StreamReader And System.IO Operations On VolumeNames (Volume{...})

Oct 7, 2010

I have a device (a few actually) that connects via USB to a PC. From here it acts like a basic storage device using FAT32 as the file system. The other thing is that it won't accept drive names (C:, E:, G: etc) to it so instead you need to use its Volume GUID to connect. I have retrieved this painlessley through MountVol.exe but thats where the difficulties ended.

[Code]...

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StreamReader And System.IO Operations On VolumeNames (ie \?Volume{...})?

Sep 12, 2010

I have a device (a few actually) that connects via USB to a PC. From here it acts like a basic storage device using FAT32 as the file system. The other thing is that it won't accept drive names (C:, E:, G: etc) to it so instead you need to use its Volume GUID to connect. I have retrieved this painlessley through MountVol.exe but thats where the difficulties ended.I am not trying to access the file system through VB.NET/C#.net (either will be fine - fluent in both ;) ). In Windows Explorer I can easily visit '\?Volume{71E4C2C7-E511-4B2A-BF5C-569B2B25784E}apic' to access the device and its files. I can also use CMD and the Dir command to go through the files. Just .NET cant seem to cope. I understand the GUID changes on each PC and I am OK with this as I can use MountVol to get the GUID and run the console app with command arguments as it will always be a human initiating the command.

I have tried manually entering the path via Console.ReadKeys but this also fails to even see the directory above and any of the files inside one being 'dev' without an extention. I can use System.IO operations without extensions on "normal" drives (ie those
with letters) so I know it's not the extension causing problems. I did a Try/Catch with a StreamReader pointing to the file to see what was spurted out:

System.ArgumentException: Illegal characters in path.
at System.Security.Permissions.FileIOPermission.HasIllegalCharacters(String[]
str)

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Using System.IO Namespace For FTP Operations?

Aug 19, 2010

I have a few syncing routines that I'd like to use for FTP uploads. However they all use the functions in the IO namespace, and I was wondering whether I could use it to access distant files stored on an FTP server.

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Ignore System Protected Folders "system Volume Information"?

Apr 14, 2010

I want to Ignore System Protected Folders Using My code.i already try Catch ex As UnauthorizedAccessExceptionor

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Get And Set The System Sound Volume?

Nov 16, 2010

Does anyone know how to get and set the system sound volume? I have tried every method I've found on the net and none of them work. I've tried the winmm.dll APIs with no luck. I've also tried waveOutGetVolume/waveOutSetVolume, which didn't work. I'm using Win 7, but need a solution that works on XP+.

Right now I use the VolumeUp keyboard event, but I need to be able to get the volume and set it to a specific level.

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Set System Volume Level?

Feb 25, 2010

I have an application that plays wav and mp3 files using the Microsoft.DirectX.AudioVideoPlayback.Audio()function. It works fine, and I can easily set the volume level of the playback... within limits.

That limit is the system volume level. I can set the playback level for the mp3, but if the system volume is muted or set real low it may still play softly.

So how do I set the master volume level, including making sure it isn't muted?

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System Volume Control?

Nov 4, 2009

caN SOMONE guide me how to make my own system sound control in vb.net like a slider or % or anything!!! just a volume control!

Understandable Answers
1 2 3 4 5
- - - - - Rate yourself And Have A Kitkat

[code].....

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Control System Volume In VB 2010?

Nov 21, 2010

How can I control the Computers volume inside visual basic? (like you have the speaker icon and when you click on it Volume scroll thing) at the bottom left of Windows, but I want it in my program. I am running Windows 7 (if that makes any difference

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How To Adjust System Volume In Win7

Apr 7, 2010

I'm trying to make a utility that will fade out the system volume (for when I fall asleep listening to my music). In XP and prior, controlling the system audio was very simple, however, in Vista and 7, I can't figure out how to do it. Because in Windows 7 each application has it's own volume control, lowering the volume doesn't affect the system overall - only the current app. Can anyone point me to a resource how to do this? Every forum posting that I've found on this topic is about XP, and doesn't work under newer versions of Windows.

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Mute System Volume And Microphone?

Jun 16, 2009

I'm developing video intercom system. i have push button to talk. when user press the push button, i need to increase the system microphone volume and mute the system speaker. While releasing the push button, i need increase the system speaker volume and mute the system microphone volume.

