I'm trying to work out how to detect if the user has pressed an f key I have this so far:
Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress
Label1.Text = e.KeyChar
End Sub
This detects when the user presses a character key and outputs it via Label1.text, but it doesnt work on all keys?
I'm trying to find out a way to detect when ever the user presses CTRL -ALT - DEL or Window + L to lock the PC.The code I'm using is
Private Sub Timer1_Tick(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Timer1.Tick
If (GetAsyncKeyState(17) AndAlso GetAsyncKeyState(18) AndAlso GetAsyncKeyState(46)) Or ((GetAsyncKeyState(91) Or GetAsyncKeyState(92)) AndAlso GetAsyncKeyState(76)) Then[code]....
However, as soon as the user presses CTRL-ALT-DEL the Windows Security Screen comes up and it is too fast for VB to detect that the keys have been pressed.I did a little reaserch on how to work around this issue and found that a GINA stub can be written which can delay the Windows Security Screen by some time say 2 secs which would be enough for VB to detect that the keys have been pressed.Also disabling Ctrl-Alt-Del through VB does not work because it is too fast for VB and I would like not to disable CTRL-ALT-DEL
I have an Xbox 360 wireless controller connected on my PC and need to detect the presses of the buttons and movement of the joysticks.... and have no idea how to do it.
View 2 RepliesI am writing a function that should sound a beep every two seconds until the user either clicks the mouse or presses any key. The code I have written appears to work for the mouse click, but it ignores keystrokes:
[Code]...
I have an assignment from school where the program is supposed to close when the user presses Alt X.
I have done this using Java but that was a long time ago and I can't remember how I did it. How do you do it in VB?[code]...
i want to make a message box appear when the user presses Alt k (then) Alt e (then) alt j . is this the correct code to use?:
Private Sub form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles txt3.KeyDown
Dim intcount As Integer = 0
If e.Alt And e.KeyCode.ToString = "k" Then
intcount = intcount + 1
[code]....
I made a tic tac toe game. and i was wondering how would code it so that when a user presses a button or when a user wins it makes a beep or some kind of music
View 6 Replieshow to make an event happen when user presses a key ... let's say space or whichever...and the other thing - how to display a folder on my hard disk ("E:Music") in a ListView box in my program?
View 7 RepliesI want to create a registry entry when the user presses Alt F6 F6
Could someone give me an example of house to do this?
I'm playing with this code
[code]...
i am making my final year project in vb.net for data entry i want to make the project more user friendly i use code to change the control focus by pressing 'Enter'(ASCII 13).. and clear the content of current control by pressing 'Esc'(ASCII 27)... in my project one form contains at-least 300 of controls say(t1,t2,t3,t4...)
so in the keypress event of t1 i have writen
if asc(e.keychar)=13 then
t2.focus
elseif asc(e.keychar)=27 then
t1.text=nothing
end if
the code works fine but produce an alert beep when i press ENTER to change the active control...
I want to format my textboxes in such a way that when someone fills in the details in the textbox if they press enter button on the keybord the focus is given to the next textbox that they should fill in .I tried the code below that we used in vb6 but its not working.
View 3 RepliesI am using GDI to draw an image of a character on the screen and I would like to animate the character when the user presses an arrow key. Here is my character
character code
character.DrawImage(My.Resources.Right_Standing, 12, 340, 40, 36)
I am using this method
method
Protected Overrides Sub OnPaint(ByVal e As System.Windows.Forms.PaintEventArgs)
i'd like to know how to make an event happen when user presses a key ... let's say space or whichever...and the other thing - how to display a folder on my hard disk ("E:Music") in a ListView box in my program?
View 1 Repliesim trying to make a program that only listens to a few keys that the user presses, and if one of them is pressed, it carries out a specified command.for example, right now,i found a keylogger that could carry out my command, but id rather use something else if possible. right now, i have a timer running this:
For i = 1 To 255
result = 0
result = GetAsyncKeyState(i)[code]....
Then, in the textbox1_textchanged, i search for like if textbox1.text.contains("M") or something.problem with this, is im pretty sure its a keylogger, and i dont want to have to have that. also, it does not work in vista.
Found a solution! (should have researched more throughly!)
Option Strict On
Imports System.Runtime.InteropServices[code].....
