Re: How to handle recording method in main form? - C# Discussion Boards

http://www.codeproject.com/Messages/4943500/How-To-Create-Data-Recovery-in-Csharp-net.aspx[^]
How to Develop the Data recovery windows form applications using c#.net[^]

14-Nov-14 2:15

How many times are you going to re-post the same non-question? Mad | :mad:

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Plug in for Gecko Browser Window to view a PDF?

PDTUM13-Nov-14 7:54

PDTUM

13-Nov-14 7:54

Gentleman:
I would like to raise a browser window as a way to view a PDF. Right now, the application raises the window and propogates an internet address perfectly, however it does not launch a default PDF application as a way to view a file, and if I force it manually (which would defeat the purpose of the application) it will appear in an external window. The window must be internal to the application. I have made it work with some aftermarket solutions such as Apitron but their solutions are rather pricy, so I thought the best way to handle it would be to use a browser in an application window that could be stacked on other windows. If I could use a plug in to run a PDF viewer of any kind inside that window, it would serve as an acceptable solution. SO ... how do I add a plugin to Gecko so that it will run a PDF file when the page is loaded? Thank you in advance...Pat

How to handle recording method in main form?

Member 1110634813-Nov-14 4:37

Member 11106348

13-Nov-14 4:37

I'd like to apply voice recording function to specific application which uses threads. There are START and STOP buttons on application besides other forms.
I can start the recording method but the main application is not responding and I cannot stop the recording process.
I would appreciate any solution to resolve this issue.

private void barButtonItemStartRec_ItemClick(object sender, ItemClickEventArgs e)
        {
            barButtonItemStartRec.Enabled = !(barButtonItemStopRec.Enabled = true);            

            var dlg = new MainForm();
            BackgroundWorker recWorker = new BackgroundWorker();
            recWorker.DoWork += dlg.StartRec;
            recWorker.RunWorkerAsync();          
        }
        
private void barButtonItemStopRec_ItemClick(object sender, ItemClickEventArgs e)
        {            
            barButtonItemStartRec.Enabled = !(barButtonItemStopRec.Enabled = false);
            var dlg = new MainForm();
            dlg.StopRec();            
        }

Eddy Vluggen13-Nov-14 5:39

Eddy Vluggen

13-Nov-14 5:39

You are creating a new mainform, and stopping recording there - you are not stopping the recording in the "mainform" that you created in the StartRec-method. Change the local variable to a member-field and only create the mainform once.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

BillWoodruff13-Nov-14 6:22

BillWoodruff

13-Nov-14 6:22

fyi: due to delay of CP site here I did not see your post before I started mine.

«At the still point of the turning world. Neither flesh nor fleshless;
Neither from nor towards; at the still point, there the dance is
...
Neither ascent nor decline. Except for the point, the still point,
There would be no dance, and there is only the dance»

T.S. Elliot, The Four Quartets: "Burnt Norton"/xml>

Eddy Vluggen13-Nov-14 7:14

Eddy Vluggen

13-Nov-14 7:14

A good thing, as your explanation is more elaborate.

Bastard Programmer from Hell Suspicious | :suss:

If you can't read my code, try converting it here[^]

BillWoodruff13-Nov-14 6:21

BillWoodruff

13-Nov-14 6:21

There are several "red flags" in my head looking at your code:

1. you create instances of 'MainForm in both the EventHandlers, and those are assigned to local variables ('dlg): that means the references to those instances are effectively discarded the moment the EventHandler code is finished executing.

So, the instance of 'MainForm created in the first EventHandler has no relationship to the instance of MainForm created in the second EventHandler.

2. similarly 'recWorker is created, and the reference to it will be discarded.

3. there's so much one can't know looking at this code:

a. what code is in the 'StartRec and 'StopRec methods in 'MainForm.

b. we don't know in what context (Form, Class) these two EventHandlers are defined.

An obvious change to try is:

1. create one instance of MainForm and keep a reference to it.

2. create one instance of 'recWorker and keep a reference to it.

Suggestions:

1. might as well set the Enabled property of the recording Button to 'false when it gets a click: if it's not enabled it will never get a click.

2. set the Enabled property of the recording Button to 'true when you recording terminates

3. what about disabling the stop Button initially, and when recording is terminated.

