Re: Creating a Process question!!! - C# Discussion Boards

Bob_Sun5-Apr-06 20:14

5-Apr-06 20:14

I met the same problem and I wrote a sound lib myself in C++.
Form C++, you can easily access mixer funcs provided in winmm.lib.

Of causeif DirectX is a shortcut if it can be installed in you system.

Re: how to play wav file in C#

Ed.Poore5-Apr-06 20:27

Ed.Poore

5-Apr-06 20:27

ref bool is a reference to a boolean value (like a pointer in C), it is used if the function needs to change one of the calling parameters, like in C.

So just declare a boolean, e.g.:

bool myWait = false;

and then pass it as, e.g.:

library.function(parm1, parm2, ref myWait);

This allows library.function to change the value of your variable myWait.

Ed

Re: how to play wav file in C#

V.5-Apr-06 20:36

5-Apr-06 20:36

Did you search here on CP? I found someting here lately.

Coulda, woulda, shoulda doesn't matter if you don't.

Re: how to play wav file in C#

scoroop5-Apr-06 22:09

scoroop

5-Apr-06 22:09

searching is a great skill i can see ;]...

http://www.codeproject.com/cs/media/tonysound.asp

Thanx for the kind help

nauty5-Apr-06 23:58

nauty

5-Apr-06 23:58

Hi buddies
Thanx for your wonderfull support.without your help i could'nt have done that.
I used "RSP MP3Player OCX 2.7.5" . just using it, the task became a kids play.
if someone else need it can download it from net.
Simply add its components and use its method. its the most easiest of all.
Thanx to all ones again and especially to Ed.Poore.
bye

nauty

DataGridView Help urgent

Naveed Shoaib5-Apr-06 9:43

Naveed Shoaib

5-Apr-06 9:43

I am working on a Data Grid View control that stores values of a matrix. The values can only be integers or floating point values. I have two problems:

1. How can I retrieve values from the DataGridView Control and store it in a double 2D array. Please tell me the approperiate method.

2. Can I bind the DataGridView Control to a specific data type, e.g. double, so that automatic validation can be done on the values entered.

Thanks
Naveed

Creating a Process question!!!

tryston025-Apr-06 9:22

tryston02

5-Apr-06 9:22

Hello,

I am trying to use our 3rd party fax software FaxPress. It requires this line of text to be called during a command line.

Our old VB 6 app is doing this but using a shell command. I was told this could be done using the Process class in C#.

Here is what I have:

    <br />
    /// <summary><br />
    /// Faxes attachments to destination<br />
    /// </summary><br />
    /// <param name="output">Output directory for FaxPress</param><br />
    /// <param name="subject">Subject Line</param><br />
    /// <param name="faxPress">Fax system to use. TACCFAX1*</param><br />
    /// <param name="account">Login account. XOC</param><br />
    /// <param name="files">Attachments /A</param><br />
    /// <param name="phone">Calling info [name @][company @] PhoneNumber</param><br />
    private void GenerateFax(string output, string subject, string faxPress, string account, string files, string phone)<br />
    {<br />
        StringBuilder executeString = new StringBuilder();<br />
        executeString.Append("SubmitFax /S " + faxPress);<br />
        executeString.Append(" /U " + account);<br />
        executeString.Append(" /R " + phone);<br />
        executeString.Append(" /O " + output);<br />
        executeString.Append(" /B " + subject + " ");<br />
        executeString.Append(files);<br />
        executeString.Append(" " + "/C NO COVER PAGE");<br />
<br />
        Process process = new Process();<br />
        process.StartInfo.Arguments = executeString.ToString();<br />
        process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;<br />
        process.Start();<br />
    }<br />

Does this look right? Is process.StartInfo.Arguments the right property? There is no batch file or .exe to be called, just this string.

Thanks for any help!

Chris

-- modified at 15:23 Wednesday 5th April, 2006

Re: Creating a Process question!!!

Dan Neely5-Apr-06 9:58

Dan Neely

5-Apr-06 9:58

I'm not sure, but you might have to set the targeted app to cmd.exe, or even run cmd.exe, and pass the comand line parameters through it's input stream.

