer to the output buffer, which is to be filled with 1-bit image data. The size of each row must be rounded up to a multiple of 4 bytes. Use integer math to calculate the required size of this buffer as follows: bytes required = (((
nWidth + 31) &~31)/ 8) *
The number of pixels in each row.
The number of rows to process.
|> 0||The number of pixels processed.|
|< 1||An error occurred. Refer to Return Codes.|
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.
Required DLLs and Libraries
Win32, x64, Linux.
For an example, refer to L_GetBitmapRowCompressed.
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