117 lines
3.9 KiB
C#
117 lines
3.9 KiB
C#
using System.Runtime.InteropServices;
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namespace CloudPrint.Client.Helpers;
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/// <summary>
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/// Windows Print Spooler API P/Invoke 声明，用于 RAW 打印、队列枚举和任务取消。
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/// </summary>
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public static class WindowsPrintApi
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{
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public const int JobControlCancel = 3;
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public const int JobControlDelete = 5;
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
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public sealed class DocInfo
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{
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[MarshalAs(UnmanagedType.LPWStr)]
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public string DocumentName = string.Empty;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string? OutputFile;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string DataType = "RAW";
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}
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[StructLayout(LayoutKind.Sequential)]
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public struct SystemTime
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{
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public short Year;
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public short Month;
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public short DayOfWeek;
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public short Day;
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public short Hour;
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public short Minute;
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public short Second;
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public short Milliseconds;
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}
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[StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)]
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public struct JobInfo1
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{
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public int JobId;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string? PrinterName;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string? MachineName;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string? UserName;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string? DocumentName;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string? DataType;
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[MarshalAs(UnmanagedType.LPWStr)]
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public string? StatusText;
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public int Status;
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public int Priority;
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public int Position;
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public int TotalPages;
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public int PagesPrinted;
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public SystemTime Submitted;
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}
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[DllImport("winspool.drv", EntryPoint = "OpenPrinterW", SetLastError = true, CharSet = CharSet.Unicode)]
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[return: MarshalAs(UnmanagedType.Bool)]
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public static extern bool OpenPrinter(string printerName, out IntPtr printerHandle, IntPtr printerDefaults);
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[DllImport("winspool.drv", EntryPoint = "ClosePrinter", SetLastError = true)]
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[return: MarshalAs(UnmanagedType.Bool)]
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public static extern bool ClosePrinter(IntPtr printerHandle);
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[DllImport("winspool.drv", EntryPoint = "StartDocPrinterW", SetLastError = true, CharSet = CharSet.Unicode)]
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public static extern int StartDocPrinter(IntPtr printerHandle, int level, [In] DocInfo documentInfo);
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[DllImport("winspool.drv", EntryPoint = "EndDocPrinter", SetLastError = true)]
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[return: MarshalAs(UnmanagedType.Bool)]
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public static extern bool EndDocPrinter(IntPtr printerHandle);
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[DllImport("winspool.drv", EntryPoint = "StartPagePrinter", SetLastError = true)]
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[return: MarshalAs(UnmanagedType.Bool)]
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public static extern bool StartPagePrinter(IntPtr printerHandle);
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[DllImport("winspool.drv", EntryPoint = "EndPagePrinter", SetLastError = true)]
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[return: MarshalAs(UnmanagedType.Bool)]
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public static extern bool EndPagePrinter(IntPtr printerHandle);
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[DllImport("winspool.drv", EntryPoint = "WritePrinter", SetLastError = true)]
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[return: MarshalAs(UnmanagedType.Bool)]
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public static extern bool WritePrinter(IntPtr printerHandle, byte[] data, int count, out int written);
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[DllImport("winspool.drv", EntryPoint = "EnumJobsW", SetLastError = true, CharSet = CharSet.Unicode)]
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[return: MarshalAs(UnmanagedType.Bool)]
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public static extern bool EnumJobs(
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IntPtr printerHandle,
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int firstJob,
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int numberOfJobs,
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int level,
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IntPtr jobBuffer,
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int bufferSize,
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out int bytesNeeded,
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out int jobsReturned);
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[DllImport("winspool.drv", EntryPoint = "SetJobW", SetLastError = true, CharSet = CharSet.Unicode)]
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[return: MarshalAs(UnmanagedType.Bool)]
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public static extern bool SetJob(
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IntPtr printerHandle,
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int jobId,
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int level,
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IntPtr jobInfo,
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int command);
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} |