Data CD Writer (138K)
27 Jun 2004
First Posted
Image Mastering API (IMAPI) Wrapper for .NET
vbAccelerator - Contents of code file: DataCDWriterCS\frmDataCDCreator.cs
This file is part of the download Data CD Writer, which is described in the article Writing Data CDs.
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.IO;
using System.Threading;
using vbAccelerator.Components.ImapiWrapper;
using vbAccelerator.Components.Shell;
namespace DataCDWriter
{
/// <summary>
/// Summary description for frmDataCDCreator.
/// </summary>
public class frmDataCDCreator : System.Windows.Forms.Form
{
private DiscMaster discMaster = null;
private JolietDiscMaster jolietDiscMaster = null;
private bool cancel = false;
private bool burnInProgress = false;
private DataCDCreator creator = null;
private CreateCDDelegate createCDHandler = null;
private System.Windows.Forms.StatusBar sbrMain;
private System.Windows.Forms.Label lblRecorder;
private System.Windows.Forms.ComboBox cboRecorder;
private System.Windows.Forms.CheckBox chkEjectWhenComplete;
private System.Windows.Forms.CheckBox chkSimulate;
private System.Windows.Forms.Button btnBurn;
private System.Windows.Forms.CheckBox chkOverwrite;
private System.Windows.Forms.Label lblFolder;
private System.Windows.Forms.TextBox txtFolder;
private System.Windows.Forms.Button btnBrowse;
private System.Windows.Forms.Label label1;
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.Container components = null;
public frmDataCDCreator()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
Application.ThreadException += new
ThreadExceptionEventHandler(application_ThreadException);
Show();
Refresh();
// Create the disc master object and initialse the recorder list:
GetRecorders();
// Attach all of the events:
discMaster.AddProgress += new
ProgressEventHandler(discMaster_AddProgress);
discMaster.BlockProgress += new
ProgressEventHandler(discMaster_BlockProgress);
discMaster.BurnComplete += new
CompletionStatusEventHandler(discMaster_BurnComplete);
discMaster.ClosingDisc += new
EstimatedTimeOperationEventHandler(discMaster_ClosingDisc);
discMaster.EraseComplete += new
CompletionStatusEventHandler(discMaster_EraseComplete);
discMaster.PnPActivity += new EventHandler(discMaster_PnPActivity);
discMaster.PreparingBurn += new
EstimatedTimeOperationEventHandler(discMaster_PreparingBurn);
discMaster.QueryCancel += new
QueryCancelEventHandler(discMaster_QueryCancel);
discMaster.TrackProgress += new
ProgressEventHandler(discMaster_TrackProgress);
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
jolietDiscMaster.Dispose();
discMaster.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()
{
System.Resources.ResourceManager resources = new
System.Resources.ResourceManager(typeof(frmDataCDCreator));
this.sbrMain = new System.Windows.Forms.StatusBar();
this.lblRecorder = new System.Windows.Forms.Label();
this.cboRecorder = new System.Windows.Forms.ComboBox();
this.chkEjectWhenComplete = new System.Windows.Forms.CheckBox();
this.chkSimulate = new System.Windows.Forms.CheckBox();
this.btnBurn = new System.Windows.Forms.Button();
this.chkOverwrite = new System.Windows.Forms.CheckBox();
this.lblFolder = new System.Windows.Forms.Label();
this.txtFolder = new System.Windows.Forms.TextBox();
this.btnBrowse = new System.Windows.Forms.Button();
this.label1 = new System.Windows.Forms.Label();
this.SuspendLayout();
//
// sbrMain
//
this.sbrMain.Location = new System.Drawing.Point(0, 246);
this.sbrMain.Name = "sbrMain";
this.sbrMain.Size = new System.Drawing.Size(500, 20);
this.sbrMain.TabIndex = 13;
//
// lblRecorder
//
this.lblRecorder.Font = new System.Drawing.Font("Tahoma", 8.25F,
System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point,
((System.Byte)(0)));
this.lblRecorder.Location = new System.Drawing.Point(8, 12);
this.lblRecorder.Name = "lblRecorder";
this.lblRecorder.Size = new System.Drawing.Size(76, 16);
this.lblRecorder.TabIndex = 14;
this.lblRecorder.Text = "&Recorder:";
//
// cboRecorder
//
this.cboRecorder.DropDownStyle =
System.Windows.Forms.ComboBoxStyle.DropDownList;