Re: Creating a Process question!!!

tryston025-Apr-06 10:04

tryston02

5-Apr-06 10:04

Like so? :

private void GenerateFax(string output, string subject, string faxServer, string account, string files, string phone)
{
StringBuilder executeString = new StringBuilder();
executeString.Append("SubmitFax /S " + faxServer);
executeString.Append(" /U " + account);
executeString.Append(" /R " + phone);
executeString.Append(" /O " + output);
executeString.Append(" /B " + subject + " ");
executeString.Append(files);
executeString.Append(" " + "/C NO COVER PAGE");

Process process = new Process();
process.StartInfo.FileName = "cmd.exe";
process.StartInfo.Arguments = executeString.ToString();
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
process.Start();
}

Re: Creating a Process question!!!

Dan Neely5-Apr-06 10:07

Dan Neely

5-Apr-06 10:07

tryston02 wrote:
Like so? :

Does it work?

Re: Creating a Process question!!!

tryston025-Apr-06 10:13

tryston02

5-Apr-06 10:13

Not sure yet. I have to get the new number for our fax machine. I'll let you know.
Thanks for the help!

Re: Creating a Process question!!!

tryston025-Apr-06 10:22

tryston02

5-Apr-06 10:22

Ok, no it didn't work

Re: Creating a Process question!!!

Graham Nimbley5-Apr-06 10:25

Graham Nimbley

5-Apr-06 10:25

Off the top of my head, this won't work. Firstly cmd won't return (i.e. close) and it won't execute SubmitFax as the /C argument of cmd is missing. Instead use SubmitFax for the FileName property:

private void GenerateFax(string output, string subject, string faxServer, string account, string files, string phone)<br />
{<br />
StringBuilder executeString = new StringBuilder();<br />
executeString.Append("/S " + faxServer);<br />
executeString.Append(" /U " + account);<br />
executeString.Append(" /R " + phone);<br />
executeString.Append(" /O " + output);<br />
executeString.Append(" /B " + subject + " ");<br />
executeString.Append(files);<br />
executeString.Append(" " + "/C NO COVER PAGE");<br />
<br />
Process process = new Process();<br />
process.StartInfo.FileName = "SubmitFax";<br />
process.StartInfo.Arguments = executeString.ToString();<br />
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;<br />
process.Start();<br />
}<br />

Graham

Re: Creating a Process question!!!

tryston025-Apr-06 10:30

tryston02

5-Apr-06 10:30

Graham,

Thanks for the input, however when I try this I get the following error:

"The system cannot find the file specified"

Re: Creating a Process question!!!

Graham Nimbley5-Apr-06 10:34

Graham Nimbley

5-Apr-06 10:34

Don't forget to prepend the path of SubmitFax to the FileName property.

process.StartInfo.FileName = @"C:\Path To Program\SubmitFax.exe";

If the SubmitFax is in the same directory as the exe, you can use

process.StartInfo.FileName = Application.StartupPath+@"\SubmitFax.exe";

Re: Creating a Process question!!!

tryston025-Apr-06 10:51

tryston02

5-Apr-06 10:51

Looks like our Fax Server is not working. I will let you know once it's back up.

Thanks again for your help!

Re: Creating a Process question!!!

tryston026-Apr-06 4:58

tryston02

6-Apr-06 4:58

Ok, The server is up and working. Here's my code:

private void GenerateFax(string outputDirectory, string subject, string faxServer, string account, string files, string phone)
{
StringBuilder executeString = new StringBuilder();
executeString.Append("SubmitFax /S " + faxServer);
executeString.Append(" /U " + account);
executeString.Append(" /R " + phone);
executeString.Append(" /O " + outputDirectory);
executeString.Append(" /B " + subject);
executeString.Append(" /A" + files);
executeString.Append(" /C NO COVER PAGE");

Process process = new Process();
process.StartInfo.FileName = @"C:\FaxPressExe\SubmitFax.exe";
process.StartInfo.Arguments = executeString.ToString();
process.StartInfo.WindowStyle = ProcessWindowStyle.Hidden;
process.Start();
}

Now when I run it I receive this error:

The instruction at "0x73dd442d" referenced memory at "0x00c99805". The memory could not be "read"

Any ideas?

