C# Discussion Boards - CodeProject

Re: Save WebCam Capture with a resulution of 2MP

19-Mar-09 4:57

Safe from what, the rain? just give it an umbrella Wink | ;)

Life goes very fast. Tomorrow, today is already yesterday.

Dave Kreskowiak19-Mar-09 8:26

Dave Kreskowiak

19-Mar-09 8:26

You'll have to consult the documentation on the library you're using to get the video from the webcam.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

Re: Save WebCam Capture with a resulution of 2MP

nukebold19-Mar-09 8:45

nukebold

19-Mar-09 8:45

Which documentation? I don't know how to start, which library should I take?

Re: Save WebCam Capture with a resulution of 2MP

Dave Kreskowiak19-Mar-09 11:01

Dave Kreskowiak

19-Mar-09 11:01

Contact the manufacturer of the webcam to see if they put out a SDK (Software Development Kit) that you can use. It should come with the libraries and the documentation on how to use them.

A guide to posting questions on CodeProject[^]

Dave Kreskowiak
Microsoft MVP
Visual Developer - Visual Basic
2006, 2007, 2008

convert class to dll

sanforjackass19-Mar-09 4:42

sanforjackass

19-Mar-09 4:42

hello all can any body help me to convert class to dll file

DaveyM6919-Mar-09 4:44

DaveyM69

19-Mar-09 4:44

Set project output type to Class Library

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)

sanforjackass19-Mar-09 5:39

sanforjackass

19-Mar-09 5:39

thank you so much

musefan19-Mar-09 4:44

19-Mar-09 4:44

Yeah Visual Studio can help you do that. i.e. you IDE would be the best place to start, you basically want to compile your project as a .DLL file

Life goes very fast. Tomorrow, today is already yesterday.

Cracked-Down19-Mar-09 5:29

Cracked-Down

19-Mar-09 5:29

Next time please do googling before posting any question

anyways here we go

use the following command from command prompt of visual studio

csc /target:library File.cs

if you are usinf visual studio IDE use following steps to do so

1.goto file->new ->project
2.select class library
3.Provide name to class library
4.click ok
4.write down your class in file opened
5.build the project
6.you will get your dll in path application dir/bin/debug

so simple

Send an email witch c#

abbd19-Mar-09 4:32

abbd

19-Mar-09 4:32

&Hello,

How we can send the e-mails witch c#? thank you verry mutch.

Xmen Real 19-Mar-09 4:35

Xmen Real

19-Mar-09 4:35

At least click me[^]

TVMU^P[[IGIOQHG^JSH`A#@`RFJ\c^JPL>;"[,*/|+&WLEZGc`AFXc!L
%^]*IRXD#@GKCQ`R\^SF_WcHbORY87֦ʻ6ϣN8ȤBcRAV\Z^&SU~%CSWQ@#2
W_AD`EPABIKRDFVS)EVLQK)JKQUFK[M`UKs*$GwU#QDXBER@CBN%
R0~53%eYrd8mt^7Z6]iTF+(EWfJ9zaK-iTV.C\y<pjxsg-b$f4ia>

-----------------------------------------------
128 bit encrypted signature, crack if you can

Jacob Dixon19-Mar-09 4:36

Jacob Dixon

19-Mar-09 4:36

With MailMessage and SmtpClient.

MailMessage mm = new MailMessage("from", "to", "subject", "body");
SmtpClient sc = new SmtpClient("mail server", port);
sc.Send(mm);

musefan19-Mar-09 4:37

19-Mar-09 4:37

abbd wrote:
the e-mails witch

she sounds scary Unsure | :~

Life goes very fast. Tomorrow, today is already yesterday.

Xmen Real 19-Mar-09 4:42

Xmen Real

19-Mar-09 4:42

nah my firewall is working...

