can some one help me with this end of ststement Expected error - Visual Basic Discussion Boards

I need to convert a floating number to hex, then convert that number (Hex number) to decimal.

Can anyone help please!

A hex representation is going to be a string, so use string.format. Then use convert.ToDecimal.

I've never seen a floating point hex number before, what do you need that for ?

Christian

I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer

Hi,

Could you tell me how to change a file's information such as description, comments, version, etc. I know I could get all this using the FileVersionInfo.GetVersionInfo but I am looking for the .SetVersionInfo equivalent.

Thanks,

Zenu

There is no SetVersionInfo equivalent.

There are no APIs to change versions, comments, and none needed. You don't change a version or comments of a file created by anyone but yourself, and you can do that through the various tools by which files are created - MS Office. Visual Studio,. etc.

You can change File Atrributes through both the CreateFile and SetFileAttributes APIs. You can change a file's creation, modification, and last access dates through SetFileTime.

Robert

Thanks for your response Rebort. No stealing I promise;).

I have a requirement to copy various files from one directory to another and then delete the original file. I also need to leave a file behind with information about the original. I was hoping to place this information in the comment field of this file, not the original. So in essnce I need to add this information during the creation of the replacement file.

BTW, you could right click a file and change these fields so why would you not be able to change it in code?

Any help would be appreciated.

Thanks,

Zenu

A compiled DLL or OCX does not allow you to change any of this information. In the case of a DLL the information is added into the compiled binary from a resource script that adds the information at compile time. There are OLE methods that allow this information to be read but not modifed, other than the file times. The only legitimate way to change version numbers etc. is to change the resource script and recompile, although there may be a way to hack the binary image.

But yes, it is true that you can right click certain types of files and change this stuff - for types that you could open, edit, and save yourself using the appropriate tools, like Word documents, etc.

This information is stored in some kind of summary information stream that is saved in the file. Assuming that the file you want to change allows you to do this, then at least in principle you can do it in code - obviously the Windows namespace shell tools have the capability to change the stream and resave the file.

In practice, the shell apis are poorly documented and pretty difficult to work with, and especially so in VB. Some types cannot be understood by VB6, and I don't kow about NET.

But if you want to try, I would start by looking at the various shell function header files in the Include folder of VC++, and see if you can find the function prototypes that allow Windows Explorer to read and write this information.

I will have a look at these function header files.

Thanks for the information

Zenu

Dim ret_code as integer = socket.IOControl _
(SIO_RCVALL, bin, bOUT)

i get the error End of Statement Expected on the Above line of code

Imports System
Imports System.Windows.Forms
Imports System.Net.Sockets
Imports System.Net
Imports System.Threading
Imports System.Text

Public Class Form1

Inherits System.Windows.Forms.Form

Public listener As Thread

Private Sub btnstart_Click(ByVal sender As Object, _
ByVal e As System.EventArgs)
btnstart.Enabled = False
btnstop.Enabled = True
listener = New Thread(New ThreadStart(AddressOf run))
listener.Start()
End Sub

Private Sub btnstop_Click(ByVal sender As Object, _
ByVal e As System.EventArgs)
btnstart.Enabled = True
btnstop.Enabled = False
If Not listener Is Nothing Then
listener.Abort()
listener.Join()
listener = Nothing
End If
End Sub
Public Sub run()
Dim len_receive_buf As Integer = 4096
Dim len_send_buf As Integer = 4096
Dim receive_buf() As Byte = New Byte(len_receive_buf) {}
Dim send_buf() As Byte = New Byte(len_send_buf) {}
Dim cout_receive_bytes As Integer
Dim socket As Socket = New _
Socket(AddressFamily.InterNetwork, _
SocketType.Raw, ProtocolType.IP)
socket.Blocking = False
Dim iphost As IPHostEntry = _
Dns.GetHostByName(Dns.GetHostName())
socket.Bind(New _
IPEndPoint(IPAddress.Parse _
(iphost.AddressList(0).ToString()), 0))
socket.SetSocketOption(SocketOptionLevel.IP, _
SocketOptionName.HeaderIncluded, 1)
Dim bin As Byte() = New Byte() {1, 0, 0, 0}
Dim bout As Byte() = New Byte() {0, 0, 0, 0}
Dim sio_rcvall As Integer = &H98000001 _
dim ret_code as integer = socket.IOControl _
(SIO_RCVALL, bin bout)
Do
Dim ar As IAsyncResult = socket.BeginReceive _
(receive_buf, 0, _
len_receive_buf, SocketFlags.None, Nothing, Me)
cout_receive_bytes = socket.EndReceive(ar)
Receive(receive_buf, cout_receive_bytes)
Loop
End Sub
Public Sub Receive(ByVal buf As Byte(), ByVal len As Integer)
If buf(9) = 6 Then
lbpackets.Items.Add(Encoding.ASCII.GetString _
(buf).Replace(Chr(0), " "))
End If
End Sub
End Class

You're killing yoursel;f with all these line continuations. Just don't use them this much.
This is what got you into the trouble. Remove the line continuation character (_) from the line BEFORE the one that threw the error:

socket.Bind(New _
    IPEndPoint(IPAddress.Parse _
        (iphost.AddressList(0).ToString()), 0))
socket.SetSocketOption(SocketOptionLevel.IP, _
        SocketOptionName.HeaderIncluded, 1)
Dim bin As Byte() = New Byte() {1, 0, 0, 0}
Dim bout As Byte() = New Byte() {0, 0, 0, 0}
    ' This next line caused the error... 
Dim sio_rcvall As Integer = &H98000001 _
dim ret_code as integer = socket.IOControl _
    (SIO_RCVALL, bin bout)
Do

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

cool it is working now ty for the help

I don't know if this affects C#, but it was pointed out to me that a .NET application uses huge amounts of memory. I was wondering if anyone could shed some light on this or send me some links on Memory Management?

