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57 lines
2.0 KiB
PHP
57 lines
2.0 KiB
PHP
<?php
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/**
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* escpos-php, a Thermal receipt printer library, for use with
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* ESC/POS compatible printers.
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*
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* Copyright (c) 2014-2015 Michael Billington <michael.billington@gmail.com>,
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* incorporating modifications by:
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* - Roni Saha <roni.cse@gmail.com>
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* - Gergely Radics <gerifield@ustream.tv>
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* - Warren Doyle <w.doyle@fuelled.co>
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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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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* Interface passed to Escpos class for receiving print data. Print connectors
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* are responsible for transporting this to the actual printer.
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*/
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interface PrintConnector {
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/**
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* Print connectors should cause a NOTICE if they are deconstructed
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* when they have not been finalized.
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*/
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public function __destruct();
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/**
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* Finish using this print connector (close file, socket, send
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* accumulated output, etc).
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*/
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public function finalize();
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/**
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* @param string $data
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* @return Data read from the printer, or false where reading is not possible.
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*/
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public function read($len);
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/**
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* @param string $data
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*/
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public function write($data);
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}
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