48 lines
2.4 KiB
C#
48 lines
2.4 KiB
C#
using System;
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using System.Runtime.InteropServices;
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namespace Tanshu.Accounts.Print
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{
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internal class PrinterLinux : PlatformPrinter
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{
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#region API Declarations
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// ReSharper disable InconsistentNaming
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[DllImport("libcups", CharSet = CharSet.Ansi)]
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static extern int cupsPrintFile(string printer, string filename, string title, int num_options, IntPtr options);
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// int cupsPrintFile (const char *name, const char *filename, const char *title, int num_options, cups_option_t *options);
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[DllImport("libcups", CharSet = CharSet.Ansi)]
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static extern int cupsCreateJob(string http, string name, string title, int num_options, IntPtr options);
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// int cupsCreateJob (http_t *http, const char *name, const char *title, int num_options, cups_option_t *options);
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[DllImport("libcups", CharSet = CharSet.Ansi)]
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static extern int cupsStartDocument(string http, string name, int job_id, string docname, string format, int last_document);
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// http_status_t cupsStartDocument (http_t *http, const char *name, int job_id, const char *docname, const char *format, int last_document);
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[DllImport("libcups", CharSet = CharSet.Ansi)]
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static extern int cupsWriteRequestData(string http, string buffer, int length);
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// http_status_t cupsWriteRequestData (http_t *http, const char *buffer, size_t length);
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[DllImport("libcups", CharSet = CharSet.Ansi)]
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static extern int cupsFinishDocument(string http, string name);
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// ipp_status_t cupsFinishDocument (http_t *http, const char *name);
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// ReSharper restore InconsistentNaming
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#endregion
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internal override bool Print(string printerName, string documentName, string printingText)
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{
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var cupsOption = new IntPtr(0);
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const string CUPS_HTTP_DEFAULT = "CUPS_HTTP_DEFAULT";
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var jobId = cupsCreateJob(CUPS_HTTP_DEFAULT, printerName, documentName, 0, cupsOption);
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if (jobId > 0)
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{
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const string format = "CUPS_FORMAT_TEXT";
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cupsStartDocument(CUPS_HTTP_DEFAULT, printerName, jobId, documentName, format, 1);
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cupsWriteRequestData(CUPS_HTTP_DEFAULT, printingText, printingText.Length);
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cupsFinishDocument(CUPS_HTTP_DEFAULT, printerName);
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}
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return jobId > 0;
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}
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}
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}
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