this.cboRecorder.Location = new System.Drawing.Point(88, 8);
this.cboRecorder.Name = "cboRecorder";
this.cboRecorder.Size = new System.Drawing.Size(404, 21);
this.cboRecorder.TabIndex = 15;
this.cboRecorder.SelectedIndexChanged += new
System.EventHandler(this.cboRecorder_SelectedIndexChanged);
//
// chkEjectWhenComplete
//
this.chkEjectWhenComplete.Checked = true;
this.chkEjectWhenComplete.CheckState =
System.Windows.Forms.CheckState.Checked;
this.chkEjectWhenComplete.FlatStyle =
System.Windows.Forms.FlatStyle.System;
this.chkEjectWhenComplete.Location = new System.Drawing.Point(184,
208);
this.chkEjectWhenComplete.Name = "chkEjectWhenComplete";
this.chkEjectWhenComplete.Size = new System.Drawing.Size(236, 16);
this.chkEjectWhenComplete.TabIndex = 18;
this.chkEjectWhenComplete.Text = "&Eject When Complete";
//
// chkSimulate
//
this.chkSimulate.Checked = true;
this.chkSimulate.CheckState = System.Windows.Forms.CheckState.Checked;
this.chkSimulate.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.chkSimulate.Location = new System.Drawing.Point(184, 188);
this.chkSimulate.Name = "chkSimulate";
this.chkSimulate.Size = new System.Drawing.Size(236, 16);
this.chkSimulate.TabIndex = 17;
this.chkSimulate.Text = "&Simulate";
//
// btnBurn
//
this.btnBurn.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.btnBurn.Location = new System.Drawing.Point(92, 188);
this.btnBurn.Name = "btnBurn";
this.btnBurn.Size = new System.Drawing.Size(88, 24);
this.btnBurn.TabIndex = 16;
this.btnBurn.Text = "&Burn";
this.btnBurn.Click += new System.EventHandler(this.btnBurn_Click);
//
// chkOverwrite
//
this.chkOverwrite.Checked = true;
this.chkOverwrite.CheckState = System.Windows.Forms.CheckState.Checked;
this.chkOverwrite.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.chkOverwrite.Location = new System.Drawing.Point(184, 228);
this.chkOverwrite.Name = "chkOverwrite";
this.chkOverwrite.Size = new System.Drawing.Size(236, 16);
this.chkOverwrite.TabIndex = 19;
this.chkOverwrite.Text = "&Overwrite files on CDRW disc";
//
// lblFolder
//
this.lblFolder.Font = new System.Drawing.Font("Tahoma", 8.25F,
System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point,
((System.Byte)(0)));
this.lblFolder.Location = new System.Drawing.Point(4, 84);
this.lblFolder.Name = "lblFolder";
this.lblFolder.Size = new System.Drawing.Size(76, 16);
this.lblFolder.TabIndex = 20;
this.lblFolder.Text = "&Folder:";
//
// txtFolder
//
this.txtFolder.Location = new System.Drawing.Point(84, 80);
this.txtFolder.Name = "txtFolder";
this.txtFolder.Size = new System.Drawing.Size(400, 21);
this.txtFolder.TabIndex = 21;
this.txtFolder.Text = "";
//
// btnBrowse
//
this.btnBrowse.Location = new System.Drawing.Point(88, 112);
this.btnBrowse.Name = "btnBrowse";
this.btnBrowse.Size = new System.Drawing.Size(92, 24);
this.btnBrowse.TabIndex = 22;
this.btnBrowse.Text = "&Browse...";
this.btnBrowse.Click += new System.EventHandler(this.btnBrowse_Click);
//
// label1
//
this.label1.Location = new System.Drawing.Point(88, 36);
this.label1.Name = "label1";
this.label1.Size = new System.Drawing.Size(396, 44);
this.label1.TabIndex = 23;
this.label1.Text = "Note: this simple demo only allows you to burn a
single folder (and all subfolder" +
"s) from disc. The IMAPI library allows you to burn any source
file to any desti" +
"nation on the disc.";
//
// frmDataCDCreator
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 14);
this.ClientSize = new System.Drawing.Size(500, 266);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.label1,
this.btnBrowse,
this.txtFolder,
this.lblFolder,
this.chkOverwrite,
this.chkEjectWhenComplete,
this.chkSimulate,
this.btnBurn,
this.cboRecorder,
this.lblRecorder,
this.sbrMain});
this.Font = new System.Drawing.Font("Tahoma", 8.25F,
System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point,
((System.Byte)(0)));
this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
this.Name = "frmDataCDCreator";
this.Text = "vbAccelerator Data CD Creator";
this.ResumeLayout(false);
}
#endregion
/// <summary>
/// The main entry point for the application.