Inside a multiline Text Box I want it so that when a user presses Ctrl AND Enter then a new line is entered. But, if they press Enter on it's own, then it acts like the Accept button on the Form. I believe this is how Facebook does it.
Ctrl+Enter=NewLine Enter=Accept
how to send e-mail?I don't know what's the code for send e-mail. Can anyone teach me how to?I have a button on the Menu Tool. I want when user presses that button, it will directly link to the Microsoft Office to send e-mail to me.Please teach me.By the way, I also want to know how to load a text file. I want to make another button on the menu tool so when user presses it, a text file will pop up.
View 18 RepliesI know that using Dim currUser As String = Request.ServerVariables("LOGON_USER") retunrs the DomainUsername, but I want to know what Group that user is in say in Active Directory.
View 2 Repliesthe goal i want to accomplish is when the user presses a button, "moneyamount" increases by a random number generated. the problem i am having is that after the action is finished the script does not seem to save the new value and always starts at zero. here is the script:
Private Sub button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles dojob1button.Click
Dim moneyamount As Integer = moneyamount + Int(Rnd() * 10)
moneylabel.Text = "$" & moneyamount
End Sub
I need a box to pop up, when a user presses "Close" It will then say "Are you sure you wish to close this program?"and give a Yes or No option. If Yes is pressed, it will close the application. If No is pressed, it will close the popup box and the program will remain running.
View 6 Repliesin my form i have 4 textboxes and i want all not to be empty while saving the data.I have put condition in save button,when user presses the save button to save data, to check all the textboxes not to be empty. My question is that, i want to focus to that particular textbox which is empty during saving the data.
For example: i have txt1,txt2,txt3,txt4 as textboxes in the form if txt1 is empty while saving, the focus should switch to txt1 rather user himself have to go there.
I have a ToolStripTextBox (the name of it is SearchBox) and I would like it when after the user types something and presses enter it takes them to a URL. I've got the URL part sorted out, but I need to know what goes afterI don't see any event in the intellisense popup for something when the user presses "enter."So, in other words, how do I perform an action after the user presses enter?
Private Sub ToolStripComboBox1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles SearchBox.**?????**
Dim SearchString As String
[code].....
I am using VB .Net 2.0. I know I can detect the OS using
System.Environment.OSVersion
Can anyone tell me if there's a list somewhere where I can find what that generates for different OS versions.
Specifically I am trying to detect if a user is running Windows 7 64-bit.
How do I detect if an arbitrary user is an administrator on a machine? I have the user's domain and username but not password. The user is NOT the currently logged in user,so I can't just use WindowsIdentity.GetCurrent.
View 3 RepliesI have an application that when it starts, it checks the internet to see if a new version is available. My problem is this: If there is no net connection, the program 'pauses' as it tries to check for the new version.
Is there a function that I can use to detect if the user is currently online, with a working connection?
Dim hostname As IPHostEntry = Dns.GetHostEntry(TextBoxIP.Text)
Dim ip As IPAddress() = hostname.AddressList
TextBoxIP.Text = ip(0).ToString()
I have a windows form with the code above to get the ip address of the user. what would be the easiest way to get the country location of the user? based on the IP in the textbox. The solution doesnt need to be 100% accurate but good enough to work most of the time. the simpler the better.is there are any work arounds or built in fuctions for pulling a users country or language, this would be better than creating or managing a giant database.
I found that snippet, edited it a little bit and now im trying to use it...the problem that ocurres, is that its never going into the first IF... so already there seems to be an error.Im working on XP SP3 with admin privileges..
Private Shared Function GetCurrentPrivileges() As Privileges
If My.User.IsAuthenticated() Then
If My.User.IsInRole(ApplicationServices.BuiltInRole.Administrator) Then
[code]......
is there a way to detect if the user is shuting down?
View 1 RepliesNo doubt a simple question, but I'm a beginner (I learnt GW BritingASIC in 3 months long ago - but after 6 months grappling with vb 2008 I am still bewidered).
I have written a program that asks the user at run time to choose 1 of 40 buttons. These are themselves defined at run time. Whichever button is chosen the same algoritm will run (using different data). Question: To save writing the same Button_Click routine 40 times, what code should I write - and where in the program - to detect which of the 40 the user has chosen?
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 need to detect whenever user clicks the mouse, no matter what form is selected at the given time.
I know that detected keypresses globally can be done through a Keyboard hook so I assume that i am going to need some sort of Mouse Hook.