update state for one of 4 parallel passes */

Clean up native data associated with an instance.

Clean up native data associated with an instance.

Clean up native data associated with an instance.

Clean up native data associated with an instance.

reset all EAN/UPC state */

Print the program name and error message MESSAGE, which is a printf-style format string with optional args. If ERRNUM is nonzero, print its corr

从相机支持的分辨率中计算出最适合的预览界面尺寸 @param parameters @param screenResolution @return

Determine the full pathname of the current executable, freshly allocated. Return NULL if unknown. Guaranteed to work on Linux and Woe32. Likely

Retrieve C pointer to first symbol in the set.

Retrieve the image sample data.

Retrieve decode results for last scanned image. @returns the SymbolSet result container

Retrieve the size of the image.

Return a pointer to the contents of the charset.alias file. */

retrieve data decoded from symbol.

Return the full pathname of the current executable, based on the earlier call to set_program_name_and_installdir. Return NULL if unknown. */

Return the full pathname of the current shared library. Return NULL if unknown. Guaranteed to work only on Linux, Cygwin and Woe32. */

Return the full pathname of the current shared library. Return NULL if unknown. Guaranteed to work only on Linux, Cygwin and Woe32. */

Return the full pathname of the current shared library. Return NULL if unknown. Guaranteed to work only on Linux, Cygwin and Woe32. */

retrieve the string name of the symbol type.

Division in GF(2**4) using logarithms. The result when dividing by zero is undefined.*/

Returns true if the iteration has more elements.

初始化截取的矩形区域

* Determine whether the Unicode range goes outside the BMP. */

Return non-zero if FD is open. */