/// </summary>
[STAThread]
static void Main()
{
Application.Run(new frmDataCDCreator());
}
private void application_ThreadException(object sender,
ThreadExceptionEventArgs e)
{
MessageBox.Show(this, String.Format("An untrapped exception occurred:
{0}. The application will now close.", e.Exception),
Text, MessageBoxButtons.OK, MessageBoxIcon.Error);
Close();
}
protected override void OnClosing(CancelEventArgs e)
{
// Don't close if burn in progress
if (burnInProgress)
{
e.Cancel = true;
MessageBox.Show(this, "A CD burn is currently in progress. Cancel
the burn before closing this application.",
Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
return;
}
// Clear up:
base.OnClosing(e);
Cursor.Current = Cursors.WaitCursor;
sbrMain.Text = "Closing IMAPI interface...";
jolietDiscMaster.Dispose();
discMaster.Dispose();
Cursor.Current = Cursors.Default;
}
private void GetRecorders()
{
try
{
discMaster = new DiscMaster();
jolietDiscMaster = discMaster.JolietDiscMaster();
foreach (DiscRecorder recorder in discMaster.DiscRecorders)
{
cboRecorder.Items.Add(
new ComboRecorderWrapper(recorder));
}
if (cboRecorder.Items.Count > 0)
{
cboRecorder.SelectedIndex = 0;
}
}
catch (Exception ex)
{
MessageBox.Show(this, String.Format("Unable to initialise the IMAPI
library {0}", ex),
Text, MessageBoxButtons.OK, MessageBoxIcon.Stop);
if (discMaster != null)
{
discMaster.Dispose();
}
}
}
/// <summary>
/// Raised whilst blocks are added to the stash
/// </summary>
/// <param name="sender">Disc master object</param>
/// <param name="e">Progess information</param>
private void discMaster_AddProgress(object sender, ProgressEventArgs e)
{
sbrMain.Text = String.Format("Adding {0} of {1}", e.Completed,
e.Total);
}
/// <summary>
/// Raised whilst blocks are burnt to the disc
/// </summary>
/// <param name="sender">Disc master object</param>
/// <param name="e">Progress information</param>
private void discMaster_BlockProgress(object sender, ProgressEventArgs e)
{
sbrMain.Text = String.Format("Block {0} of {1}", e.Completed, e.Total);
}
/// <summary>
/// Raised when CD burning has completed
/// </summary>
/// <param name="sender">Disc Master object</param>
/// <param name="e">Status information</param>
private void discMaster_BurnComplete(object sender,
CompletionStatusEventArgs e)
{
sbrMain.Text = String.Format("Burn Complete!");
}
/// <summary>
/// Raised as the disc is about to be closed
/// </summary>
/// <param name="sender">Disc Master object</param>
/// <param name="e">Estimated time to close the disc</param>
private void discMaster_ClosingDisc(object sender,
EstimatedTimeOperationEventArgs e)
{
sbrMain.Text = String.Format("Closing disc (estimated time {0}s)...",
e.EstimatedSeconds);
}
/// <summary>
/// Raised when an erase operation completes
/// </summary>
/// <param name="sender">Disc master object</param>
/// <param name="e">Status information</param>
private void discMaster_EraseComplete(object sender,
CompletionStatusEventArgs e)
{
sbrMain.Text = String.Format("Erase Complete!");
}
/// <summary>
/// Raised when a recorder is changed
/// </summary>
/// <param name="sender">Disc master object</param>
/// <param name="e">Not used</param>
private void discMaster_PnPActivity(object sender, EventArgs e)
{
//
}
/// <summary>
/// Raised before a disc is about to be burnt.
/// </summary>
/// <param name="sender">Disc Master object</param>
/// <param name="e">Estimated time before burning begins</param>
private void discMaster_PreparingBurn(object sender,
EstimatedTimeOperationEventArgs e)
{
sbrMain.Text = String.Format("Preparing to burn disc (estimated time
{0}s)...",
e.EstimatedSeconds);
}
/// <summary>
/// Raised to request whether to cancel a stash or burn operation
/// </summary>
/// <param name="sender">Disc Master object</param>
/// <param name="e">Whether to cancel or not</param>
private void discMaster_QueryCancel(object sender, QueryCancelEventArgs e)
{
e.Cancel = cancel;
}
/// <summary>
/// Raised as tracks are burnt to disc
/// </summary>
/// <param name="sender">Disc Master object</param>
/// <param name="e">Track progress</param>
private void discMaster_TrackProgress(object sender, ProgressEventArgs e)
{
if (e.Completed < e.Total)
{
sbrMain.Text = String.Format("Track {0} of {1}", e.Completed + 1,
e.Total);
}
else
{
sbrMain.Text = String.Format("Completed adding last track");
}
}
