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Crash on Chrome when writing file on Webgl

In Unity3d Webgl I download and write big file (about 100 mb and more) to cache (indexeddb).
I downloaded file with UnityWebRequest and write file in downloadHandler.
Sometimes after call filestream.Write() or filestream.Flush() Chrome will crash.
Exception not available, only crash tab of chrome.
Crash happens abount in 50 percent of dowloads.
public class Downloader : MonoBehaviour
{
public IEnumerator DownloadFileCoroutine(string url, string filePath, string clientName, int fileId, Action<int> downloadedCallback)
{
var currentWebRequest = UnityWebRequest.Get(url);
currentWebRequest.downloadHandler = new ToFileDownloadHandler(new byte[64 * 1024], filePath);
var downloadHendler = (currentWebRequest.downloadHandler as ToFileDownloadHandler);
currentWebRequest.Send();
while (!currentWebRequest.isDone && !currentWebRequest.isNetworkError && !currentWebRequest.isHttpError)
{
if (currentWebRequest.isNetworkError)
{
yield break;
}
}
if (currentWebRequest.isNetworkError)
{
downloadHendler.Cancel();
}
else
{
/// suceess
}
}
public class ToFileDownloadHandler : DownloadHandlerScript
{
private int _expected = -1;
private long _received = 0;
private readonly string _filepath;
private readonly FileStream _fileStream = null;
private bool _canceled = false;
public ToFileDownloadHandler(byte[] buffer, string filepath) : base(buffer)
{
CreateDir();
_filepath = filepath;
_fileStream = new FileStream(filepath, FileMode.Create, FileAccess.Write);
}
protected override byte[] GetData() { return null; }
protected override bool ReceiveData(byte[] data, int dataLength)
{
if (data == null || data.Length < 1)
{
return false;
}
_received += dataLength;
if (!_canceled)
{
_fileStream.Write(data, 0, dataLength);
_fileStream.Flush();
}
return true;
}
protected override float GetProgress()
{
if (_expected < 0) return 0;
return (float)_received / _expected;
}
protected override void CompleteContent()
{
_fileStream.Close();
_isComplete = true;
}
protected override void ReceiveContentLength(int contentLength)
{
_expected = contentLength;
}
public void Cancel()
{
if (_canceled) return;
_canceled = true;
if (_fileStream != null)
{
_fileStream.Close();
}
File.Delete(_filepath);
}
private void CreateDir()
{
cachePath = Application.persistentDataPath;
if (!Directory.Exists(cachePath))
{
Directory.CreateDirectory(cachePath);
}
}
}
}

