C# Discussion Boards - CodeProject

nikvarma15-Jun-07 0:08

nikvarma

15-Jun-07 0:08

how should i convert a byte stream to b played as wav file

Re: c#

Rudolf Jan15-Jun-07 0:16

Rudolf Jan

15-Jun-07 0:16

You may use DirectX for this purpose. DirectX can read a wav file and play it afterwards. Download the DirectX SDK from Microsoft and search the C# samples. There are severa examples on how to do this. It is not very difficult.

Re: c#

Andrei Ungureanu15-Jun-07 1:13

Andrei Ungureanu

15-Jun-07 1:13

Hey,

I created an application that plays the sound from a byte array. I took me some time to figure it out, and finally I used Microsoft DirectX SDK. I will give you the code, maybe it will help you:

<br />
public void PlaySound(Array soundBytes)<br />
        {<br />
            if (soundBytes == null)<br />
                return;<br />
            BufferDescription desc = new BufferDescription(InputFormat);<br />
            desc.BufferBytes = soundBytes.Length;<br />
            desc.ControlFrequency = true;<br />
            desc.ControlPan = true;<br />
            desc.ControlPositionNotify = true;<br />
            desc.ControlVolume = true;<br />
            secBuffer = new SecondaryBuffer(desc, _appDevice);<br />
            secBuffer.Write(secBuffer.WritePosition, soundBytes, LockFlag.None);<br />
            secBuffer.Play(0, BufferPlayFlags.Default);<br />
        }<br />

The only thing you have to do is initialize the _appDevice object. Something like this:

<br />
_appDevice = new Device();<br />
_appDevice.SetCooperativeLevel(formHandle, CooperativeLevel.Priority);<br />

The form handle is the form which when is active can play the sound.

Hope it helps

Do your best to be the best

Reading Microsoft .lit files.

Nic Rowan14-Jun-07 23:52

Nic Rowan

14-Jun-07 23:52

As a little pet project I wanted to make a little app that could read Microsoft Reader .lit files.

I have the Microsoft Content SDK and I've got myself a licence from Microsoft to use it but it seems you can only create .lit files using this. I know that some of the files need licences to open but I'm not interested in opening anything like this, just opening basic .lit files is all I want to do.

I've been searching the web for an hour now and I'm not having any luck. Has anyone had any experience reading .lit files?

Thanks!
Nick R

Dad always thought laughter was the best medicine, which I guess is why several of us died of tuberculosis.

I can picture in my mind a world without war, a world without hate. And I can picture us attacking that world, because they'd never expect it.

Re: Reading Microsoft .lit files.

Vasudevan Deepak Kumar15-Jun-07 2:47

Vasudevan Deepak Kumar

15-Jun-07 2:47

A quick search revealed this URL (http://www.mobileread.com/forums/archive/index.php/t-4850.html[^])

There seems to be some utility called CLit. Can we use P/Invoke from C# on this utility?

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Re: Reading Microsoft .lit files.

Mali Perica15-Jun-07 3:42

Mali Perica

15-Jun-07 3:42

CLit is superb app, but only if you can find its binary or compile its source (I distinctly remember having some difficulties doing the latter, because main project is written in C or C++ and some parts are written in assembler). It basically decompiles LIT file into HTML and picture file(s) from which it is comprised.

Don't know if it can be P/Invoked, though.

How to convert an MS Word document to PDF

khuzwayom14-Jun-07 23:40

khuzwayom

14-Jun-07 23:40

Hi All.

Please help me. I would like to know how to convert an MS Word document to PDF and save that converted file on my local machine.

Thank You
Mpumelelo

khuzym

Re: How to convert an MS Word document to PDF

Vasudevan Deepak Kumar15-Jun-07 0:33

Vasudevan Deepak Kumar

15-Jun-07 0:33

ITextSharp (programmatically)
CutePDF (Word Plugin)

Vasudevan Deepak Kumar
Personal Homepage
Tech Gossips

Re: How to convert an MS Word document to PDF

khuzwayom15-Jun-07 0:56

khuzwayom

15-Jun-07 0:56

Thank Vasudevan Deepak Kumar

I will try although I am no sure where to start

khuzym

How to open a existing forn ?

help as an alias14-Jun-07 23:40

help as an alias

14-Jun-07 23:40

On the button_click event
How we open an existing form?
Please send code..........

Re: How to open a existing forn ?

Martin#14-Jun-07 23:51

Martin#

14-Jun-07 23:51

Hello,

If you have the instance of the From.
yourForm.Show();
or
yourform.ShowDialog();

All the best,

Martin

Re: How to open a existing forn ?

Muammar©17-Jun-07 4:56

Muammar©

17-Jun-07 4:56

Hello Martin,
I've published the article as promised, please check it and vote for me;)
Gone With The Wind

Smile: A curve that can set a lot of things straight!
(\ /)
(O.o)
(><)

Re: How to open a existing forn ?

umitmax15-Jun-07 9:33

umitmax

15-Jun-07 9:33

For a MDI Application, You can open or show your mdi child forms from a mdi child form.

private void OpenFormIfNotExists(Form[] Formlar, Form MainForm, Form OpeningForm)
{
bool Foundf = false;
foreach (System.Windows.Forms.Form SearchingForm in Formlar)
{
if (OpeningForm.Name.Trim() == SearchingForm.Name.Trim())
{
SearchingForm.BringToFront();
Foundf = true;
break;
}
}
if (!Foundf)
{
System.Windows.Forms.Form OpForm = OpeningForm;
OpForm.MdiParent = MainForm;
OpForm.Show();
}
}

Usage:

OpenFormIfNotExists(this.MdiParent.MdiChildren, this.MdiParent, new MyNewMDIChildForm());
OMG | :OMG:

Umit

WS and DesktopApplication

Andrei Ungureanu14-Jun-07 22:53

Andrei Ungureanu

14-Jun-07 22:53

Hello,

I have a small problem. I built a ASP.NET WebService that retrieves data from a database. I have a function in the webservice that receives a parameter, and the return type is an object created by me. UserInfoCollection is a class created by me that contains an ArrayList with will cotain several UserInfo objects.

