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/* Copyright (c) 2010 Daniel Doubrovkine, All Rights Reserved
 *
 * The contents of this file is dual-licensed under 2
 * alternative Open Source/Free licenses: LGPL 2.1 or later and
 * Apache License 2.0. (starting with JNA version 4.0.0).
 *
 * You can freely decide which license you want to apply to
 * the project.
 *
 * You may obtain a copy of the LGPL License at:
 *
 * http://www.gnu.org/licenses/licenses.html
 *
 * A copy is also included in the downloadable source code package
 * containing JNA, in file "LGPL2.1".
 *
 * You may obtain a copy of the Apache License at:
 *
 * http://www.apache.org/licenses/
 *
 * A copy is also included in the downloadable source code package
 * containing JNA, in file "AL2.0".
 */
package com.sun.jna.platform.win32;

import com.sun.jna.Memory;
import com.sun.jna.Native;
import com.sun.jna.Pointer;
import com.sun.jna.Structure;
import com.sun.jna.Structure.FieldOrder;
import com.sun.jna.platform.win32.WinBase.SYSTEMTIME;
import com.sun.jna.platform.win32.WinDef.DWORD;
import com.sun.jna.platform.win32.WinDef.DWORDByReference;
import com.sun.jna.platform.win32.WinDef.INT_PTR;
import com.sun.jna.platform.win32.WinDef.LPVOID;
import com.sun.jna.platform.win32.WinNT.HANDLE;
import com.sun.jna.platform.win32.WinNT.HANDLEByReference;
import com.sun.jna.ptr.IntByReference;
import com.sun.jna.win32.StdCallLibrary;
import com.sun.jna.win32.W32APIOptions;

/**
 * Ported from Winspool.h. Windows SDK 6.0a
 *
 * @author dblock[at]dblock.org
 */
public interface Winspool extends StdCallLibrary {

    Winspool INSTANCE = Native.load("Winspool.drv", Winspool.class, W32APIOptions.DEFAULT_OPTIONS);

    public static final int CCHDEVICENAME = 32;

    public static final int PRINTER_STATUS_PAUSED = 0x00000001;
    public static final int PRINTER_STATUS_ERROR = 0x00000002;
    public static final int PRINTER_STATUS_PENDING_DELETION = 0x00000004;
    public static final int PRINTER_STATUS_PAPER_JAM = 0x00000008;
    public static final int PRINTER_STATUS_PAPER_OUT = 0x00000010;
    public static final int PRINTER_STATUS_MANUAL_FEED = 0x00000020;
    public static final int PRINTER_STATUS_PAPER_PROBLEM = 0x00000040;
    public static final int PRINTER_STATUS_OFFLINE = 0x00000080;
    public static final int PRINTER_STATUS_IO_ACTIVE = 0x00000100;
    public static final int PRINTER_STATUS_BUSY = 0x00000200;
    public static final int PRINTER_STATUS_PRINTING = 0x00000400;
    public static final int PRINTER_STATUS_OUTPUT_BIN_FULL = 0x00000800;
    public static final int PRINTER_STATUS_NOT_AVAILABLE = 0x00001000;
    public static final int PRINTER_STATUS_WAITING = 0x00002000;
    public static final int PRINTER_STATUS_PROCESSING = 0x00004000;
    public static final int PRINTER_STATUS_INITIALIZING = 0x00008000;
    public static final int PRINTER_STATUS_WARMING_UP = 0x00010000;
    public static final int PRINTER_STATUS_TONER_LOW = 0x00020000;
    public static final int PRINTER_STATUS_NO_TONER = 0x00040000;
    public static final int PRINTER_STATUS_PAGE_PUNT = 0x00080000;
    public static final int PRINTER_STATUS_USER_INTERVENTION = 0x00100000;
    public static final int PRINTER_STATUS_OUT_OF_MEMORY = 0x00200000;
    public static final int PRINTER_STATUS_DOOR_OPEN = 0x00400000;
    public static final int PRINTER_STATUS_SERVER_UNKNOWN = 0x00800000;
    public static final int PRINTER_STATUS_POWER_SAVE = 0x01000000;