C# Using SoundPlayer to Pause and Resume

I am another person dabbling with C# and wanting to create a simple audio application that plays wav files loaded into the program via an upload program. My issue is that I need to get whatever audio file currently being played to pause with the track timer of the audio file being used when I start the audio file again via my Play button. I already have a global timer, 'baseTimer', that I think I can use to set the audio file, that was stopped, track duration point. However I do not know how to accomplish this nor do I really know how to use all of the mci commands yet.
I have displayed all of my code for my main application... I also have read that I may need to utilize threading, but I've also read that it would be impossible to set an audio files track duration with a thread.
public partial class FrmMain : Form
{
public FrmMain()
{
InitializeComponent();
}
System.Timers.Timer baseTimer = new System.Timers.Timer();
List<string> PlayList = new List<string>();
List<byte> PlayList_byte;
int soundNum = 0;
private string music_PATH { get; set; }
private string talk_PATH { get; set; }
private byte Pause_TIME { get; set; }
private string Pause_RADIO { get; set; }
bool isStopped = new bool();
bool isPaused = new bool();
[DllImport("winmm.dll")]
private static extern uint mciSendString(string command, StringBuilder returnValue, int returnLength, IntPtr winHandle);
public static int GetSoundLength(string fileName)
{
StringBuilder lengthBuf = new StringBuilder(32);
mciSendString(string.Format("open \"{0}\" type waveaudio alias wave", fileName), null, 0, IntPtr.Zero);
mciSendString("status wave length", lengthBuf, lengthBuf.Capacity, IntPtr.Zero);
mciSendString("close wave", null, 0, IntPtr.Zero);
int length = 0;
int.TryParse(lengthBuf.ToString(), out length);
return length;
}
private void SetPath()
{
music_PATH = #"..\\..\\commercial\list.txt";
talk_PATH = #"..\\..\\main\list.txt";
StreamReader myReader;
using (myReader = new StreamReader(music_PATH))
{
while (myReader.Peek() != -1)
{
string read = myReader.ReadLine();
PlayList.Add(read);
}
}
using (myReader = new StreamReader(talk_PATH))
{
while (myReader.Peek() != -1)
{
string read = myReader.ReadLine();
PlayList.Add(read);
}
myReader.Close();
}
foreach (string sound in PlayList)
{
soundNum++;
}
}
private string CurrentSound()
{
try
{
Random _randx = new Random();
int pick = _randx.Next(0, soundNum);
string currentaudio = PlayList[pick];
Pause_RADIO = currentaudio;
return currentaudio;
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message);
}
return null;
}
string _SelectedSound = "";
private string _Sound(string currentradio, string pattern)
{
foreach (Match entry in Regex.Matches(currentradio, pattern))
{
_SelectedSound = entry.Value.ToString();
}
if (_SelectedSound == "music")
{
return "commercial";
}
else if (_SelectedSound == "talk")
{
return "main";
}
return null;
}
private void _SetTimer(string currentradio, string pattern)
{
baseTimer.Interval = GetSoundLength(#"..\\..\\" + pattern + #"\" + currentradio);
}
private bool isRepeat(string lastradio, string currentradio)
{
if (lastradio == currentradio)
{
return true;
}
else
{
return false;
}
}
private void baseTimerElasped(object sender, ElapsedEventArgs e)
{
Radio.FrmMain play = new Radio.FrmMain();
play.PlayPlayer();
