Re: Win AP question

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From: Kevin (anonymous_at_discussions.microsoft.com)
Date: 04/16/04 

Date: Fri, 16 Apr 2004 04:51:02 -0700

OK Tom this is my code so far

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Runtime.InteropServices;

namespace SlyPrintMon
{
        /// <summary>
        /// Summary description for Form1.
        /// </summary>
        ///

        public class Form1 : System.Windows.Forms.Form
        {
//Declare all Constants here
                public const short CCHDEVICENAME = 32;
                public const short CCHFORMNAME = 32;

//end of constant declarations
                
//Declare all structs here
                [StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)]
                public struct PRINTER_DEFAULTS
                {
                        string pDatatype;
                        DEVMODE pDevMode;
                        int DesiredAccess;
                }
                [StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)]
                public struct DEVMODE
                {
                        string dmDeviceName; // * CCHDEVICENAME;
                        short dmSpecVersion;
                        short dmDriverVersion;
                        short dmSize;
                        short dmDriverExtra ;
                        int dmFields;
                        short dmOrientation;
                        short dmPaperSize;
                        short dmPaperLength;
                        short dmPaperWidth;
                        short dmScale;
                        short dmCopies;
                        short dmDefaultSource;
                        short dmPrintQuality;
                        short dmColor;
                        short dmDuplex;
                        short dmYResolution;
                        short dmTTOption;
                        short dmCollate;
                        string dmFormName; // * CCHFORMNAME;
                        short dmUnusedPadding;
                        int dmBitsPerPel;
                        int dmPelsWidth;
                        int dmPelsHeight;
                        int dmDisplayFlags;
                        int dmDisplayFrequency;
                }

                [StructLayout(LayoutKind.Sequential,CharSet=CharSet.Auto)]
                public struct JOB_INFO_1
                {
                        public int JobId;
                        public string pPrinterName;
                        public string pMachineName;
                        public string pUserName;
                        public string pDocument;
                        public string pDatatype;
                        public string pStatus;
                        public int Status;
                        public int Priority;
                        public int Position;
                        public int TotalPages;
                        public int PagesPrinted;
                        public SYSTEMTIME Submitted;
                }

        [StructLayout(LayoutKind.Sequential)]
        public struct SYSTEMTIME
                {
                        public short wYear;
                        public short wMonth;
                        public short wDayOfWeek;
                        public short wDay;
                        public short wHour;
                        public short wMinute;
                        public short wSecond;
                        public short wMilliseconds;
                }

//end of struct declarations

                private System.ComponentModel.IContainer components;
                [DllImport("winspool.drv",CharSet=CharSet.Auto)]
                public static extern int OpenPrinter(string pPrinterName, out System.IntPtr phPrinter, PRINTER_DEFAULTS pd);
                [DllImport("winspool.drv")]
                public static extern int ClosePrinter(int hPrinter);
                [DllImport("winspool.drv",CharSet=CharSet.Auto)]
                public static extern int EnumJobs(int hPrinter,int FirstJob,int NoJobs,int Level,ref JOB_INFO_1 jInfo,int cdBuf,out int pcbNeeded,out int pcReturned );

                public Form1()
                {
                        //
                        // Required for Windows Form Designer support
                        //
                        InitializeComponent();
                        System.IntPtr hPrinter;
                        int lNeeded =0 ;
                        int lReturned = 0 ;

                        
                        PRINTER_DEFAULTS pDef = new PRINTER_DEFAULTS();
                        OpenPrinter("OPTRAE",out hPrinter,pDef);
                        JOB_INFO_1 jInfo = new JOB_INFO_1();
                        EnumJobs((int)hPrinter,0,99,1,ref jInfo,0,out lNeeded, out lReturned);
                        if (lNeeded>0)
                        {
                                EnumJobs((int)hPrinter,0,99,1,ref jInfo, lNeeded, out lNeeded,out lReturned);
                                Console.WriteLine(jInfo.pUserName + " : " + jInfo.TotalPages);

                        }
                        

                        //
                        // TODO: Add any constructor code after InitializeComponent call
                        //
                }

                /// <summary>
                /// Clean up any resources being used.
                /// </summary>
                protected override void Dispose( bool disposing )
                {
                        if( disposing )
                        {
                                if (components != null)
                                {
                                        components.Dispose();
                                }
                        }
                        base.Dispose( disposing );
                }

                #region Windows Form Designer generated code
                /// <summary>
                /// Required method for Designer support - do not modify
                /// the contents of this method with the code editor.
                /// </summary>
                private void InitializeComponent()
                {
                        this.components = new System.ComponentModel.Container();

                        //
                        // Form1
                        //
                        this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
                        this.ClientSize = new System.Drawing.Size(488, 357);
                        this.Name = "Form1";
                        this.Text = "Form1";

                }
                #endregion

                /// <summary>
                /// The main entry point for the application.
                /// </summary>
                [STAThread]
                static void Main()
                {
                        Application.Run(new Form1());
                }

        }
}

Now when I run it I can't even get it to give me a handle to the printer:( the hPrinter variable just stays at 0

Any suggestions?

Kevin