For example, create a new VB.NET Windows Forms project. Do NOT add any code to the Form. Run the program and look in the task manager under your Program Name. You'll notice probably about 8,000 - 12,000 kb of memory being used. Now, Minimize the Form and the Memory drops to 600 - 650kb!!! OMG | :OMG:

Restore the Form and now it only uses 1500 - 2000 Kb of Memory! What in the world is going on!? WTF | :WTF:

Has anyone else noticed this? I have a feeling it has something to do with GDI and Painting but I am not sure.

It's nothing you have to worry about and just about everyone has noticed this.

When your app is launched, you have the entire weight of the .NET Framework loaded behind it, taking up a bunch of RAM. When your app is minimized, a bunch of data and code is moved to the page file and out of RAM since it's not being used by a foreground process. When your app is maximized again, only the data and code that gets executed and referenced gets moved back into RAM and out of the page file. When the is being used and exercised, more data and code will get moved back into RAM while seldom used data and code gets moved back to the page file. It's that simple.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Rage - do you happen to know if, in a System Tray application, the memory remains allocated? Looking at the Task Mgr, it seems that my fairly simple app is sucking 12MB while the icon just sits there. Thanks!

Hal in AZ

Same thing. When the .NET Framework detects Windows getting low on memory, it'll start swapping things to the pagefile as needed.

No! You're application will NOT hold onto 12MB of physical RAM while it's idling AND the system needs memory. If Windows can afford to let an application be a hog for awhile, it will. When memory starts to run low, the .NET Framework will start tightening its belt. Until then, there's no reason why your application and the Framework can't stay in memory. It helps with performnace if there is no page swapping going on.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Thanks Dave! That makes it less painful.

Hal in AZ

How can i add description or tooltip about my function and their parameters just the way microsoft provide for their functions.

if u mean to add descriptions to show in design view, USE COMPONENT MODEL NameSpaca , For Example;

Dim proItemCount as Integer=0
<system.componentmodel.description("returns items="" count="" in="" list")="">

public readonly property ItemCount as Integer<br /> Get<br /> return proItemCount<br /> End get<br /> end property

if u mean to show them in code view. i think it is prerogative for Microsoft. I tried a lot of method, but i couldnt any way.

Listen the same song when writing code, your concantrate will increasingly increase. #1 Britney Spears (it's my PreRogative) #

Dim proItemCount as Integer=0
<System.ComponentModel.Description("item Count in list.")>public readonly property ItemCount as Integer
Get
return proItemCount
End get
end property

==============================================================
SORRY i forgot to checked " Do Not treat <'s as HTML tags" Smile | :)

==============================================================

If your talking about the descriptions you see in Intellisense, it's not supported natively by VB.NET yet (it will be in Visual Studio .NET 2005). To get this to work in 2002/2003 you'll have to install an add-on such as the VBCommentor PowerToy, found here on GotDotNet[^].
This will let you comment your code in the appropriate format and the VBCommentor will generate the XML file needed to show your comments in Intellisense.

RageInTheMachine9532
"...a pungent, ghastly, stinky piece of cheese!" -- The Roaming Gnome

Hello there
I have build an image viewer. where user can zoomIn and Zoom Out with some other functionalities.. The problem is when I zoom In or Zoom out the image , I am unable to get the exact location where user clicked on the image as it gives me the location (e.X )on mouse down event of picture box which is the location of picture box where user clicked. but when image is zoomed it internally zooms the pixels. so my location to image control becomes different then the pixel where user exactly clicked on. So when I need to Draw a Circle or Rectangle on that clicked location it appears some where else.
details for zoomIn ::::
picImage.SizeMode = PictureBoxSizeMode.StretchImage
picImage.Width = width + 100
picImage.Height = Height + 100

Can any body tell me the solution for this ??????
to get the X and Y on image when user clicks on the Image Control.

Rizwan Bashir

Yeah, you know the zoom factor, and the scroll position, so do some maths to convert the point you clicked to a point on the image.

Christian

I have several lifelong friends that are New Yorkers but I have always gravitated toward the weirdo's. - Richard Stringer

Hi, I’m preesteya. I’m one of researcher at technical university.

I’m using Microsoft Visual Studio .NET 2003. I created an application using VB.NET. Now I must send .exe of my application for testing. How to create .exe file? As I know every time a program get debug using VB.NET the .exe file will be created in bin folder. But my case I can’t get the .exe file. Can somebody help me please?

Many Thanks
Preesteya.

I'm using NET 2002, but I don't think the IDE changed much:

From IDE menu, select

Build>>Configuration Manager. A dialog is displayed that aloows you to set the active build to release version.

Robert

It should be either in MyProjectDir\bin\Debug or MyProjectDir\bin\Release. If not right click your main project (the bold one) and click preferences. Search a bit... the settings where the build output is going to can be changed here.

btw: Dont forget that the tester needs the framework in order to start your executable Smile | :)

Hi,
Right click on project and what's the Output Type .....
It should be Windows Application and check the
Configuration Properties-->Build-->Output Path where exe is created.......

I hope this will help u................

Reagrds,
Ritesh