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56 lines
2.1 KiB
56 lines
2.1 KiB
/*
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* QR Code generator library (C)
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*
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* Copyright (c) Project Nayuki
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* https://www.nayuki.io/page/qr-code-generator-library
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*
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* (MIT License)
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* Permission is hereby granted, free of charge, to any person obtaining a copy of
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* this software and associated documentation files (the "Software"), to deal in
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* the Software without restriction, including without limitation the rights to
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* use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
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* the Software, and to permit persons to whom the Software is furnished to do so,
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* subject to the following conditions:
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* - The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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* - The Software is provided "as is", without warranty of any kind, express or
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* implied, including but not limited to the warranties of merchantability,
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* fitness for a particular purpose and noninfringement. In no event shall the
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* authors or copyright holders be liable for any claim, damages or other
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* liability, whether in an action of contract, tort or otherwise, arising from,
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* out of or in connection with the Software or the use or other dealings in the
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* Software.
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*/
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#pragma once
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#include <stdbool.h>
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/*
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* Tests whether the given string can be encoded in alphanumeric mode.
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*/
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bool qrcodegen_isAlphanumeric(const char *text);
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/*
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* Tests whether the given string can be encoded in numeric mode.
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*/
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bool qrcodegen_isNumeric(const char *text);
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/*
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* Returns the side length of any QR Code of the given version.
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* The version must be in the range [1, 40]. The result is in the range [21, 177].
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* Note that the length of any QR Code byte buffer must be at least ceil(size^2 / 8).
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*/
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int qrcodegen_getSize(int version);
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/*
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* Returns the color of the module (pixel) at the given coordinates, which is either
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* true for white or false for black. The top left corner has the coordinates (x=0, y=0).
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* If the given coordinates are out of bounds, then false (white) is returned.
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*/
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bool qrcodegen_getModule(const uint8_t qrcode[], int version, int x, int y);
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