I know you can do it with an WMI event or overriding WndProc and looking for the right messages, but i was wondering if there wasn't something hidden in the net framework that makes this task easyer.
View 2 RepliesI know you can do it with an WMI event or overriding WndProc and looking for the right messages, but i was wondering if there wasn't something hidden in the net framework that makes this task easyer.
View 1 RepliesWhy is it that this VB.NET code only works for detecting flash disks?
Select Case m.WParam
Case WM_DEVICECHANGE_WPPARAMS.DBT_DEVICEARRIVAL
MsgBox("USB Inserted")[code].....
What would be the possible way to detect the insertion and removal of other USB peripherals, such as mouse and keyboard?
I need a code to notify my application when a device (flash drive, cd, etc.) is inserted and removed.
View 11 RepliesWhy is it that this VB.Net code only works for detecting flash disks? [code] What would be the possible way to detect the insertion and removal of other USB Peripherals such as mouse and keyboard?
View 1 RepliesI'm looking for a way to detect when a new USB mass storage device is inserted in one of the pc's USB ports... I need to get it's drive letter and check for the existence of a particular file.
View 39 RepliesI'm writing a small application to detect the insertion of USB memory sticks and prompt the user to accept the device or reject it. Rejecting it would prevent its being loaded by Windows. I have the code that detects insertion & removal working fine but have no idea how to cancel the insertion.I was thinking that I could intercept the DEVICEARRIVAL message and kill it off before its actioned by Windows but I am lost with this.code to show the way.Heres the main part of the code I have so far-
Protected Overrides Sub WndProc(ByRef m As System.Windows.Forms.Message)
'This kills off any 'autoplay' capability in the stick
If QueryCancelAutoPlay = 0 Then[code]......
is there an issue, in [VB2010] for the trouble of the insertion of a transparent swf in an windows form ??
View 5 RepliesI am using Visual Studio/VB.NET 2008 and have a NumericUpDown control on Windows Form. I am forcing user to use Up/Down buttons to change the value, preventing direct entry of a value. This is accomplished be setting the ReadOnly property to True - so far so good. Is there a way to prevent the Insertion Mark from displaying? The Insertion Mark makes it look like the value can be edited, which is not possible with ReadOnly True.
View 5 RepliesI am using WM_QUERYENDSESSION to detect Windows shutting down in my vb.net app, but the complexity is that I need to quickly load a console application during this code to do some cleanup. It is looking like the console
application is not even loading, even though I can cause delays in the vb.net code. Is there a way to do this?
I know the default install path of the app and the name of the .exe file, but is there a way to see if it is actually installed? I've seen suggestions for checking registry entries, but I don't know if this app uses any or if if varies for different users on different pc's.
[Code]...
Is there for my .Net application to detect if a user has logged on? It is a Windows Service, so it will be running before logon.What I want to do is display a "popup" when a user logs on to tell them the status of the application
View 2 RepliesI have an application that starts from Sub Main and I need to run a sub when the system is about to shut down, restart or logoff so it can save it's settings. I found some code on google:
Imports Microsoft.Win32
Public Sub Main
AddHandler SystemEvents.SessionEnding, AddressOf OnShuttingdown
[code].....
I want to detect when employees in our company are shutting down or restarting their computers. Is there a Windows API Call that will do that which I can hook onto? I found WindowsExitEX but it actually restarts the computer!
View 2 RepliesI need to produce an error display message when the Windows Mobile PDA is in flight mode. The user will need to pull and push data from a SQL Server server; however when in flight mode this is not doable and a message needs to be displayed. Currently the message that is displayed is:
A request to send information the the computer using IIS has failed. For more results please see HRESULT.
I am programming using VB.Net and I am fairly new to it. I have searched for the past week on the Internet and come across information suggesting that I use TAPI, however I do not know what to import, or where the "flight mode detection" code would go in my application.
I am very new to vb.net. I need to be able to see when a certain popup window appears in another application. The time time it takes to appear varies so I need to know when it appears and in some cases when it has closed.