}
private void PlayPlayer()
{
MediaPlayer wavplayer;
try
{
if (soundNum == 0)
{
SetPath();
PlayPlayer();
}
else
{
string currentradio = CurrentSound();
bool localcheck = isRepeat(_SelectedSound, currentradio);
if (localcheck == true)
{
PlayPlayer();
}
else
{
string Pattern = #"(music|talk)";
string selected = _Sound(currentradio, Pattern);
_SetTimer(currentradio, selected);
switch (selected)
{
case "commercial":
music_PATH = #"..\\..\\commercial\";
PlayList_byte = new List<byte>(File.ReadAllBytes(music_PATH + currentradio));
wavplayer = new MediaPlayer(PlayList_byte.GetRange(0, PlayList_byte.Count).ToArray());
wavplayer.Play();
baseTimer.Start();
break;
case "main":
talk_PATH = #"..\\..\\main\";
PlayList_byte = new List<byte>(File.ReadAllBytes(talk_PATH + currentradio));
wavplayer = new MediaPlayer(PlayList_byte.GetRange(0, PlayList_byte.Count).ToArray());
wavplayer.Play();
baseTimer.Start();
break;
}
}
}
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message + ex.StackTrace + ex.Source);
}
}
private void PausePlayer()
{
MediaPlayer wavplayer = new MediaPlayer(PlayList_byte.GetRange(0, PlayList_byte.Count).ToArray());
baseTimer.Stop();
MessageBox.Show("Count: " + PlayList_byte.Count + "Pause_TIME: " + Pause_TIME + "\nPlaylist_byte" + PlayList_byte.ToString());
try
{
switch (isPaused)
{
case false:
isPaused = true;
wavplayer.Stop();
break;
case true:
isPaused = false;
string localcheck = _Sound(Pause_RADIO, #"(music|talk)");
switch (localcheck)
{
case "commercial":
music_PATH = #"..\\..\\commercial\";
wavplayer.Play(PlayList_byte.GetRange(PlayList_byte.Count - Pause_TIME, PlayList_byte.Count - Pause_TIME).ToArray());
break;
case "main":
talk_PATH = #"..\\..\\main\";
wavplayer.Play(PlayList_byte.GetRange(PlayList_byte.Count - Pause_TIME, PlayList_byte.Count - Pause_TIME).ToArray());
break;
}
break;
}
}
catch (Exception ex)
{
MessageBox.Show("Error: " + ex.Message + ex.Data);
}
}
private void btnPlay_Click(object sender, EventArgs e)
{
switch (isStopped)
{
case false:
isStopped = true;
btnPlay.Image = Image.FromFile(#"..\\..\\Pause.png");
lblPlay.Text = "Pause";
if (isPaused == false)
{
PlayPlayer();
}
else
{
PausePlayer();
}
break;
case true:
isStopped = false;
btnPlay.Image = Image.FromFile(#"..\\..\\Play.png");
lblPlay.Text = "Play";
PausePlayer();
break;
}
baseTimer.Elapsed += new ElapsedEventHandler(baseTimerElasped);
}
private void btnNext_Click(object sender, EventArgs e)
{
PlayPlayer();
}
private void btnStop_Click(object sender, EventArgs e)
{
MediaPlayer wavplayer = new MediaPlayer();
wavplayer.Stop();
baseTimer.Stop();
}
private void btnQuit_Click(object sender, EventArgs e)
{
Application.Exit();
}
private void btnGetUpload_Click(object sender, EventArgs e)
{
Uploader FrmUpload = new Uploader();
FrmUpload.Show();
this.Hide();
}
}
class MediaPlayer
{
SoundPlayer wavplayer;
public MediaPlayer()
{
Stop();
}
public MediaPlayer(byte[] buffer)
{
MemoryStream memStream = new MemoryStream(buffer, true);
wavplayer = new SoundPlayer(memStream);
}
public void Play()
{
wavplayer.Play();
}
public void Play(byte[] buffer)
{
wavplayer.Stream.Seek(0, SeekOrigin.Begin);
wavplayer.Stream.Write(buffer, 0, buffer.Length);
wavplayer.Play();
}
public void Stop()
{
wavplayer.Stop();
}
}
Edit:
For clarity currentaudio has a file as such "music3.wav" or "talk1.wav" in it.