    public static final int PRINTER_ATTRIBUTE_QUEUED = 0x00000001;
    public static final int PRINTER_ATTRIBUTE_DIRECT = 0x00000002;
    public static final int PRINTER_ATTRIBUTE_DEFAULT = 0x00000004;
    public static final int PRINTER_ATTRIBUTE_SHARED = 0x00000008;
    public static final int PRINTER_ATTRIBUTE_NETWORK = 0x00000010;
    public static final int PRINTER_ATTRIBUTE_HIDDEN = 0x00000020;
    public static final int PRINTER_ATTRIBUTE_LOCAL = 0x00000040;
    public static final int PRINTER_ATTRIBUTE_ENABLE_DEVQ = 0x00000080;
    public static final int PRINTER_ATTRIBUTE_KEEPPRINTEDJOBS = 0x00000100;
    public static final int PRINTER_ATTRIBUTE_DO_COMPLETE_FIRST = 0x00000200;
    public static final int PRINTER_ATTRIBUTE_WORK_OFFLINE = 0x00000400;
    public static final int PRINTER_ATTRIBUTE_ENABLE_BIDI = 0x00000800;
    public static final int PRINTER_ATTRIBUTE_RAW_ONLY = 0x00001000;
    public static final int PRINTER_ATTRIBUTE_PUBLISHED = 0x00002000;
    public static final int PRINTER_ATTRIBUTE_FAX = 0x00004000;
    public static final int PRINTER_ATTRIBUTE_TS = 0x00008000;
    public static final int PRINTER_ATTRIBUTE_PUSHED_USER = 0x00020000;
    public static final int PRINTER_ATTRIBUTE_PUSHED_MACHINE = 0x00040000;
    public static final int PRINTER_ATTRIBUTE_MACHINE = 0x00080000;
    public static final int PRINTER_ATTRIBUTE_FRIENDLY_NAME = 0x00100000;
    public static final int PRINTER_ATTRIBUTE_TS_GENERIC_DRIVER = 0x00200000;

    public static final int PRINTER_CHANGE_ADD_PRINTER = 0x00000001;
    public static final int PRINTER_CHANGE_SET_PRINTER = 0x00000002;
    public static final int PRINTER_CHANGE_DELETE_PRINTER = 0x00000004;
    public static final int PRINTER_CHANGE_FAILED_CONNECTION_PRINTER = 0x00000008;
    public static final int PRINTER_CHANGE_PRINTER = 0x000000FF;
    public static final int PRINTER_CHANGE_ADD_JOB = 0x00000100;
    public static final int PRINTER_CHANGE_SET_JOB = 0x00000200;
    public static final int PRINTER_CHANGE_DELETE_JOB = 0x00000400;
    public static final int PRINTER_CHANGE_WRITE_JOB = 0x00000800;
    public static final int PRINTER_CHANGE_JOB = 0x0000FF00;
    public static final int PRINTER_CHANGE_ADD_FORM = 0x00010000;
    public static final int PRINTER_CHANGE_SET_FORM = 0x00020000;
    public static final int PRINTER_CHANGE_DELETE_FORM = 0x00040000;
    public static final int PRINTER_CHANGE_FORM = 0x00070000;
    public static final int PRINTER_CHANGE_ADD_PORT = 0x00100000;
    public static final int PRINTER_CHANGE_CONFIGURE_PORT = 0x00200000;
    public static final int PRINTER_CHANGE_DELETE_PORT = 0x00400000;
    public static final int PRINTER_CHANGE_PORT = 0x00700000;
    public static final int PRINTER_CHANGE_ADD_PRINT_PROCESSOR = 0x01000000;
    public static final int PRINTER_CHANGE_DELETE_PRINT_PROCESSOR = 0x04000000;
    public static final int PRINTER_CHANGE_PRINT_PROCESSOR = 0x07000000;
    public static final int PRINTER_CHANGE_SERVER = 0x08000000;
    public static final int PRINTER_CHANGE_ADD_PRINTER_DRIVER = 0x10000000;
    public static final int PRINTER_CHANGE_SET_PRINTER_DRIVER = 0x20000000;
    public static final int PRINTER_CHANGE_DELETE_PRINTER_DRIVER = 0x40000000;
    public static final int PRINTER_CHANGE_PRINTER_DRIVER = 0x70000000;
    public static final int PRINTER_CHANGE_TIMEOUT = 0x80000000;
    public static final int PRINTER_CHANGE_ALL_WIN7 = 0x7F77FFFF;
    public static final int PRINTER_CHANGE_ALL = 0x7777FFFF;

