Re: Generate Sound - C# Discussion Boards

Reelix15-Apr-09 22:21

15-Apr-09 22:21

Hello all!

I'm wondering if anyone has any idea to generate specific frequencies?

I am aware of Console.Beep(), but that plays through the PC-Speaker (Or Console Speaker, as it says in the tooltip)

I'm wondering if there's a way to do this to play through your regular sound device (Eg: Speakers / Headphones)

I thank you for your time!

- Reelix

-= Reelix =-

Re: Generate Sound

OriginalGriff15-Apr-09 22:59

OriginalGriff

15-Apr-09 22:59

The easiest way I know of is to use the system.media.soundplayer class - admitedly this only plays .WAV files, but it should be easy to create the frequencies you want as individual files.

Re: Generate Sound

Reelix16-Apr-09 0:01

Reelix

16-Apr-09 0:01

All 100K+ of them? :p

-= Reelix =-

Re: Generate Sound

OriginalGriff16-Apr-09 0:21

OriginalGriff

16-Apr-09 0:21

Hmm. Might take a little time then.

Why so many - the human hearing range is only 20 -> 20,000 Hz. Are we writing software for bats now?

Re: Generate Sound

Reelix16-Apr-09 0:26

Reelix

16-Apr-09 0:26

Heh heh

I just want a free input on the frequency you can enter Smile | :)

I was thinking of having a .wav file at a pre-set frequency, then somehow modifying the output frequency based on what the user inputs, then play that...

Also, I've realised that Googling "C#"+Piano (To look for an example of ones already made) has rather irritating results, as you might imagine Wink | ;)

-= Reelix =-

Re: Generate Sound

DaveyM6916-Apr-09 0:16

DaveyM69

16-Apr-09 0:16

System.Media.SoundPlayer has a constructor overload that has a Stream parameter[^] so you can construct your waveform in a MemoryStream and pass that to the SoundPlayer's constructor.

Dave
BTW, in software, hope and pray is not a viable strategy. (Luc Pattyn)
Visual Basic is not used by normal people so we're not covering it here. (Uncyclopedia)
Why are you using VB6? Do you hate yourself? (Christian Graus)

Re: Generate Sound

Ravi Bhavnani16-Apr-09 2:20

Ravi Bhavnani

16-Apr-09 2:20

Clickety[^]

/ravi

My new year resolution: 2048 x 1536
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Re: Generate Sound

Reelix16-Apr-09 2:33

Reelix

16-Apr-09 2:33

Wow - I never knew about that!

Thanks!!! Big Grin | :-D

-= Reelix =-

Which Data Type to be Use.

Anubhava Dimri15-Apr-09 20:45

Anubhava Dimri

15-Apr-09 20:45

Hi All,
Which data type to be use while my value is 21 digit long for mathematical operation.

If you can think then I Can.

Re: Which Data Type to be Use.

Giorgi Dalakishvili15-Apr-09 20:57

Giorgi Dalakishvili

15-Apr-09 20:57

There is not such class in .Net that can accommodate 21 digit numbers yet (well, there is but it's internal). It will be available in .Net 4.0. Until that you will have to search for a third party class that provides such functionality - or write your own one Smile | :)

Giorgi Dalakishvili

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Re: Which Data Type to be Use.

Ravi Bhavnani16-Apr-09 2:23

Ravi Bhavnani

16-Apr-09 2:23

Will Decimal[^] work for you?

/ravi

My new year resolution: 2048 x 1536
Home | Articles | My .NET bits | Freeware
ravib(at)ravib(dot)com

process operations

shefa' isied15-Apr-09 20:43

shefa' isied

15-Apr-09 20:43

how can i get all operations for a given process using c# like operations column in procmon tool?
process operations like (createfile,regopenkey,regqueryvalue...)

Cannot connect a datagridview to a datasource

schardt823715-Apr-09 20:43

schardt8237

15-Apr-09 20:43

Hi, I'm rather new here and not sure if this is the right section to post this in. Anyways, I'm using VS2008 with MySQL and trying to connect a datagridview to a datasource. I have already been able to connect to the database and retrieve / insert data. When I click finish after choosing what database objects I want in the dataset, it throws an error for each table selected saying "could not get column information for database object named [insert table name]." I have searched Google, but have not been able to find anything. Any help resolving this would be great. Thanks.

Re: Cannot connect a datagridview to a datasource

Henry Minute15-Apr-09 23:31

Henry Minute

15-Apr-09 23:31

lordvader781 wrote:
I'm using VS2008 with MySQL

I do not have a solution for your problem, but I would suggest the following:

1. I assume that you are using a third-party library for the MySQL part, so asking on their site might get a better response.
2. Post on the MySQL site, making sure that you mention the library you are using.

Hope you find some help. Smile | :)

Henry Minute

Do not read medical books! You could die of a misprint. - Mark Twain
Girl: (staring) "Why do you need an icy cucumber?"
“I want to report a fraud. The government is lying to us all.”

Re: Cannot connect a datagridview to a datasource

schardt823716-Apr-09 8:31

schardt8237

16-Apr-09 8:31

I'm not sure what you mean by third-party library. I am using MySQL Server 5.1, with MySQL Connector Net 5.1.7, and the MySQL ODBC 3.5 driver.