View 1 RepliesIs there any way to determine that a system has automatic updates enabled and has the little yellow security center icon indicating that updates are available? I'd like to drop a little service on one of my servers to monitor for that condition but can't find a good resource to get started.
View 12 RepliesI have an application that starts from Sub Main and I need to run a sub when the system is about to shut down, restart or logoff so it can save it's settings. I found some code on google:
Imports Microsoft.Win32
Public Sub Main
AddHandler SystemEvents.SessionEnding, AddressOf OnShuttingdown
[Code]....
But it doesn't seem to work, Windows shuts down yes but when I re-start the vm and run the app it opens with the old settings, not the ones that I changed before I shut down the vm. Anyone know of a way to do this or to fix the code above, I don't think my OnShuttingdown event is being handled.
What does Windows do to an app when it is run in Compatibility Mode?Is there a way I can detect the compatibility mode settings in .NET?
View 1 RepliesWay to detect the windows version, form say 95 to win7, in vb.net? pardon my ignorance but im not a big coder and norm only do python.
View 5 RepliesI was just wondering if there was a way with, using VB.net, be able to create a program to detect when a message is received in Windows Live Messenger, and alert the user?Essentially, MSN is minimized in background and our program, Program A, is also running in backgroung.Friend X sends us a message, the MSN icon blinks as usualy, but also a window pops up and shows the name of the user and the message.I was just wondering if there was a way to connect to MSN in some fom to be able to do this?
View 1 Replieshow can i put the insertion key at the first textbox?
View 4 RepliesBeen looking at this for a few hours now, is it possible to insert into the FIRST line in a rich text box? I have a simple app that regularly copies a reference file to several PCs but I need to have the success/failure and timestamp visible, so I want to insert into the top line each time - ie. in descending order.
View 1 Repliesi have a table with data definition: [code] My problem is that i can't see the inserted data in my table. [code]
View 1 RepliesIm confused on how to write a code on checking duplicates before insertion on vb.net. I know the sequence on how to do it but its kinda confusing when writing a code.
1.) Create a query that will check if the mobile number already exists on the database
2.) If not, insert the new data
3.) Else, a message will prompt that "You are already registered".
writing this in PHP is kinda easy for me but in vb.net.. , unfortunately, not easy.. Im still a beginner on vb.net.
[Code]...
When we have code like this:
vb.net
Using connection As New SqlConnection(strConnString)
Using command As New SqlCommand(strQuery, connection)
command.Parameters.AddWithValue("@CuserID", intUserID)
command.Parameters.AddWithValue("@CstartTime", dtStartTime)
[Code]...
I've been trying to learn enough to develop the family tree diagram and making progress.[URL]..It illustrates many of the drawing, saving, re-opening, editing, drag/drop features that the family tree diagram would need, and is a good starting point.
To adapt this for the project, after searching for snippets online, I've tried to add dynamic insertion of a label as a start (eventually, it should be a textbox that the user, in runtime, can enter text into, save, re-open, edit). But, I can't get this to work. No errors display, but I must be doing something wrong.
Here's the label code which I've so far appended at the end:
[Code]...
I'm getting this error when I go to insert data into access DB using vb.net 2008 which is specified by the user.
"OleDbException was Unhandled No value given for one or more required parameters "
If I hard code the values it works just fine.
Imports System.Data
Imports System.Data.OleDb
Public Class Form1
[Code].....
suppose we have three tables in the Database:
[Code]....
I have recently been working on a number of sections of code that deal with the insertion of Nullable types into a database. As I'm sure anyone who has dealt with similar code will be aware of the annoyance of constantly writing conditional logic to deal with the insertion of nulls into a database. I.e.:
MyValue.HasValue ? MyValue.Value : DBNull.Value;
If(MyValue.HasValue, MyValue.Value, DBNull.Value)
Basically I am just wondering why DBNull.Value exists and why Null simply couldn't be used?