Super old question but just for anyone looking here's what worked for me:
double currentPos = audioplayer.CurrentPosition;
audioplayer.Play();
audioplayer.Seek(currentPos);

SoundPlayer is extremely limited, and doesn't support Pause and Resume. Are you able to use the WPF MediaElement instead? You will find it is much more powerful, supporting playing files of many types, repositioning, setting volume, pausing and resuming. You can also use it to get the file length instead of mci.

Isolated Storage Exception while reading a stream next time

I am creating an application for WP7.1 with Phonegap in which I have to download a video and save it in Isolated Storage.
Now while reading that video, for the first time I can read it correctly, but after that I am not able to read the stream. This exception occurs every I try to read that video after I have read it once : Operation not permitted on IsolatedStorageFileStream.
Taken the code from : How to play embedded video in WP7 - Phonegap?
and added Pause and Stop functionality.
using System;
using System.IO;
using System.IO.IsolatedStorage;
using System.Runtime.Serialization;
using System.Windows;
using System.Windows.Controls;
using Microsoft.Phone.Controls;
using WP7CordovaClassLib.Cordova.JSON;
namespace WP7CordovaClassLib.Cordova.Commands
{
public class Video : BaseCommand
{
/// <summary>
/// Video player object
/// </summary>
private MediaElement _player;
Grid grid;
[DataContract]
public class VideoOptions
{
/// <summary>
/// Path to video file
/// </summary>
[DataMember(Name = "src")]
public string Src { get; set; }
}
public void Play(string args)
{
VideoOptions options = JsonHelper.Deserialize<VideoOptions>(args);
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
try
{
_Play(options.Src);
DispatchCommandResult(new PluginResult(PluginResult.Status.OK));
}
catch (Exception e)
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, e.Message));
GoBack();
}
});
}
private void _Play(string filePath)
{
if (_player != null)
{
if (_player.CurrentState == System.Windows.Media.MediaElementState.Paused)
{
_player.Play();
}
}
else
{
// this.player is a MediaElement, it must be added to the visual tree in order to play
PhoneApplicationFrame frame = Application.Current.RootVisual as PhoneApplicationFrame;
if (frame != null)
{
PhoneApplicationPage page = frame.Content as PhoneApplicationPage;
if (page != null)
{
grid = page.FindName("VideoPanel") as Grid;
if (grid != null && _player == null)
{
_player = new MediaElement();
grid.Children.Add(this._player);
grid.Visibility = Visibility.Visible;
_player.Visibility = Visibility.Visible;
_player.MediaEnded += new RoutedEventHandler(_player_MediaEnded);
}
}
}
Uri uri = new Uri(filePath, UriKind.RelativeOrAbsolute);
if (uri.IsAbsoluteUri)
{
_player.Source = uri;
}
else
{
using (IsolatedStorageFile isoFile = IsolatedStorageFile.GetUserStoreForApplication())
{
if (isoFile.FileExists(filePath))
{
**using (IsolatedStorageFileStream stream =
new IsolatedStorageFileStream(filePath, FileMode.Open, isoFile))
{
_player.SetSource(stream);
stream.Close();
}
}
else
{
throw new ArgumentException("Source doesn't exist");
}
}
}
_player.Play();
}
}
void _player_MediaEnded(object sender, RoutedEventArgs e)
{
GoBack();
}
public void Pause(string args)
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
try
{
_Pause(args);
DispatchCommandResult(new PluginResult(PluginResult.Status.OK));
}
catch (Exception e)
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, e.Message));
}
});
}
private void _Pause(string filePath)
{
if (_player != null)
{
if (_player.CurrentState == System.Windows.Media.MediaElementState.Playing)
{
_player.Pause();
}
}
}
public void Stop(string args)
{
Deployment.Current.Dispatcher.BeginInvoke(() =>
{
try
{
_Stop(args);
DispatchCommandResult(new PluginResult(PluginResult.Status.OK));
}
catch (Exception e)
{
DispatchCommandResult(new PluginResult(PluginResult.Status.ERROR, e.Message));
}
});
}
private void _Stop(string filePath)
{
GoBack();
}
private void GoBack()
{
if (_player != null)
{
if (_player.CurrentState == System.Windows.Media.MediaElementState.Playing
|| _player.CurrentState == System.Windows.Media.MediaElementState.Paused)
{
_player.Stop();
}
_player.Visibility = Visibility.Collapsed;
_player = null;
}
if (grid != null)
{
grid.Visibility = Visibility.Collapsed;
}
}
}
}
** The exception (Operation not permitted on IsolatedStorageFileStream.) occurs at _Play function while reading the file (Please see ** in code above). First time it runs perfectly and when I come to read the file second time it gives Exception.
What might be the problem?
Is I am doing something wrong?

It sounds like the file is still open from the previous read. If this is the case, you need to specify the fileAccess and fileShare to allow it to be opened by another thread:
using (IsolatedStorageFileStream stream = new IsolatedStorageFileStream(filePath, FileMode.Open, FileAccess.Read, FileShare.Read, isoFile)

I solved this problem by just setting the source property of the MediaElement to null before navigating back. So, when i come back to play the same video, the MediaElement source is free for it.
Edited the GoBack Function to :
private void GoBack()
{
// see whole code from original question.................
_player.Visibility = Visibility.Collapsed;
_player.Source = null; // added this line
_player = null;
//..................
}
Thanks All.