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VS 2008 TrackBars - System Volume?

Oct 4, 2009

I have 2 trackbars (scrolling things) and i have a song playing in a media also but what i want is it to get the left speaker volume in 1 trackbar and the right speaker volume current in another, so when the song is playin it will adjust automatically and display the current left & right speaker volume (example: when the media goes louder the trackbar will probably increase) ive seen it in many programs.

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Make System.IO.StreamReader To A URI?

Oct 8, 2010

im tring to create a program where i could login from a ftp stored in a folder for an example here is my codeing

Dim USERREAD As System.IO.StreamReader = New System.IO.StreamReader("http://websiteurl.com/loginstore" + textbox2.text + ".uxd)

[code].....

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Avoid System Volume Information Folder

Sep 3, 2010

I am using following code to get directory info. it works well if I search topleveldirectory. But when i search alldirectories, it reaches system level information and throws error. Is there any way to avoid searching system level information folder?

Imports System.IO
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As

[Code].....

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Mute System Volume With Command Line?

Nov 16, 2011

I will make the command line tool to mute system volume,[code]...

But i can not use the Me.Handles without a form

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Access To Path F:System Volume Information Is Denied

Jun 2, 2011

[Code]....

This code is for listing all folders including subfolders. but when i run this code i m getting error "Access to Path F:System Volume Information is Denied" How can i ignore this folder and continue scan.? is ther any solution for this error?

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C# - Get Current Volume Of System Sound Device In Windows 7?

Jan 9, 2011

how to get current volume of system sound device in windows 7 ?I looked up in google but every solution returned values like -1, 4686346, ...

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VS 2008 - Reading And Setting System Sound Volume

Dec 20, 2009

I am trying to write a countdown timer I finally succeeded with MSDN. I get to work whatever I wanted, but this drives me nuts: How can I read and set the volume control? I want, once my timer is run down to zero, read out the current system setting, then play a system sound using
Media.SystemSounds.Exclamation.Play()
Over time I like to ramp up the volume to 80% or until one clicks the Alarm off button (then stop the timer, no sound, and reset volume).

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VS 2008 Error: The Volume Does Not Contain A Recognized File System

Aug 17, 2010

I have the following code.

Imports System
Imports System.IO
Public Class frmUpdater


When I try to run this I get the following error: The volume does not contain a recognized file system. Please make sure that all required file system drivers are loaded and that the volume is not corrupted.I am trying to read all drives with FAT16, FAT32 and NTFS.My PC is using NTFS and is running normally.

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VS 2008 - Creating Remote To Turn Up / Down System Volume Via WiFi

Oct 28, 2009

I am working on a little project for my phone creating some sort of remote to turn up/down my system volume via wifi. The phone will send data to a text field on the website lets say such as "vol up" and the vb app sitting on the computer will be constantly reading this text field for key words like "vol up", "vol down". when it see's a recognized command it reacts by turning the volume up and so on. And one more thing: Is it possible to have a vb app that uses http? E.g., sits on port 80 itself and can be accessed via local ip.

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Exe Closes System.IO.StreamReader Kills Program?

Apr 24, 2011

Ok, So I am making a front-end for a program, and it runs the exe with command line arguments. One of those arguments is creating a log file that tells me who the winner is. Currently I have code that runs the app, tell VB when it exits and then does another event. When testing with message box as the other event, works fine.

When running the System.IO.Streamreader the app just closes down on its own and there are no errors shown.

[Code]...

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System.IO.StreamReader Empty Path Name Is Not Legal

Sep 30, 2011

I have a fault with System.IO.StreamReader.

[Code]...

When the program starts, The faultis 'Empty path name is not legal.' How to solve this fault?

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Control The System Volume, Mute, And Output The Current Level To The User

Apr 12, 2012

I have searched the web for code relating to changing the system volume, muting the system volume, and outputing the current level of the volume as an integer, using VB.NET.

All the code that I have found either doesn't work, or is very long.

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VS 2008 Online VB Networking - System.IO.Streamwriter And Streamreader

Jan 14, 2010

I made my own advanced networking system which uses System.IO.Streamwriter and Streamreader but offline. I would like to let this use a directory online, I have a webhost available for that, now how do I say to the program it has to look at a specific map with all the users information?

