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Java Native Access Platform
/* 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.platform.win32.WinNT.HANDLEByReference;
import com.sun.jna.platform.win32.Winspool.JOB_INFO_1;
import com.sun.jna.platform.win32.Winspool.PRINTER_INFO_1;
import com.sun.jna.platform.win32.Winspool.PRINTER_INFO_2;
import com.sun.jna.platform.win32.Winspool.PRINTER_INFO_4;
import com.sun.jna.ptr.IntByReference;
/**
* Winspool Utility API.
*
* @author dblock[at]dblock.org, Ivan Ridao Freitas, Padrus
*/
public abstract class WinspoolUtil {
public static PRINTER_INFO_1[] getPrinterInfo1() {
IntByReference pcbNeeded = new IntByReference();
IntByReference pcReturned = new IntByReference();
Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL, null, 1,
null, 0, pcbNeeded, pcReturned);
if (pcbNeeded.getValue() <= 0) {
return new PRINTER_INFO_1[0];
}
PRINTER_INFO_1 pPrinterEnum = new PRINTER_INFO_1(pcbNeeded.getValue());
if (!Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL, null,
1, pPrinterEnum.getPointer(), pcbNeeded.getValue(), pcbNeeded,
pcReturned)) {
throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
}
pPrinterEnum.read();
return (PRINTER_INFO_1[]) pPrinterEnum.toArray(pcReturned.getValue());
}
public static PRINTER_INFO_2[] getPrinterInfo2() {
return getPrinterInfo2(Winspool.PRINTER_ENUM_LOCAL);
}
/**
* Returns printers that are physically attached to the local machine as
* well as remote printers to which it has a network connection.
*/
public static PRINTER_INFO_2[] getAllPrinterInfo2() {
// 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.
// See https://msdn.microsoft.com/en-us/library/windows/desktop/dd162692(v=vs.85).aspx
return getPrinterInfo2(Winspool.PRINTER_ENUM_LOCAL | Winspool.PRINTER_ENUM_CONNECTIONS);
}
private static PRINTER_INFO_2[] getPrinterInfo2(int flags) {
IntByReference pcbNeeded = new IntByReference();
IntByReference pcReturned = new IntByReference();
Winspool.INSTANCE.EnumPrinters(flags, null, 2, null, 0, pcbNeeded, pcReturned);
if (pcbNeeded.getValue() <= 0) {
return new PRINTER_INFO_2[0];
}
PRINTER_INFO_2 pPrinterEnum = new PRINTER_INFO_2(pcbNeeded.getValue());
if (!Winspool.INSTANCE.EnumPrinters(flags, null, 2, pPrinterEnum.getPointer(), pcbNeeded.getValue(), pcbNeeded,
pcReturned)) {
throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
}
pPrinterEnum.read();
return (PRINTER_INFO_2[]) pPrinterEnum.toArray(pcReturned.getValue());
}
public static PRINTER_INFO_2 getPrinterInfo2(String printerName) {
IntByReference pcbNeeded = new IntByReference();
IntByReference pcReturned = new IntByReference();
HANDLEByReference pHandle = new HANDLEByReference();
if (!Winspool.INSTANCE.OpenPrinter(printerName, pHandle, null)) {
throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
}
Win32Exception we = null;
PRINTER_INFO_2 pinfo2 = null;
try {
Winspool.INSTANCE.GetPrinter(pHandle.getValue(), 2, null, 0, pcbNeeded);
if (pcbNeeded.getValue() <= 0) {
return new PRINTER_INFO_2();
}
pinfo2 = new PRINTER_INFO_2(pcbNeeded.getValue());
if (!Winspool.INSTANCE.GetPrinter(pHandle.getValue(), 2, pinfo2.getPointer(), pcbNeeded.getValue(), pcReturned)) {
throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
}
pinfo2.read();
} catch (Win32Exception e) {
we = e;
} finally {
if (!Winspool.INSTANCE.ClosePrinter(pHandle.getValue())) {
Win32Exception ex = new Win32Exception(Kernel32.INSTANCE.GetLastError());
if (we != null) {
ex.addSuppressedReflected(we);
}
}
}
if (we != null) {
throw we;
}
return pinfo2;
}
public static PRINTER_INFO_4[] getPrinterInfo4() {
IntByReference pcbNeeded = new IntByReference();
IntByReference pcReturned = new IntByReference();
Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL, null, 4,
null, 0, pcbNeeded, pcReturned);
if (pcbNeeded.getValue() <= 0) {
return new PRINTER_INFO_4[0];
}
PRINTER_INFO_4 pPrinterEnum = new PRINTER_INFO_4(pcbNeeded.getValue());
if (!Winspool.INSTANCE.EnumPrinters(Winspool.PRINTER_ENUM_LOCAL, null,
4, pPrinterEnum.getPointer(), pcbNeeded.getValue(), pcbNeeded,
pcReturned)) {
throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
}
pPrinterEnum.read();
return (PRINTER_INFO_4[]) pPrinterEnum.toArray(pcReturned.getValue());
}
public static JOB_INFO_1[] getJobInfo1(HANDLEByReference phPrinter) {
IntByReference pcbNeeded = new IntByReference();
IntByReference pcReturned = new IntByReference();
Winspool.INSTANCE.EnumJobs(phPrinter.getValue(), 0, 255, 1, null, 0,
pcbNeeded, pcReturned);
if (pcbNeeded.getValue() <= 0) {
return new JOB_INFO_1[0];
}
JOB_INFO_1 pJobEnum = new JOB_INFO_1(pcbNeeded.getValue());
if (!Winspool.INSTANCE.EnumJobs(phPrinter.getValue(), 0, 255, 1,
pJobEnum.getPointer(), pcbNeeded.getValue(), pcbNeeded,
pcReturned)) {
throw new Win32Exception(Kernel32.INSTANCE.GetLastError());
}
pJobEnum.read();
return (JOB_INFO_1[]) pJobEnum.toArray(pcReturned.getValue());
}
}