How to use a thread in a playback function

I want to playback a sound file in two or three external sound cards at the same time and I think that using threads is the solution but I really didn't know how to use it in the playback code.
This is the event makes on button play:
public partial class PlaybackForm : Form
{
IWavePlayer waveOut;
string fileName = null;
WaveStream mainOutputStream;
WaveChannel32 volumeStream;
int _deviceNum;
int _deviceNum1;
Thread t1;
Thread t2;
public PlaybackForm(int deviceNum,int deviceNum1)
{
InitializeComponent();
_deviceNum = deviceNum;
_deviceNum1 = deviceNum1;
}
private void buttonPlay_Click(object sender, EventArgs e)
{
if (waveOut != null)
{
if (waveOut.PlaybackState == PlaybackState.Playing)
{
return;
}
else if (waveOut.PlaybackState == PlaybackState.Paused)
{
waveOut.Play();
return;
}
}
// we are in a stopped state
// TODO: only re-initialise if necessary
if (String.IsNullOrEmpty(fileName))
{
toolStripButtonOpenFile_Click(sender, e);
}
if (String.IsNullOrEmpty(fileName))
{
return;
}
try
{
CreateWaveOut();
}
catch (Exception driverCreateException)
{
MessageBox.Show(String.Format("{0}", driverCreateException.Message));
return;
}
mainOutputStream = CreateInputStream(fileName);
trackBarPosition.Maximum = (int)mainOutputStream.TotalTime.TotalSeconds;
labelTotalTime.Text = String.Format("{0:00}:{1:00}", (int)mainOutputStream.TotalTime.TotalMinutes,
mainOutputStream.TotalTime.Seconds);
trackBarPosition.TickFrequency = trackBarPosition.Maximum / 30;
try
{
waveOut.Init(mainOutputStream);
}
catch (Exception initException)
{
MessageBox.Show(String.Format("{0}", initException.Message), "Error Initializing Output");
return;
}
// not doing Volume on IWavePlayer any more
volumeStream.Volume = volumeSlider1.Volume;
waveOut.Play();
}
And this is how to create the waveout:
private void CreateWaveOut()
{
CloseWaveOut();
int latency = (int)comboBoxLatency.SelectedItem;
//if (radioButtonWaveOut.Checked)
{
//WaveCallbackInfo callbackInfo = checkBoxWaveOutWindow.Checked ?
WaveCallbackInfo callbackInfo = WaveCallbackInfo.FunctionCallback();
// WaveCallbackInfo callbackInfo = WaveCallbackInfo.FunctionCallback();
// WaveCallbackInfo.NewWindow(): WaveCallbackInfo.FunctionCallback();
WaveOut outputDevice = new WaveOut(callbackInfo);
outputDevice.DesiredLatency = latency;
outputDevice.DeviceNumber = _deviceNum;
waveOut = outputDevice;
}
}
I declared two deviceNum but until now I can playsound only in one device,that's why I want to use thread.
Can you help me please
Thank you in advance

Do something like that:
using System.Threading;
...
private void buttonPlay_Click(object sender, EventArgs e)
{
ThreadPool.QueueUserWorkItem(new WaitCallback(this.PlaySound), 1);
ThreadPool.QueueUserWorkItem(new WaitCallback(this.PlaySound), 2);
}
private void PlaySound(object obj)
{
int deviceNumber = (int)obj;
// Do the stuff you used to do in buttonPlay_Click
WaveOut myWaveOut = CreateWaveOut(deviceNumber);
...
}
private WaveOut CreateWaveOut(int deviceNumber)
{
...
WaveOut outputDevice = new WaveOut(callbackInfo);
outputDevice.DesiredLatency = latency;
outputDevice.DeviceNumber = _deviceNum;
return outputDevice;
}