    public static final int PRINTER_ENUM_DEFAULT = 0x00000001;
    public static final int PRINTER_ENUM_LOCAL = 0x00000002;
    public static final int PRINTER_ENUM_CONNECTIONS = 0x00000004;
    public static final int PRINTER_ENUM_FAVORITE = 0x00000004;
    public static final int PRINTER_ENUM_NAME = 0x00000008;
    public static final int PRINTER_ENUM_REMOTE = 0x00000010;
    public static final int PRINTER_ENUM_SHARED = 0x00000020;
    public static final int PRINTER_ENUM_NETWORK = 0x00000040;

    public static final int PRINTER_ENUM_EXPAND = 0x00004000;
    public static final int PRINTER_ENUM_CONTAINER = 0x00008000;

    public static final int PRINTER_ENUM_ICONMASK = 0x00ff0000;
    public static final int PRINTER_ENUM_ICON1 = 0x00010000;
    public static final int PRINTER_ENUM_ICON2 = 0x00020000;
    public static final int PRINTER_ENUM_ICON3 = 0x00040000;
    public static final int PRINTER_ENUM_ICON4 = 0x00080000;
    public static final int PRINTER_ENUM_ICON5 = 0x00100000;
    public static final int PRINTER_ENUM_ICON6 = 0x00200000;
    public static final int PRINTER_ENUM_ICON7 = 0x00400000;
    public static final int PRINTER_ENUM_ICON8 = 0x00800000;
    public static final int PRINTER_ENUM_HIDE = 0x01000000;

    /**
     * The EnumPrinters function enumerates available printers, print servers,
     * domains, or print providers.
     *
     * @param Flags
     *            The types of print objects that the function should enumerate.
     * @param Name
     *            If Level is 1, Flags contains PRINTER_ENUM_NAME, and Name is
     *            non-NULL, then Name is a pointer to a null-terminated string
     *            that specifies the name of the object to enumerate. This
     *            string can be the name of a server, a domain, or a print
     *            provider. If Level is 1, Flags contains PRINTER_ENUM_NAME, and
     *            Name is NULL, then the function enumerates the available print
     *            providers. If Level is 1, Flags contains PRINTER_ENUM_REMOTE,
     *            and Name is NULL, then the function enumerates the printers in
     *            the user's domain. If Level is 2 or 5,Name is a pointer to a
     *            null-terminated string that specifies the name of a server
     *            whose printers are to be enumerated. If this string is NULL,
     *            then the function enumerates the printers installed on the
     *            local computer. If Level is 4, Name should be NULL. The
     *            function always queries on the local computer. When Name is
     *            NULL, setting Flags to PRINTER_ENUM_LOCAL |
     *            PRINTER_ENUM_CONNECTIONS enumerates printers that are
     *            installed on the local machine. These printers include those
     *            that are physically attached to the local machine as well as
     *            remote printers to which it has a network connection. When
     *            Name is not NULL, setting Flags to PRINTER_ENUM_LOCAL |
     *            PRINTER_ENUM_NAME enumerates the local printers that are
     *            installed on the server Name.
     * @param Level
     *            The type of data structures pointed to by pPrinterEnum. Valid
     *            values are 1, 2, 4, and 5, which correspond to the
     *            PRINTER_INFO_1, PRINTER_INFO_2 , PRINTER_INFO_4, and
     *            PRINTER_INFO_5 data structures.
     * @param pPrinterEnum
     *            A pointer to a buffer that receives an array of
     *            PRINTER_INFO_1, PRINTER_INFO_2, PRINTER_INFO_4, or
     *            PRINTER_INFO_5 structures. Each structure contains data that
     *            describes an available print object. If Level is 1, the array
     *            contains PRINTER_INFO_1 structures. If Level is 2, the array
     *            contains PRINTER_INFO_2 structures. If Level is 4, the array
     *            contains PRINTER_INFO_4 structures. If Level is 5, the array
     *            contains PRINTER_INFO_5 structures. The buffer must be large
     *            enough to receive the array of data structures and any strings
     *            or other data to which the structure members point. If the
     *            buffer is too small, the pcbNeeded parameter returns the
     *            required buffer size.
     * @param cbBuf
     *            The size, in bytes, of the buffer pointed to by pPrinterEnum.
     * @param pcbNeeded
     *            A pointer to a value that receives the number of bytes copied
     *            if the function succeeds or the number of bytes required if
     *            cbBuf is too small.
     * @param pcReturned
     *            A pointer to a value that receives the number of
     *            PRINTER_INFO_1, PRINTER_INFO_2 , PRINTER_INFO_4, or
     *            PRINTER_INFO_5 structures that the function returns in the
     *            array to which pPrinterEnum points.
     * @return If the function succeeds, the return value is a nonzero value. If
     *         the function fails, the return value is zero.
     *
     * @see 
     *      EnumPrinters function
     */
    boolean EnumPrinters(int Flags, String Name, int Level,
            Pointer pPrinterEnum, int cbBuf, IntByReference pcbNeeded,
            IntByReference pcReturned);