This is the function in the webservice:

<br />
    [WebMethod]<br />
    public UserInfoCollection GetUsersByType(AccountTypes account)<br />
    {<br />
     UserInfoCollection collection = new UserInfoCollection();<br />
     <br />
     //fill the collection with data from database<br />
     <br />
     return collection;<br />
    }<br />

To use the methods from the webservice I build a proxy using the WSDL utility. This is how i use this function:

<br />
WSService ws = new WSService();<br />
UserInfoCollection _uicUsers = ws.GetUsersByType(type);<br />

Using debug mode I saw that the webservice inserts into the collection everything that he has to, but when the webservice returns the collection object, in the application the object has no values inside. After the return statement, the webservice reinitializez the object. My question is that anyone has a suggestion to get past this problem.

Thank you.

Do your best to be the best

Re: WS and DesktopApplication

Pete O'Hanlon15-Jun-07 0:30

Pete O'Hanlon

15-Jun-07 0:30

Are your UserInfoCollection and UserInfo classes marked as Serializable?

Deja View - the feeling that you've seen this post before.

Re: WS and DesktopApplication

Andrei Ungureanu15-Jun-07 1:04

Andrei Ungureanu

15-Jun-07 1:04

Hey,
First of all thanks for your reply.

The classes are not marked as Serializable, but I also have a function in the WebService that returns a UserInfo object and it works perfect. If I use the UserInfoCollection...problems. I found some way to go around, but this bugs me a lot...because I can't understand why it's doing this.

Do your best to be the best

Re: WS and DesktopApplication

leppie15-Jun-07 0:34

leppie

15-Jun-07 0:34

The data you want to expose need to be public. Remember webservices only make a wrapper for your class's public data.

xacc.ide-0.2.0.74 - now with C# 3.5 support!

Re: WS and DesktopApplication

Andrei Ungureanu15-Jun-07 1:06

Andrei Ungureanu

15-Jun-07 1:06

Hey,
Thanks for your reply.
The classes are marked as public and the methods that I need are also public, but in debug mode when the webservice returns the collection object first of all it reinitialize my private objects and then calls the constructor of the class. These classes I talk about are wrapped in a DLL and imported in the WS.

Do your best to be the best

Maximize glitches

sinosoidal14-Jun-07 22:48

sinosoidal

14-Jun-07 22:48

Hi,

I'm working on a app which workspace is contained in one splitcontainer that for its turn is also inside a splitcontainer.

That workspace is a form and i told it to always maximize.

If i want to make always maximized i told the splitcontainers to do the following operations when moved:

if (workspace != null)
{
workspace.WindowState = FormWindowState.Normal;
workspace.WindowState = FormWindowState.Maximized;
}

The thing is that i cant see a imediate adapation of the form. I can perfectly note is getting smallerand then getting bigger, occupiyng the full area.

Is there a way of making this adaptation more smooth?

Thx,

Best regards,

Nuno

Dll Versions

umashankergr814-Jun-07 22:36

umashankergr8

14-Jun-07 22:36

Hi All,

Can anyone explain me in detail on creating different versions of dlls, creating Strong names, and implemeting the dll in a client application. I want to use both the versions of the dll in my client application.
Please explain with steps i have to make..

Thanking you All,

Umashanker.K

Re: Dll Versions

Manas Bhardwaj14-Jun-07 22:39

Manas Bhardwaj

14-Jun-07 22:39

This link explains about strong names http://msdn2.microsoft.com/en-us/library/wd40t7ad.aspx[^]

For using both the versions in your application you will need to put them in GAC. Rose | [Rose]

Re: Dll Versions

umashankergr814-Jun-07 23:12

umashankergr8

14-Jun-07 23:12

Any other explanaton other than the above reply, is highly appreciated.. I need to know step by step and want to understand the concepts of strong name, dll versioning and GAC.. Will any one help me..

Umashanker.K

Re: Dll Versions

Mali Perica15-Jun-07 3:55

Mali Perica

15-Jun-07 3:55

Follow the link Manas has recommended you. You will find step by step guide for signing your assembly with strong key, and you can also find a lot of informations about GAC.

You can also check out these two articles on CP:
DLL Hell Solution in DOTNET
Loading and Unloading an Assembly at Runtime

How to avoid reading first three lines in a text file?

meeram39514-Jun-07 21:15

meeram395

14-Jun-07 21:15

Hi,

I'm developing an Windows Application with C#. In that the application will read an input file while starting. This input file contains a version no in the first line, then heading, then an underline. I need to read the data after this underline. Following is the code I have written for fetching the path for input file and read the lines:

FileStream fspath = new FileStream(strLiveRicsFilePath,FileMode.Open,FileAccess.Read,FileShare.ReadWrite);
StreamReader srReadFile = new StreamReader(fspath,System.Text.Encoding.UTF8);
string readline;
readline = srReadFile.ReadLine();

Now I want to tell the StreamReader to read the data after the underline. How to code the same in C#. Any help in this regard would be great. Thanks in advance.

Meeram395

Re: How to avoid reading first three lines in a text file?

lmoelleb14-Jun-07 22:24

lmoelleb

14-Jun-07 22:24

Just call ReadLine three times - or until you read the underline or something.

If you know the length in bytes, you can also seek to the right posistion. This will save you at a fraction of a milisecond in performance, and in return leave you with some fragile code that will break wihout warning if anything change - your choice. Smile | :)

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