Symbol.WPAN.Bluetooth example that transfers data

I am trying to use Symbol.WPAN.Bluetooth that comes with the EMDK for Symbol devices.
Does anyone happen to have a working example that transfers data?
Symbol's example just pairs the devices. (They apparently think that transfering data is not really needed in a Personal Area network example.)
Anyway, I know this is a long shot, but if anyone has gotten this to work I would love to see some code.
This is what I have tried. I have one device press button1 and another device press button2. The read value is always a zero length byte array.
using System.Text;
using System.Windows.Forms;
using Symbol.WPAN;
using Symbol.WPAN.Bluetooth;
namespace SmartDeviceProject1
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void button1_Click(object sender, EventArgs e)
{
Bluetooth bluetooth = new Bluetooth();
if (bluetooth.IsEnabled != true)
{
bluetooth.Enable();
bluetooth.RadioMode = BTH_RADIO_MODE.BTH_DISCOVERABLE_AND_CONNECTABLE;
}
RemoteDevice connectedDevice = null;
foreach (RemoteDevice remoteDevice in MakeEnumerable(bluetooth.RemoteDevices))
{
if ((remoteDevice.Name == "WM_Dan") && (remoteDevice.IsPaired == false))
{
remoteDevice.Pair();
connectedDevice = remoteDevice;
}
}
string test;
test = "Testing this out";
ASCIIEncoding encoding = new ASCIIEncoding();
byte[] encTest = encoding.GetBytes(test);
if (connectedDevice != null)
{
connectedDevice.WriteTimeout = 20000;
connectedDevice.Write(encTest);
}
}
public static IEnumerable<RemoteDevice> MakeEnumerable(RemoteDevices devices)
{
for (var i = 0; i < devices.Length; i++)
{
yield return devices[i];
}
}
private void button2_Click(object sender, EventArgs e)
{
Bluetooth bluetooth = new Bluetooth();
if (bluetooth.IsEnabled != true)
{
bluetooth.Enable();
bluetooth.RadioMode = BTH_RADIO_MODE.BTH_DISCOVERABLE_AND_CONNECTABLE;
}
RemoteDevice connectedDevice = null;
foreach (RemoteDevice remoteDevice in MakeEnumerable(bluetooth.RemoteDevices))
{
if ((remoteDevice.Name == "WM_Dan2") && (remoteDevice.IsPaired == false))
{
remoteDevice.Pair();
connectedDevice = remoteDevice;
}
}
string test;
test = "Testing this out";
ASCIIEncoding encoding = new ASCIIEncoding();
byte[] encTest = encoding.GetBytes(test);
byte[] encTest2;
string test2;
if (connectedDevice != null)
{
connectedDevice.ReadTimeout = 20000;
encTest2 = connectedDevice.Read(encTest.Length);
test2 = encoding.GetString(encTest2, 0, encTest2.Length);
MessageBox.Show(test2);
}
}
}
}

I gave up on using the built in com port connection and opened a SerialPort object on the connection.
SerialPort sp = new SerialPort();
sp.PortName = "COM" + connectedDevice.LocalComPort.ToString();
sp.BaudRate = 9600;
sp.DataBits = 8;
sp.Parity = Parity.None;
sp.StopBits = StopBits.One;
sp.Open();
sp.Open();
sp.DataReceived += new SerialDataReceivedEventHandler(sp_DataReceived);
sp.ErrorReceived += new SerialErrorReceivedEventHandler(sp_ErrorReceived);
sp.WriteLine(textBoxSend.Text);
I also found that even though their docs said that LocalComPort was auto assigned, this was not always the truth. It was best to use their BTExplorer to set it first.
As well, there OpenComPort would work in situations where is should not -- using Reflector it is pretty obviously wrong. There are checking the return of ::CreateFile("COM" + port...) against 0 instead of -1 (INVALID_HANDLE_VALUE)