    /**
     * The GetPrinter function retrieves information about a specified printer.
     *
     * @param hPrinter A handle to the printer for which the function retrieves
     *                  information. Use the OpenPrinter or AddPrinter function
     *                  to retrieve a printer handle.
     * @param Level The level or type of structure that the function stores
     *                  into the buffer pointed to by pPrinter. This value can
     *                  be 1, 2, 3, 4, 5, 6, 7, 8 or 9.
     * @param pPrinter A pointer to a buffer that receives a structure
     *                  containing information about the specified printer. The
     *                  buffer must be large enough to receive the structure and
     *                  any strings or other data to which the structure members
     *                  point. If the buffer is too small, the pcbNeeded
     *                  parameter returns the required buffer size. The type of
     *                  structure is determined by the value of Level.
     * @param cbBuf The size, in bytes, of the buffer pointed to by
     *                  pPrinter.
     * @param pcbNeeded A pointer to a variable that the function sets to the
     *                  size, in bytes, of the printer information. If cbBuf is
     *                  smaller than this value, GetPrinter fails, and the value
     *                  represents the required buffer size. If cbBuf is equal
     *                  to or greater than this value, GetPrinter succeeds, and
     *                  the value represents the number of bytes stored in the
     *                  buffer.
     *
     * @return If the function succeeds, the return value is a nonzero value. If
     *         the function fails, the return value is zero.
     *
     * @see 
     * GetPrinter function
     */
    boolean GetPrinter(HANDLE hPrinter, int Level, Pointer pPrinter, int cbBuf, IntByReference pcbNeeded);

    /**
     * The PRINTER_INFO_1 structure specifies general printer information.
     *
     * @see 
     * PRINTER_INFO_1 structure
     */
    @FieldOrder({"Flags", "pDescription", "pName", "pComment"})
    public static class PRINTER_INFO_1 extends Structure {

        /**
         * Specifies information about the returned data. Following are the
         * values for this member.
         */
        public int Flags;
        /**
         * Pointer to a null-terminated string that describes the contents of
         * the structure.
         */
        public String pDescription;
        /**
         * Pointer to a null-terminated string that names the contents of the
         * structure.
         */
        public String pName;
        /**
         * Pointer to a null-terminated string that contains additional data
         * describing the structure.
         */
        public String pComment;

        public PRINTER_INFO_1() {
            super();
        }

        public PRINTER_INFO_1(int size) {
            super(new Memory(size));
        }
    }

    /**
     * The PRINTER_INFO_2 structure specifies detailed printer information.
     *
     * @author Ivan Ridao Freitas, Padrus
     * @see 
     * PRINTER_INFO_2 structure
     */
    @FieldOrder({"pServerName", "pPrinterName", "pShareName",
        "pPortName", "pDriverName", "pComment", "pLocation", "pDevMode", "pSepFile", "pPrintProcessor",
        "pDatatype", "pParameters", "pSecurityDescriptor", "Attributes", "Priority", "DefaultPriority",
        "StartTime", "UntilTime", "Status", "cJobs", "AveragePPM"})
    public static class PRINTER_INFO_2 extends Structure {

