virtual L_INT LBitmapBase::DitherLine(pLBufferSrc, pLBufferDst)
Used in a loop, dithers the line in a specified input buffer, and writes it to the output buffer. You must supply the function to process data in the input buffer.
Pointer to an LBuffer object that contains the data to dither.
Pointer to an LBuffer object that will receive the dithered data.
Value | Meaning |
---|---|
SUCCESS | The function was successful. |
< 1 | An error occurred. Refer to Return Codes. |
Used in a loop, dithers the line in a specified input buffer, and writes it to the output buffer. You must supply the function to process data in the input buffer.
This function uses the dithering method specified in the class object's bitmap handle. Therefore, it provides better 4- or 8-bit output than the LBuffer::ConvertBuffer function.
This function uses the palette that the LBitmapBase::StartDithering function specifies. The output of the LBitmapBase::DitherLine function is made up of 1-, 4-, or 8-bit indexes to the specified palette. LBitmapBase::StopDithering cleans up the allocated variables and buffers. For a description of how the functions relate to each other, refer to the LBitmapBase::StartDithering function description.
This function does not support signed data images. It returns the error code ERROR_SIGNED_DATA_NOT_SUPPORTED if a signed data image is passed to this function.
This function does not support 32-bit grayscale images. It returns the error code ERROR_GRAY32_UNSUPPORTED if a 32-bit grayscale image is passed to this function.
Win32, x64.
For an example, refer to LBitmapBase::StartDithering.
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