-- modified at 11:27 Thursday 6th April, 2006

Re: Creating a Process question!!!

Graham Nimbley6-Apr-06 12:11

Graham Nimbley

6-Apr-06 12:11

You forget to replace:

executeString.Append("SubmitFax /S " + faxServer);

with this:

executeString.Append("/S " + faxServer);

"SubmitFax" is being submitted as a parameter, so it need removing (as above).
Anyway, it sounds like it's running the process as it returned an error.

Graham

How to avoid dragging a form

Elvia Gonzalez5-Apr-06 9:14

Elvia Gonzalez

5-Apr-06 9:14

Hi everybody!

I'm new on C# programming. I have a main form in my Windows applications that contains other form as a Explorer of folders. I don't want to allow to drag the Explorer form (FrmExplorer). FrmExplorer has a TreeView. I have been looking for information about it and have written the following code:

public partial class FrmExplorer : Form
{

public FrmExplorer(string fileName)
{
InitializeComponent();
this.QueryContinueDrag += new System.Windows.Forms.QueryContinueDragEventHandler(this.FrmExplorer_CancelDrag);
}

private void FrmExplorer_CancelDrag(object sender, QueryContinueDragEventArgs e)
{
e.Action = DragAction.Cancel;
}
}

I have set the method FrmExplorer_CancelDrag in FrmExplorer Properties in the event QueryContinueDrag. But I still cannot reach the method FrmExplorer_CancelDrag when dragging the form to cancel that action.

Does anybody can help me to know what I'm doing wrong or what is it missing?

Thanks a lot in advance,

Elvia

Recognising barcode?

Vertyg05-Apr-06 8:55

Vertyg0

5-Apr-06 8:55

Hi,
How can i recognise/detect barcode type ?
I see alot of posts about creating barcode image and so on but I havent seen any code that recognise barcode type, any help?
Thanks.

Re: Recognising barcode?

Gary Thom6-Apr-06 4:07

Gary Thom

6-Apr-06 4:07

Usually the barcode reader converts the barcode into either keypresses or serial (RS232) data.

Gary

Flickr Photos[^]

Re: Recognising barcode?

Vertyg06-Apr-06 9:52

Vertyg0

6-Apr-06 9:52

Yes but how to recognise string that i got from barcode reader
lets say we have string that says: 0075678164125, but what type of barcode is this is it code 39 ean or upc ... ?

overriding an @ to force control chars to be interpreted

Dan Neely5-Apr-06 8:37

Dan Neely

5-Apr-06 8:37

I'm reading a value from an ini file, ultimately by pinvoking GetPrivateProfileString from kernal32.dll. THe issue is that I want to be able to read a multiline value from one setting. I tried entering the value in the ini like this "multilineValue = line1 \n line2 \n line3", but when I read it from the file and look at it in debug I get '@"line1 \n line2 \n line3"' and the \n's are treated as string literals instead of control chars when I write the value out.

Re: overriding an @ to force control chars to be interpreted

Guffa5-Apr-06 9:21

Guffa

5-Apr-06 9:21

You can replace that character combination with a newline:

str = str.Replace("\\n", Environment.NewLine);

---
b { font-weight: normal; }

xpath not working with an xmlns attribute

Hari 20095-Apr-06 6:54

Hari 2009

5-Apr-06 6:54

I have an xml file and I am trying to use selectnodes with an xpath expression which is not working. After trial and error I found that the xml file has this rootnode <batchRequest onError="exit" xmlns="urn:oasis:names:tc:DSML:2 Blush | :O

:core"> and it is getting thrown off with the attribute xmlns. If I remove the xmlns attribute the xpath works fine. The xml file is a DSML message that I am receiving from another application.
Is this a bug or some limitation of the xpath? Does xpath has any limitations when it sees an xmlns attribute? Can any one suggest a workaround with this problem.

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