        /**
         * A pointer to a null-terminated string identifying the server that
         * controls the printer. If this string is NULL, the printer is
         * controlled locally.
         */
        public String pServerName;
        /**
         * A pointer to a null-terminated string that specifies the name of the
         * printer.
         */
        public String pPrinterName;
        /**
         * A pointer to a null-terminated string that identifies the share point
         * for the printer. (This string is used only if the
         * PRINTER_ATTRIBUTE_SHARED constant was set for the Attributes member.)
         */
        public String pShareName;
        /**
         * A pointer to a null-terminated string that identifies the port(s)
         * used to transmit data to the printer. If a printer is connected to
         * more than one port, the names of each port must be separated by
         * commas (for example, "LPT1:,LPT2:,LPT3:").
         */
        public String pPortName;
        /**
         * A pointer to a null-terminated string that specifies the name of the
         * printer driver.
         */
        public String pDriverName;
        /**
         * A pointer to a null-terminated string that provides a brief
         * description of the printer.
         */
        public String pComment;
        /**
         * A pointer to a null-terminated string that specifies the physical
         * location of the printer (for example, "Bldg. 38, Room 1164").
         */
        public String pLocation;
        /**
         * A pointer to a DEVMODE structure that defines default printer data
         * such as the paper orientation and the resolution.
         */
        public INT_PTR pDevMode;
        /**
         * A pointer to a null-terminated string that specifies the name of the
         * file used to create the separator page. This page is used to separate
         * print jobs sent to the printer.
         */
        public String pSepFile;
        /**
         * A pointer to a null-terminated string that specifies the name of the
         * print processor used by the printer. You can use the
         * EnumPrintProcessors function to obtain a list of print processors
         * installed on a server.
         */
        public String pPrintProcessor;
        /**
         * A pointer to a null-terminated string that specifies the data type
         * used to record the print job. You can use the
         * EnumPrintProcessorDatatypes function to obtain a list of data types
         * supported by a specific print processor.
         */
        public String pDatatype;
        /**
         * A pointer to a null-terminated string that specifies the default
         * print-processor parameters.
         */
        public String pParameters;
        /**
         * A pointer to a SECURITY_DESCRIPTOR structure for the printer. This
         * member may be NULL.
         */
        public INT_PTR pSecurityDescriptor;
        /**
         * The printer attributes. This member can be any reasonable combination
         * of the values PRINTER_ATTRIBUTE_XXX.
         */
        public int Attributes;
        /**
         * A priority value that the spooler uses to route print jobs.
         */
        public int Priority;
        /**
         * The default priority value assigned to each print job.
         */
        public int DefaultPriority;
        /**
         * The earliest time at which the printer will print a job. This value
         * is expressed as minutes elapsed since 12:00 AM GMT (Greenwich Mean
         * Time).
         */
        public int StartTime;
        /**
         * The latest time at which the printer will print a job. This value is
         * expressed as minutes elapsed since 12:00 AM GMT (Greenwich Mean
         * Time).
         */
        public int UntilTime;
        /**
         * The printer status. This member can be any reasonable combination of
         * the values PRINTER_STATUS_XXX.
         */
        public int Status;
        /**
         * The number of print jobs that have been queued for the printer.
         */
        public int cJobs;
        /**
         * The average number of pages per minute that have been printed on the
         * printer.
         */
        public int AveragePPM;

        public PRINTER_INFO_2() {
            super();
        }

        public PRINTER_INFO_2(int size) {
            super(new Memory(size));
        }

        /**
         * Checks if the printer attributes have one of the values
         * PRINTER_ATTRIBUTE_XXX.
         */
        public boolean hasAttribute(int value) {
            return (Attributes & value) == value;
        }
    }

    /**
     * The PRINTER_INFO_4 structure specifies general printer information.
     * 