-----------------------------------------------
128 bit encrypted signature, crack if you can

musefan19-Mar-09 4:46

19-Mar-09 4:46

I think you need a 'waterwall' for witches Laugh | :laugh:

Unless you burn them at the stack!!! Poke tongue | ;-P

Life goes very fast. Tomorrow, today is already yesterday.

Yusuf19-Mar-09 5:18

Yusuf

19-Mar-09 5:18

abbd wrote:
witch c#

Is this the upcoming version of C#? Where did you download it? Suspicious | :suss:

Yusuf

Oh didn't you notice, analogous to square roots, they recently introduced rectangular, circular, and diamond roots to determine the size of the corresponding shapes when given the area. Luc Pattyn[^]

Ivan Pavlenko20-Mar-09 3:30

Ivan Pavlenko

20-Mar-09 3:30

You can do somesing like this:

private string login = "test@ukr.net";
private string password = "test";
private string smtp_host = "smtp.ukr.net";
int port = 465;
public Mailer()
{

System.Net.Mail.SmtpClient mysmtp = new SmtpClient();
mysmtp.Host = smtp_host;
mysmtp.Port = port;
mysmtp.EnableSsl = true;
mysmtp.Credentials = new System.Net.NetworkCredential(login, password);
MailAddress from = new MailAddress("test@ukr.net", "user anonimus =)");
MailAddress to = new MailAddress("to@mathcentre.com.ua");
MailMessage msg = new MailMessage(from, to);
msg.Subject = "programm test";
msg.Body = "test!!!!!!!!!\n see ya!";
mysmtp.Send(msg); // this code works but I dont now how use certificates that
//used by some mail-servers =(
}

Threadsafe property

Philip.F19-Mar-09 4:24

Philip.F

19-Mar-09 4:24

Hi everybody!

just wanted to ask a short question:
I have a property, that should be (externally) threadsafe. Is this good coding style, or do you have a better solution?

class Manager
{
	private object locker = new object();

	private MyType threadSafeProperty = new MyType();
	public MyType ThreadSafeProperty
	{
		get { lock (locker) { return threadSafeProperty; } }
               set { lock (locker) { threadSafeProperty = value; } }
	}
}

Thank you, Phil

I won’t not use no double negatives.

Roger Alsing19-Mar-09 4:36

Roger Alsing

19-Mar-09 4:36

AFAIK, "lock" is not recomended since it can result in permanent lockups of an object for ever.
Monitor.TryEnter does the same but takes an argument specifying timeout interval.

Also, the locker object should be readonly.

My Blog

Nicholas Butler19-Mar-09 4:38

Nicholas Butler

19-Mar-09 4:38

This will not work if your intent is to synchronize access to the MyType instance. You are only holding the lock while getting the reference to the instance. You then return the instance to the calling code which may then use it without synchronization.

The solution depends on what the calling code does with the MyType instance. You could expose a synchronization object in the Manager class, but that is open to abuse. Or you could add methods for manipulating the instance through the Manager class and use locks in those methods. YMMV.

Nick

----------------------------------
Be excellent to each other Smile | :)

Philip.F19-Mar-09 5:04

Philip.F

19-Mar-09 5:04

Thank you for you answer Nick.

That was actually why asked this, I had a bad feeling about that Wink | ;)

MyType is some kind of generic List. I wanted to ensure that I had exclusive access to the list as long as I was manipulating it.
Stupid idea now Wink | ;)

I will expose the lock and acquire it as long as I am manipulating the list.

Phil

I won’t not use no double negatives.

Nicholas Butler19-Mar-09 6:58

Nicholas Butler

19-Mar-09 6:58

No problem.

You might like to read http://www.albahari.com/threading/[^] Smile | :)

Nick

----------------------------------
Be excellent to each other Smile | :)

led mike19-Mar-09 5:00

led mike

19-Mar-09 5:00

Philip. Your concept of locking an object while returning a reference to it as a means of synchronization indicates you are far from understanding the fundamental concepts of synchronization. I strongly urge you to study the subject more before attempting any implementation requiring thread synchronization.