Member 1110634813-Nov-14 21:16

Member 11106348

13-Nov-14 21:16

Mainform methods:

public void StartRec()
       {
           try
           {
               string destfile = Path.Combine(
                   Environment.GetFolderPath(Environment.SpecialFolder.MyMusic), "Recorded_Voice" + DateTime.Now.ToString("_yyyy_MM_dd_HH_mm_ss_fff") + ".mp3");
               mp3SoundCapture.CaptureDevice = SoundCaptureDevice.AllAvailable.First();
               mp3SoundCapture.NormalizeVolume = true;
               mp3SoundCapture.UseSynchronizationContext = true;
               mp3SoundCapture.WaitOnStop = true;
               mp3SoundCapture.OutputType = Mp3SoundCapture.Outputs.Mp3;
               mp3SoundCapture.WaveFormat = PcmSoundFormat.Pcm48kHz16bitMono;
               mp3SoundCapture.Mp3BitRate = Mp3BitRate.BitRate64;
               mp3SoundCapture.Start(destfile);
           }
           catch (Exception ex)
           {
               FormHelper.MessageBoxForm("Record Error: " + ex.Message, MessageBoxButtons.OK, MessageBoxIcon.Stop);
           }
       }

public void StopRec()
       {
           mp3SoundCapture.Stop();
       }

internal void StartRec(object sender, DoWorkEventArgs e)
       {
           StartRec();
       }

public void StopRec(object sender, DoWorkEventArgs e)
       {
           StopRec();
       }

Bernhard Hiller13-Nov-14 20:48

Bernhard Hiller

13-Nov-14 20:48

Another point to think about is the recording process proper. Do you use callback methods or do you collect Windows messages in an overridden WndProc function?

Sending E mail using C#

Fraol Gelana13-Nov-14 3:19

Fraol Gelana

13-Nov-14 3:19

could Someone help me, I tried to write a program to send an email, but it always fails!

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Net;
using System.Net.Mail;

namespace emailC
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private void Form1_Load(object sender, EventArgs e)
        {

        }

        private void button1_Click(object sender, EventArgs e)
        {
            try
            {
                using (MailMessage mail = new MailMessage())
                {
                    using (SmtpClient smtp = new SmtpClient("smtp.mail.yahoo.com", 587))
                    {
                        mail.From = new MailAddress("fgelana@yahoo.com");
                        mail.To.Add("fraolgela@gmail.com");
                        mail.Subject = "C# Email";
                        mail.Body = "This is for testing SMTP mail for yahoo using C#";
                        smtp.Credentials = new System.Net.NetworkCredential("name@yahoo.com", "password");
                        smtp.EnableSsl = false;
                        smtp.Send(mail);
                    }
                }
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.ToString());
            }
        }
    }
}

It returns the following exception!
System.Net.Mail.SmtpException:Failure sending mail. --->
System.Net.WebException: The remote name could not be resolved

Thank You!

Richard Deeming13-Nov-14 3:26

13-Nov-14 3:26

I see you've edited your message to remove your live Yahoo credentials. However, they were briefly visible on a public forum.

You should change your password immediately.

I'd also suggesting choosing a stronger password than the one you posted - use a mix of upper-case, lower-case, numbers and symbols, and avoid common words or brand names.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Fraol Gelana13-Nov-14 3:41

Fraol Gelana

13-Nov-14 3:41

Oh Man

Thanks!

I tried

nslookup smtp.mail.yahoo.com

but it replied can't find smtp.mail.yahoo.com Query refused!
My Internet is working correctly but i don't know how to fix a problem with my DNS provider!
Thank you!

Richard Deeming13-Nov-14 3:55

13-Nov-14 3:55

That's definitely a problem with your DNS servers. You'll need to talk to whoever's in charge of your infrastructure to resolve the problem.

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

Richard Deeming13-Nov-14 3:29

13-Nov-14 3:29

Fraol Gelana wrote:
System.Net.WebException: The remote name could not be resolved

Check your DNS settings, and make sure you can resolve "smtp.mail.yahoo.com".

Open a command-prompt, type nslookup smtp.mail.yahoo.com, and then press Return. The response should look something like:

Non-authoritative answer:
Name:     smtp.mail.eu.am0.yahoodns.net
Address:  188.125.69.59
Aliases:  smtp.mail.yahoo.com
          smtp.mail.global.gm0.yahoodns.net
          fo-smtp.mail.eu.am0.yahoodns.net

"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer

BillWoodruff13-Nov-14 3:37

BillWoodruff

13-Nov-14 3:37

First step is to put a break-point on:

using (MailMessage mail = new MailMessage())

and single-step (F11) through the code, examining the state/value of all variables as each line is executed. This may help you identify exactly what's failing.

May I suggest you take out your "real" e-mail address from your post: posting real e-mail addresses here is likely to get you spammed because of various evil things running about the net.

jschell13-Nov-14 11:27

jschell

13-Nov-14 11:27

BillWoodruff wrote:
First step is to put a break-point on:

I would suspect strongly that the exception that says "The remote name could not be resolved" pretty much resolves the problem. And debugging it isn't going to change that.

Could it mean something else?