private void cboRecorder_SelectedIndexChanged(object sender,
System.EventArgs e)
{
if (cboRecorder.SelectedIndex > -1)
{
ComboRecorderWrapper wrapper = (ComboRecorderWrapper)
cboRecorder.SelectedItem;
discMaster.DiscRecorders.ActiveDiscRecorder = wrapper.DiscRecorder;
}
}
private void btnBurn_Click(object sender, System.EventArgs e)
{
if (burnInProgress)
{
cancel = true;
}
else
{
BurnCd(chkSimulate.Checked, chkEjectWhenComplete.Checked,
chkOverwrite.Checked);
}
}
private bool ValidateFolder()
{
string folder = txtFolder.Text;
if (Directory.Exists(folder))
{
return true;
}
else
{
MessageBox.Show(this, "Please choose a valid folder on the file
system to copy from.",
Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
return false;
}
}
/// <summary>
/// Burns the CD asynchronously
/// </summary>
/// <param name="simulate"><c>true</c> to simulate, <c>false</c> to
really burn</param>
/// <param name="ejectWhenComplete"><c>true</c> if the tray should be
ejected once
/// burn has finished.</param>
/// <param name="overwrite"><c>true</c> to overwrite existing files on
the disc.</param>
private void BurnCd(bool simulate, bool ejectWhenComplete, bool overwrite)
{
// If the folder is good
if (ValidateFolder())
{
// Check that we have media:
if (CheckMedia())
{
// Asynchronously invoke the creator
creator = new DataCDCreator(discMaster, jolietDiscMaster);
creator.AddDirectory(txtFolder.Text, true);
createCDHandler = new CreateCDDelegate(creator.CreateCD);
AsyncCallback callback = new AsyncCallback(createCD_Complete);
IAsyncResult ar = createCDHandler.BeginInvoke(
simulate, ejectWhenComplete, overwrite, callback, null);
SetApplicationMode(true);
}
}
}
/// <summary>
/// Called when CD creation completes
/// </summary>
/// <param name="ar">Result of method call (none)</param>
private void createCD_Complete(IAsyncResult ar)
{
SetApplicationMode(false);
createCDHandler.EndInvoke(ar);
}
/// <summary>
/// Sets the application's mode
/// </summary>
/// <param name="burning"><c>true</c> if a burn is in progress</param>
private void SetApplicationMode(bool burning)
{
if (burning)
{
burnInProgress = true;
cancel = false;
btnBurn.Text = "Cancel";
cboRecorder.Enabled = false;
}
else
{
burnInProgress = false;
btnBurn.Text = "&Burn";
cboRecorder.Enabled = true;
}
}
/// <summary>
/// Checks the media in the drive.
/// </summary>
/// <returns></returns>
private bool CheckMedia()
{
bool mediaOk = false;
sbrMain.Text = "Checking media in recorder...";
Cursor.Current = Cursors.WaitCursor;
DiscRecorder recorder = ((ComboRecorderWrapper)
cboRecorder.SelectedItem).DiscRecorder;
recorder.OpenExclusive();
MediaDetails media = recorder.GetMediaDetails();
recorder.CloseExclusive();
Cursor.Current = Cursors.Default;
if (media.MediaPresent)
{
if ((media.MediaFlags & MEDIA_FLAGS.MEDIA_WRITABLE) ==
MEDIA_FLAGS.MEDIA_WRITABLE)
{
sbrMain.Text = "Preparing to burn CD.";
mediaOk = true;
}
else
{
sbrMain.Text = "Media cannot be written to.";
MessageBox.Show(this,
String.Format("The disc in drive {0} ({1}) is either not
blank or cannot be written to.", recorder.DriveLetter,
recorder.PnPID),
Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
}
}
else
{
sbrMain.Text = "No media in drive.";
MessageBox.Show(this,
String.Format("Please insert blank, writable media into drive
{0} ({1})", recorder.DriveLetter, recorder.PnPID),
Text, MessageBoxButtons.OK, MessageBoxIcon.Information);
}
return mediaOk;
}
private void btnBrowse_Click(object sender, System.EventArgs e)
{
using (FolderBrowser f = new FolderBrowser())
{
f.Title = "Choose folder to copy to CD";
f.NewDialogStyle = true;
f.ShowEditBox = true;
f.NoNewFolderButton = true;
if (Directory.Exists(txtFolder.Text))
{
f.InitialPath = txtFolder.Text;
}
f.FileSystemDirectoriesOnly = true;
if (DialogResult.OK == f.ShowDialog(this))
{
txtFolder.Text = f.SelectedPath;
}
}
}
/// <summary>
/// Slight class to wrap a DiscRecorder allowing it to be associated
/// with a combo box.
/// </summary>
class ComboRecorderWrapper
{
private readonly DiscRecorder recorder;
public ComboRecorderWrapper(DiscRecorder recorder)
{
this.recorder = recorder;
}
public DiscRecorder DiscRecorder
{
get
{
return recorder;
}
}
public override string ToString()
{
return String.Format("{0} ({1} {2} {3})",
recorder.DriveLetter, recorder.Vendor, recorder.Product,
recorder.Revision);
}
}
}
}
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