* The structure can be used to retrieve minimal printer information on a * call to EnumPrinters. Such a call is a fast and easy way to retrieve the * names and attributes of all locally installed printers on a system and * all remote printer connections that a user has established. * * @see * PRINTER_INFO_4 structure */ @FieldOrder({"pPrinterName", "pServerName", "Attributes"}) public static class PRINTER_INFO_4 extends Structure { /** * Pointer to a null-terminated string that specifies the name of the * printer (local or remote). */ public String pPrinterName; /** * Pointer to a null-terminated string that is the name of the server. */ public String pServerName; /** * Specifies information about the returned data. */ public DWORD Attributes; public PRINTER_INFO_4() { super(); } public PRINTER_INFO_4(int size) { super(new Memory(size)); } } /** * The PRINTER_DEFAULTS structure specifies the default data type, * environment, initialization data, and access rights for a printer. * * @see PRINTER_DEFAULTS structure */ @FieldOrder({"pDatatype", "pDevMode", "DesiredAccess"}) public class LPPRINTER_DEFAULTS extends Structure { /** * Pointer to a null-terminated string that specifies the default data * type for a printer. */ public String pDatatype; /** * Pointer to a DEVMODE structure that identifies the default * environment and initialization data for a printer. */ public Pointer pDevMode; /** * Specifies desired access rights for a printer. The OpenPrinter * function uses this member to set access rights to the printer. These * rights can affect the operation of the SetPrinter and DeletePrinter * functions. */ public int DesiredAccess; } /** * The OpenPrinter function retrieves a handle to the specified printer or * print server or other types of handles in the print subsystem. * * @param pPrinterName * [in] A pointer to a null-terminated string that specifies the * name of the printer or print server, the printer object, the * XcvMonitor, or the XcvPort. For a printer object use: * PrinterName, Job xxxx. For an XcvMonitor, use: ServerName, * XcvMonitor MonitorName. For an XcvPort, use: ServerName, * XcvPort PortName. If NULL, it indicates the local printer * server. * @param phPrinter * [out] A pointer to a variable that receives a handle (not * thread safe) to the open printer or print server object. The * phPrinter parameter can return an Xcv handle for use with the * XcvData function. For more information about XcvData, see the * DDK. * @param pDefault * [in] A pointer to a PRINTER_DEFAULTS structure. This value can * be NULL. * @return If the function succeeds, the return value is a nonzero value. If * the function fails, the return value is zero. * * @see OpenPrinter function */ boolean OpenPrinter( // _In_ String pPrinterName, // _Out_ HANDLEByReference phPrinter, // _In_ LPPRINTER_DEFAULTS pDefault); /** * The ClosePrinter function closes the specified printer object.
* Note This is a blocking or synchronous function and might not return * immediately.
* How quickly this function returns depends on run-time factors such as * network status, print server configuration, and printer driver * implementation-factors that are difficult to predict when writing an * application. Calling this function from a thread that manages interaction * with the user interface could make the application appear to be * unresponsive. *