I don't know if this can ever help anyone, but here is an old piece of code that I wrote a few years back.
You'll have to clean it up so that it works for your application. My app had a TextBox control that it read from and logged errors to a Global class. Change that to work with what you have, and it should basically be good.
static class Scanner {
const string _CODEFILE = "Scanner.cs - Scanner::";
static int _baud = 9600;
static int _bits = 8;
static string _dataIn = null;
static string _port = "COM1";
static Parity _parity = Parity.None;
static StopBits _stop = StopBits.One;
static SerialPort _com1 = null;
static TextBox _textbox = null;
public enum ControlType { None, BadgeID, PartNumber, SerialNumber, WorkOrder };
static ControlType _control;
public static bool Available { get { return ((_com1 != null) && (_com1.IsOpen)); } }
public static bool Close {
get {
if (_com1 == null) return true;
try {
if (_com1.IsOpen) {
_com1.Close();
}
return (!_com1.IsOpen);
} catch { }
return false;
}
}
public static string Open() {
const string na = "Not Available";
if (_com1 == null) {
string reset = Reset();
if (!String.IsNullOrEmpty(reset)) return reset;
}
try {
_com1.Open();
return (_com1.IsOpen) ? null : na;
} catch (Exception err) {
return err.Message;
}
}
static void ProcessData(string incoming) {
_dataIn += incoming;
if ((_control != ControlType.None) && (_textbox != null)) {
bool ok = false;
string testData = _dataIn.Trim();
switch (_control) {
case ControlType.BadgeID:
if (testData.Length == 6) {
if (testData != BarCode.LOGOFF) {
Regex pattern = new Regex(#"[0-9]{6}");
ok = (pattern.Matches(testData).Count == 1);
} else {
ok = true;
}
}
break;
case ControlType.PartNumber:
if (testData.Length == 7) {
Regex pattern = new Regex(#"[BCX][P057][0-9]{5}");
ok = (pattern.Matches(testData).Count == 1);
}
break;
case ControlType.SerialNumber:
if (testData.Length == 15) {
Regex pattern = new Regex(#"[BCX][P057][0-9]{5} [0-9]{4} [0-9]{2}");
ok = (pattern.Matches(testData).Count == 1);
}
break;
case ControlType.WorkOrder:
if (testData.Length == 6) {
Regex pattern = new Regex(#"[0-9]{6}");
ok = (pattern.Matches(testData).Count == 1);
}
break;
}
if (ok) {
_textbox.Text = testData;
_textbox.ScrollToCaret();
_dataIn = null;
}
}
}
static string Reset() {
if (_com1 != null) {
try {
if (_com1.IsOpen) {
_com1.DiscardInBuffer();
_com1.Close();
}
} catch (Exception err) {
return err.Message;
}
Global.Dispose(_com1);
_com1 = null;
}
try {
_com1 = new SerialPort(_port, _baud, _parity, _bits, _stop);
_com1.DataReceived += new SerialDataReceivedEventHandler(Serial_DataReceived);
_com1.Open();
} catch (Exception err) {
return err.Message;
}
return null;
}
public static void ScanSource(ref TextBox objTextBox, ControlType objType) {
_textbox = objTextBox;
_control = objType;
_dataIn = null;
}
static void Serial_DataReceived(object sender, SerialDataReceivedEventArgs e) {
ProcessData(_com1.ReadExisting());
}
public static void Settings(string ComPort, int BaudRate, Parity ParityValue, int Bits, StopBits StopBit) {
_port = ComPort;
_baud = BaudRate;
_parity = ParityValue;
_bits = Bits;
_stop = StopBit;
}
/// <summary>
/// Closes the COM Port
/// COM Port routines are ready to add as soon as I am
/// </summary>
static bool ComPortClose {
get {
if (_com1 == null) ComPortReset();
return ((_com1 == null) ? true : _com1.IsOpen ? false : true);
}
set {
if (_com1 == null) ComPortReset();
else if (_com1.IsOpen) {
_com1.DiscardInBuffer();
_com1.Close();
}
}
}
/// <summary>
/// Opens the COM Port
/// </summary>
static bool ComPortOpen {
get {
if (_com1 == null) ComPortReset();
return (_com1 == null) ? false : _com1.IsOpen;
}
set {
if (_com1 == null) ComPortReset();
if ((_com1 != null) && (!_com1.IsOpen)) _com1.Open();
}
}
/// <summary>
/// Initialized the Serial Port on COM1
/// </summary>
static void ComPortReset() {
if ((_com1 != null) && (_com1.IsOpen)) {
_com1.Close();
_com1 = null;
}
try {
_com1 = new SerialPort("COM1", 9600, Parity.None, 8, StopBits.One);
} catch (IOException err) {
Global.LogError(_CODEFILE + "ComPortReset", err);
}
}
}