Visual Basic

Re: Communication With VB

3-Apr-07 23:50

1 - help me is not a meaningful header
2 - VB6 or VB.NET ?
3 - What do you mean by 'sharedfolder' ?

Christian Graus - Microsoft MVP - C++
Metal Musings - Rex and my new metal blog
"I am working on a project that will convert a FORTRAN code to corresponding C++ code.I am not aware of FORTRAN syntax" ( spotted in the C++/CLI forum )

Communication With VB

Mr ericsson3-Apr-07 20:49

Mr ericsson

3-Apr-07 20:49

Hi All

I want to know the methode of how could i connect a terminal page with My VB application.
in another way,i have an access contole device that gives me as an output a terminal line:
ex:

01\01\2007 12:23AM 1020 1

it containes date time and id number(1020) and id verified (1)

all that i need is a way to link my device from COM port to a simple vb application that contains a data base

thanks in advance

Dave Kreskowiak4-Apr-07 5:12

Re: Communication With VB

4-Apr-07 5:12

This is normal Serial Communication stuff. If you're using VB.NET, you can Google for examples with "VB.NET SerialPort class". If using VB6, you'll use "VB6 Serial Communication".

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

Mr ericsson9-Apr-07 19:40

Mr ericsson

9-Apr-07 19:40

thanks mr Kreskowiak i will try it as soon as possible. Smile | :)

Play Video and Audio

Kumaran21cen3-Apr-07 20:09

3-Apr-07 20:09

Hi I want to play a mpg file in media player in vb.
(i.e.) I have a button called "Play" in VB. If user clicks the play button. Automatically it will open Windows Media Player and play the Appropriate files.

Note : It has to support both 2000 and XP systems

Please help me...

Thanks & Regards
Kumaran

Re: Play Video and Audio

Chatura Dilan3-Apr-07 20:18

Chatura Dilan

3-Apr-07 20:18

System.Diagnostics.Process.Start(Filename)
Eg. System.Diagnostics.Process.Start("C:\myVidioFile.mpeg")
Smile | :)

Chatura Dilan

Re: Play Video and Audio

Kumaran21cen3-Apr-07 20:43

3-Apr-07 20:43

Hi Chatura Dilan,

I am asking in Visual Basic not in Visual Basic.NET

Please tell me..

Thanks & Regards
Kumaran

Re: Play Video and Audio

Christian Graus3-Apr-07 20:48

Send mail without openig SMTP Relay server

3-Apr-07 20:48

ShellExecute is how to run the default program, I *think* VB6 does that.
If not, can you interop it in VB6 ? ShellExecute is an API call ( that is, something the OS offers to C and C++ )

nitin_ion3-Apr-07 19:38

nitin_ion

3-Apr-07 19:38

I have an email sending application and it works fine for internal emails.

But when i try to send mails to external domains e.g. yahoo, hotmail etc it does not send them as relay server is stopped on SMTP.

Is there a way i can send emails to external domains without opening relay.

Dave Kreskowiak4-Apr-07 3:54

4-Apr-07 3:54

You'll either have to use relay or an external SMTP server to send your mail.

If using realy, the upstream servers must trust your SMTP server for this to work, which probably won't happen in your lifetime if the upstream server is an ISP.

If using an external SMTP server you'll have to have a user account on it in order to use it at all.

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

nitin_ion4-Apr-07 21:31

nitin_ion

4-Apr-07 21:31

We opened the relay and tried using the credentials

Dim objSMPT As New System.Net.Mail.SmtpClient
objSMPT.DeliveryMethod = SmtpDeliveryMethod.Network

Dim ic As New System.Net.NetworkCredential

ic.Domain = "ionsoftnet.com"
ic.UserName = ""
ic.Password = ""

objSMPT.Credentials = ic

if i pass wrong credentials or blank even then the mail is sent which should not happen as others can use it also.

Dave Kreskowiak5-Apr-07 1:46

5-Apr-07 1:46

Well that sounds like a security problem with your mail server, doesn't it?

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

nitin_ion5-Apr-07 1:50

nitin_ion

5-Apr-07 1:50

Do you have any article or link so that we can solve this problem.
It is critical for us.

Dave Kreskowiak5-Apr-07 13:17

5-Apr-07 13:17

All you need is the documentation on your SMTP server.

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

Problem in Video

Kumaran21cen3-Apr-07 19:07

3-Apr-07 19:07

Hi,

Iam creating the VB Applicaition. In that i have buttom called play. If user click the button. then it launces the mediaplayer and play the appropriate .mpeg file. It works fine in Win2k. But I get audio only , no video in WinXP. Even i Installed the appropriate CODEC files as well.

The CODE is here :
Private Declare Function ShellExecute Lib "shell32.dll" Alias "ShellExecuteA" (ByVal hwnd As Long, ByVal lpOperation As String, ByVal lpFile As String, ByVal lpParameters As String, ByVal lpDirectory As String, ByVal nShowCmd As Long) As Long

Private Sub PlayVideo_Click()
ShellExecute Me.hwnd, "open", App.Path & "\Videos\pirates.mpeg", "", "", 0
End Sub

Please tell me whats the problem....

Thanks & Regards
Kumaran

Christian Graus3-Apr-07 19:10

3-Apr-07 19:10

You're calling shellexecute. The only way there can be a problem, is if the default app on the XP machine cannot play the video.

Kumaran21cen3-Apr-07 19:19

3-Apr-07 19:19

I want to play the video as well. can u tell how to play video as well as audio in the mediaplayer using VB

Thanks & Regards
Kumaran

Christian Graus3-Apr-07 21:38

3-Apr-07 21:38

I can only reiterate - if the video won't play, it's a problem on the machine. VB isn't actually doing *anything* in your code, it's passing the video off to the program that's registered to play it.

Dave Kreskowiak4-Apr-07 3:51

4-Apr-07 3:51

If the video doesn't play, you simply don't have the correct CODECs installed. Your VB code has absolutely nothing to do with the playing of the video.

All you have to do to test this is to double-click your Pirates.mpg file and watch Media Player try to play it. You're going to need to install the correct codecs to make this work.

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

Input mask on text box

harveyhanson3-Apr-07 17:07

harveyhanson

3-Apr-07 17:07

Is there are a way to put an input mask or some type of validation on a text box?

I either want to stop anything apart from upper and lowercase letters as they are typing in the box
or
Load an event on a button press if anything except uppercase and lowercase is in the box.

Any ideas?
Cheers in advance

Krish - KP3-Apr-07 17:32

Krish - KP

3-Apr-07 17:32

can write code to validate the text input in 'key press' event or 'change event' or 'lost focus' event of text box

Ex. for key press event (using VB6)
if (keyascii >= 65 and keyascii <= 90) and (keyascii >= 97 and keyascii <= 122) then
.....
else
.....
end if

Regards
KP

Christian Graus3-Apr-07 17:42

3-Apr-07 17:42

In VB 2005 you can use a masked edit control. In earlier versions, you have to handle the KeyPress event and set e.Handled to true if the key is one you want to reject.

harveyhanson4-Apr-07 1:47

harveyhanson

4-Apr-07 1:47

Hi, sorry, forgot to mention, its for VB.NET 2005.

How does the mark edit control work? I have looked on MSDN but it doestn really help.
I guess its nothing like excel's input mask!?

Christian Graus4-Apr-07 10:04