* When the ClosePrinter function returns, the handle hPrinter is invalid, * regardless of whether the function has succeeded or failed. * * @param hPrinter A handle to the printer object to be closed. This handle * is returned by the OpenPrinter or AddPrinter function. * * @return If the function succeeds, the return value is a nonzero value. If * the function fails, the return value is zero. * * @see * ClosePrinter function */ boolean ClosePrinter(HANDLE hPrinter); /** * The FindFirstPrinterChangeNotification function creates a change * notification object and returns a handle to the object. You can then use * this handle in a call to one of the wait functions to monitor changes to * the printer or print server. The FindFirstPrinterChangeNotification call * specifies the type of changes to be monitored. You can specify a set of * conditions to monitor for changes, a set of printer information fields to * monitor, or both. A wait operation on the change notification handle * succeeds when one of the specified changes occurs in the specified * printer or print server. You then call the * FindNextPrinterChangeNotification function to retrieve information about * the change, and to reset the change notification object for use in the * next wait operation. * * @param hPrinter * [in] A handle to the printer or print server that you want to * monitor. Use the OpenPrinter or AddPrinter function to * retrieve a printer handle. * @param fdwFilter * The conditions that will cause the change notification object * to enter a signaled state. A change notification occurs when * one or more of the specified conditions are met. The fdwFilter * parameter can be zero if pPrinterNotifyOptions is non-NULL. * * @param fdwOptions * Reserved; must be zero. * @param pPrinterNotifyOptions * [in, optional] A pointer to a PRINTER_NOTIFY_OPTIONS * structure. The pTypes member of this structure is an array of * one or more PRINTER_NOTIFY_OPTIONS_TYPE structures, each of which * specifies a printer information field to monitor. A change * notification occurs when one or more of the specified fields * changes. When a change occurs, the * FindNextPrinterChangeNotification function can retrieve the * new printer information. This parameter can be NULL if * fdwFilter is nonzero. For a list of fields that can be * monitored, see PRINTER_NOTIFY_OPTIONS_TYPE. * * @return If the function succeeds, the return value is a handle to a * change notification object associated with the specified printer * or print server. If the function fails, the return value is * INVALID_HANDLE_VALUE. * * @see * FindFirstPrinterChangeNotification function */ HANDLE FindFirstPrinterChangeNotification( // _In_ HANDLE hPrinter, int fdwFilter, int fdwOptions, // _In_opt_ LPVOID pPrinterNotifyOptions); /** * The FindNextPrinterChangeNotification function retrieves information * about the most recent change notification for a change notification * object associated with a printer or print server. Call this function when * a wait operation on the change notification object is satisfied. The * function also resets the change notification object to the not-signaled * state. You can then use the object in another wait operation to continue * monitoring the printer or print server. The operating system will set the * object to the signaled state the next time one of a specified set of * changes occurs to the printer or print server. The * FindFirstPrinterChangeNotification function creates the change * notification object and specifies the set of changes to be monitored. * * @param hChange * [in] A handle to a change notification object associated with * a printer or print server. You obtain such a handle by calling * the FindFirstPrinterChangeNotification function. The operating * system sets this change notification object to the signaled * state when it detects one of the changes specified in the * object's change notification filter. * @param pdwChange * [out, optional] A pointer to a variable whose bits are set to * indicate the changes that occurred to cause the most recent * notification. The bit flags that might be set correspond to * those specified in the fdwFilter parameter of the * FindFirstPrinterChangeNotification call. The system sets one * or more of the following bit flags. * * @param pPrinterNotifyOptions * [in, optional] A pointer to a PRINTER_NOTIFY_OPTIONS * structure. Set the Flags member of this structure to * PRINTER_NOTIFY_OPTIONS_REFRESH, to cause the function to * return the current data for all monitored printer information * fields. The function ignores all other members of the * structure. This parameter can be NULL. * * @param ppPrinterNotifyInfo * [out, optional] A pointer to a pointer variable that receives * a pointer to a system-allocated, read-only buffer. Call the * FreePrinterNotifyInfo function to free the buffer when you are * finished with it. This parameter can be NULL if no information * is required. The buffer contains a PRINTER_NOTIFY_INFO * structure, which contains an array of PRINTER_NOTIFY_INFO_DATA * structures. Each element of the array contains information * about one of the fields specified in the pPrinterNotifyOptions * parameter of the FindFirstPrinterChangeNotification call. * Typically, the function provides data only for the fields that * changed to cause the most recent notification. However, if the * structure pointed to by the pPrinterNotifyOptions parameter * specifies PRINTER_NOTIFY_OPTIONS_REFRESH, the function * provides data for all monitored fields. If the * PRINTER_NOTIFY_INFO_DISCARDED bit is set in the Flags member * of the PRINTER_NOTIFY_INFO structure, an overflow or error * occurred, and notifications may have been lost. In this case, * no additional notifications will be sent until