Re: Cannot connect a datagridview to a datasource

Henry Minute16-Apr-09 8:49

Henry Minute

16-Apr-09 8:49

lordvader781 wrote:
with MySQL Connector Net 5.1.7, and the MySQL ODBC 3.5 driver.

If those were not written/released by Microsoft, they are Third-Party Libraries.

The site for MySQL Connector Net says that it is known to work with VS 2003, no mention of more recent versions.

The point is, that by going to the site for the library for example[^], finding their support forum and asking your question there, you are more likely to get good quality replies. I would guess that most Devs using these fora are MS SqlServer users. I could be wrong, but I don't think so. On the MySql site I would guess most Devs would be MySql users. Therefore you are more likely to come to the attention of someone that knows the foibles/workings of a MySql product, on a MySql site.

Can not read complete data from a excel sheet cell using oledb - Urgent

mishigun15-Apr-09 20:37

mishigun

15-Apr-09 20:37

Hi,
I have excel sheet in which i have a column contains more than 1000 word i am not been able to read the complete data, i have checked the dataset using breakpoint it shows only about 100 or so words. Is there any way so that i can read complete data from that cell in dataset.I have already serach on MSDN and Google but i couldnt found any thing related to this.

Thank You

Connecting Server Using NetBios Protocol in DotNet

Member 24062015-Apr-09 20:24

Member 240620

15-Apr-09 20:24

Hi All

We have a different which only has NetBIOS No TCP/IP available neither we can install TCP/IP. Now on that system there is a Server called as 'MAIN' whcih we can access using a DLL, but that DLL we can be used only in C++ we cannot use it in DOTNET.

Can anyone Suggest me or provide me some code as how to communicate with NetBIOS using DOTNET.

Please I am struggling with this thing from a Week and I am not getting any BreakThrough.

Regards

Bipin Singh

Re: Connecting Server Using NetBios Protocol in DotNet

Henry Minute15-Apr-09 23:46

Henry Minute

15-Apr-09 23:46

Member 240620 wrote:
we can access using a DLL, but that DLL we can be used only in C++ we cannot use it in DOTNET.

Most Dlls that are accessible from C++ can be accessed in .NET using a technique called P/Invoke. I would therefore suggest that you research this technique. There's lots of stuff out there for it.

Not knowing which Dll you are talking about, makes answering your question more difficult than it could be, but if it is netapi32.dll then it most certainly can be accessed from .NET.

In any event I Googled for 'netbios c#' and I got loads and loads of hits, so I would suggest that you Google Harder.

Re: Connecting Server Using NetBios Protocol in DotNet

Member 24062016-Apr-09 2:28

Member 240620

16-Apr-09 2:28

Thanks Henry,
I could connect using netapi32.dll but here I am having one more DLL belonging to one of APIs we are using in c++, APILIB32.dll. I guess when I am trying to access this dll its not giving me proper result coz my send and recv functions for netbios are defined in this dll only and I am unable to send and recv data properly. Please let me know a proper way to use a c++ dll so that I can use the functions defined in it.

Any link directing to some similar problem would be highly appreciated as I did loads of googling which led me to use netapi32.dll but still finding me helpless in using my api dll (APILIB32.dll).

Thanks
Bipin

Re: Connecting Server Using NetBios Protocol in DotNet

Henry Minute16-Apr-09 3:35

Henry Minute

16-Apr-09 3:35

You might take a look at this site[^], if you haven't already done so. From there you can download a VS add-in which can help with converting C++ calls to .NET useable methods. Since you already know the C++ signatures for the calls you need, you should be able to, at the very least, get some of them working.

Incidentally the site has a complete conversion of netapi32.dll, for anything that you haven't already converted. I suppose that as a last resort, if you know what the C++ methods do, you can write your own routines, using netapi32.dll.

Group Policy

Siddharth Rastogi15-Apr-09 20:20

Siddharth Rastogi

15-Apr-09 20:20

Hello All...

Do U know how to work with Group Policy in C#.
Any Samples or Docs...?

Thx 4 reading Smile | :)

Enjoy...

Siddharth

Re: Group Policy

subhabasu30-Apr-09 23:36

subhabasu

30-Apr-09 23:36

Hi Siddharth,
I'm also stuck at this problem from last 2 days. Sniff | :^)

And it seems to me that either no one have tried that thing, or it can't be done using only C#. May be it can be done using WMI. Confused | :confused:

I dont know, what to do. Cry | :((

If you get any solution don't forget to post that in this thread.
Best of luck.
Bye.
Subha Basu

Re: Group Policy

Siddharth Rastogi7-Aug-09 3:09

Siddharth Rastogi

7-Aug-09 3:09

Hi...

Don't mind for late reply.
I was searching this, for RND in Rolebase management system.

Now, I am working On ADAM + AZMAN for the RoleBase.

Whts ur requirement? Some thing like that or Only GroupPolicy.

Enjoy!! Roll eyes | :rolleyes:

actualizing the toolbar status in C#

Tjie Pouw15-Apr-09 20:16

Tjie Pouw

15-Apr-09 20:16

is there any event which similar with the ON_UPDATE_COMMAND_UI thread on VC++ in C#?
or what should i do to make the toolbar button change its status (like checked or unchecked, disable and enable) automatically?

thanks

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