I now have already this into my login form:

Private Sub btnLogin_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnLogin.Click
On Error GoTo A

[CODE]...

Just curious if I can let my network grow out international instead of pc. Also I have a second question. I made a create account page which is supposted to make a text file with the txtUserName and txtPassword inputs, but it does create the file, but doesnt write any lines into it.

Code here:

Private Sub btnCreate_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnCreate.Click
Dim UserGenerator As System.IO.StreamWriter

[CODE]...

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How To Get Volumenames Selected In Dropdown

Apr 22, 2009

Check this code. Here I populated Dropdown with volumenames from webconfig file. Here I am getting volumename from webconfig file and in page load event I want to show this volumename selected.

'page load
Dim volumeName As String = ConfigurationManager.AppSettings("VolumeName")
Dim index As String
If Me.ddlVolume.Items.Count > 0 Then
'DropDownListName.Items(DropDownListName.SelectedIn dex).Value
[Code] .....

Here I am getting the error: Conversion from string "TEST" to type 'Integer' is not valid.

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Streamreader Limits - The Streamreader Works Fine Until The File Is More Than 100,000 Bytes Long?

Apr 19, 2011

I have a problem with a streamreader in visual basic 2008.I am updating a database from text files on an ftp server. The streamreader works fine until the file is more than 100,000 bytes long.It reads until it reaches this point and then just ends. No error message, it just reads to this point which happens to be 2 fields out of 6 in the database stream. My question is - does the streamreader have a limit? And if so what is a workaround?

Dim connString As String = "Data Source=" & pDataBase
conn = New SqlCeConnection(connString)
Dim strQuery As String = ""[code]......

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StreamReader/Writer - Loads An Entire Text File Into A Streamreader Variable

Jul 9, 2009

I'm writing a program that basically loads an entire text file into a streamreader variable, then reads this variable line by line and parses and writes a line into a new text file. I'm VERY new and my knowledge is mostly self-taught, but I can't seem to get out of this one. It works for smaller files, but it appears to reach a limit in characters at some point because in a file of 900 lines, it stops writing about halfway through 800 and there are no errors, the program actually completes and the message box pops up.

There are a few things with this code I already know I should fix, such as creating the new text file name, it's messy, I just don't know how.

Private Sub btnProcess_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnProcess.Click
Dim IndexValues As String()

[CODE]...

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C# - Gradually Increase System Volume On Windows Mobile / Windows CE 6.0

Jun 19, 2012

I'm attempting to use waveOutSetVolume from coredll.dll to gradually increase the audio volume from silent (or near silent) to maximum.

Most of the code examples I'm finding show some predefined set points for Off, Low, Normal, Medium, High, and Very High like this:

Public Enum Volumes As Integer
OFF = 0
LOW = 858993459

[Code]....

OK, and here's some API documentation which doesn't make a lot of sense to me in this particular context. What is low-order word and high-order word and how can they both exist in a single value?

· dwVolume New volume setting. The low-order word contains the left-channel volume setting, and the high-order word contains the right-channel setting. A value of 0xFFFF represents full volume, and a value of 0x0000 is silence. If a device does not support both left and right volume control, the low-order word of dwVolume specifies the volume level, and the high-order word is ignored.

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.net - Add ProgressBar While Making Operations?

Feb 10, 2012

my update script in VB.NET, i'm making some stuff, and I want, while all funcs are executed, a progressbar to be displayed? How to do that? Here is my execution sub:

[Code]...

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Add Operations From A Listbox Into A Timetable

Dec 19, 2011

I'm new in VB.net but I'm trying to make application (planning-game). The game is about showing students the planning 'complexity' of a operation room in a hospital. I created a listbox which randomly shows 5 operations. But now I would like a function which makes it possible to add a selected operation to a timetable. The timetable has blocks of 30 mins (example 08:00 - 08:30, 08:30 - 09:00 etc..). This because 1 type operation takes 1 hours and 1 takes 1:30 hours. Now I have given the operations a value by using a label. [code]

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Improving The Assigning Operations Of .NET?

Dec 10, 2009

I have an idea about improving the assigning operations of VB.NET (maybe other .NET languages too.) It is similar with "With ... End With" block:

[Code]...

So we don't type "Some Text" every time. Do you think does this idea work? Maybe in the future we can see something like that?

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