you make a * second FindNextPrinterChangeNotification call that specifies * PRINTER_NOTIFY_OPTIONS_REFRESH. * * @return If the function succeeds, the return value is a nonzero value. If * the function fails, the return value is zero. * * @see * FindClosePrinterChangeNotification function */ boolean FindNextPrinterChangeNotification( // _In_ HANDLE hChange, // _Out_opt_ DWORDByReference pdwChange, // _In_opt_ LPVOID pPrinterNotifyOptions, // _Out_opt_ LPVOID ppPrinterNotifyInfo); /** * The FindClosePrinterChangeNotification function closes a change * notification object created by calling the * FindFirstPrinterChangeNotification function. The printer or print server * associated with the change notification object will no longer be * monitored by that object. * * @param hChange * [in] A handle to the change notification object to be closed. * This is a handle created by calling the * FindFirstPrinterChangeNotification function. * * @return If the function succeeds, the return value is a nonzero value. If * the function fails, the return value is zero. * * @see * FindClosePrinterChangeNotification function */ boolean FindClosePrinterChangeNotification( // _In_ HANDLE hChange); /** * The EnumJobs function retrieves information about a specified set of * print jobs for a specified printer. * * @param hPrinter A handle to the printer object whose print jobs the * function enumerates. Use the OpenPrinter or AddPrinter * function to retrieve a printer handle. * @param FirstJob The zero-based position within the print queue of the * first print job to enumerate. For example, a value of 0 * specifies that enumeration should begin at the first * print job in the print queue; a value of 9 specifies * that enumeration should begin at the tenth print job in * the print queue. * @param NoJobs The total number of print jobs to enumerate. * @param Level The type of information returned in the pJob buffer. * @param pJob A pointer to a buffer that receives an array of * JOB_INFO_1, JOB_INFO_2, or JOB_INFO_3 structures. The * buffer must be large enough to receive the array of * structures and any strings or other data to which the * structure members point. * @param cbBuf The size, in bytes, of the pJob buffer. * @param pcbNeeded A pointer to a variable that receives the number of * bytes copied if the function succeeds. If the function * fails, the variable receives the number of bytes * required. * @param pcReturned A pointer to a variable that receives the number of * JOB_INFO_1, JOB_INFO_2, or JOB_INFO_3 structures * returned in the pJob buffer. * * @return If the function succeeds, the return value is a nonzero value. If * the function fails, the return value is zero. * * @see * EnumJobs function */ boolean EnumJobs( // _In_ HANDLE hPrinter, // _In_ int FirstJob, // _In_ int NoJobs, // _In_ int Level, // _Out_ Pointer pJob, // _In_ int cbBuf, // _Out_ IntByReference pcbNeeded, // _Out_ IntByReference pcReturned); /** * The JOB_INFO_1 structure specifies print-job information such as the * job-identifier value, the name of the printer for which the job is * spooled, the name of the machine that created the print job, the name of * the user that owns the print job, and so on. * * @see * JOB_INFO_1 structure */ @FieldOrder({"JobId", "pPrinterName", "pMachineName", "pUserName", "pDocument", "pDatatype", "pStatus", "Status", "Priority", "Position", "TotalPages", "PagesPrinted", "Submitted"}) public static class JOB_INFO_1 extends Structure { /** * A job identifier. */ public int JobId; /** * A pointer to a null-terminated string that specifies the name of the * printer for which the job is spooled. */ public String pPrinterName; /** * A pointer to a null-terminated string that specifies the name of the * machine that created the print job. */ public String pMachineName; /** * A pointer to a null-terminated string that specifies the name of the * user that owns the print job. */ public String pUserName; /** * A pointer to a null-terminated string that specifies the name of the * print job (for example, "MS-WORD: Review.doc"). */ public String pDocument; /** * A pointer to a null-terminated string that specifies the type of data * used to record the print job. */ public String pDatatype; /** * A pointer to a null-terminated string that specifies the status of * the print job. This member should be checked prior to Status and, if * pStatus is NULL, the status is defined by the contents of the Status * member. */ public String pStatus; /** * The job status. The value of this member can be zero or a combination * of one or more of the following values. A value of zero indicates * that the print queue was paused after the document finished spooling. */ public int Status; /** * The job priority. This member can be one of the following values or * in the range between 1 through 99 (MIN_PRIORITY through * MAX_PRIORITY). */ public int Priority; /** * The job's position in the print queue. */ public int Position; /** * The total number of pages that the document contains. This value may * be zero if the print job does not contain page delimiting * information. */ public int TotalPages; /** * The number of pages that have printed. This value may be zero if the * print job does not contain page delimiting information. */ public int PagesPrinted; /** * A SYSTEMTIME structure that specifies the time that this document was * spooled. *

* This time value is in Universal Time Coordinate (UTC) format. You * should convert it to a local time value before displaying it. You can * use the FileTimeToLocalFileTime function to perform the conversion. */ public SYSTEMTIME Submitted; public JOB_INFO_1() { super(); } public JOB_INFO_1(int size) { super(new Memory(size)); } } }





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