I'm trying to capture two key presses in my VB.net application, for this example CTRL + B, the code below doesn't work but it does for single keys. I have tried setting keypreview as true but this has no effect. [Code]
View 5 RepliesI have a code which registers keypresses even if it's running in the background.Is there a way I can capture the keypresses, but prevent the keypress from going to any other app? Microsoft Word and my program is running.if I press to 'Activate' button the program starts capturing all keypresses. This makes it impossible to type into Word, or any program for that matter as long as my program is activated.Once my prgram is deactivated I can type in any program normally.
View 11 Replies[code]......
View 1 RepliesSo I am hacking together an app which listens to traffic using SharpPcap library, it reconstructs the packets from sessions using the code from TpcRcon.
Listening and reconstructing part work on their own . What I want is on each packet arrival main window gets an event so it can display the packet , and when session is reconstructed display a complete packet (I am interested in HTTP ones) . -That is where it breaks with weird symptoms: for example right now it does not stop on invoking stop listening method - the sharppcap library function hangs there forever waiting on this line of code : m_pcapThreadEvent.WaitOne();//wait for the 'stopped' signal from thread
I also had it not working and crashing in sharppcap function because I had omitted one parameter in form delegate- which makes no sense, because form delegate does not deal with packet capture at all and only reacts on "New Packet" event from my "Listener" class (which is only there to notify main form)
My app starts as module main instancing class "Listener". MainForm has it
registered as friend with event and handles even "New Packet"
Main Form:
Private Sub uiListenStart_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btListenStart.Click
aLogger.AddMessage("Started Listening")
[Code]....
I am writing a program that expands the usage of the clipboard, but I need to tell when the user has either cut, copied, or pasted something so I can write code accordingly to that. I need to know how I can check to see when the user has entered a command like this.
View 2 RepliesI am trying to create an application that will enable me to type in my local language. For that I need to modify the key presses. For example when I press key A it should change it to ”. Also I would like to know how to detect double and triple key presses e.g. shift + W and ctrl + shift + J and remap them to a different character. Also I would like to know how to detect a text string like and replacing them with other string like member. I have found a code that modifies key. But when I tried to change key A to key B it produces AB. I am including the code below. Hope I have made myself clear.
[Code]...
I want to do a "code" that presses a button by ut self with help of a timer. [code\]...
View 4 RepliesI'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 just finished building my robot and now I am trying to come up with the code that goes on the computer to control the dang thing. Right now I have a thread that constantly loops in a do until loop that will never be true. Inside that loop the program should check to see if the w,s,a, or d keys are pressed if they are then it finds out what key has been pressed and sends the appropriate value to the robot. If no key is pressed then it should send the stop value to the micro controller which halts the robot until a new key is pressed.This is the basic way that I thought the code should be constructed although this code DOES not work.
HTML
code inside thread
Dim x as integer[code].....
I want to get key presses on my application. The problem is when I use API.UnhookWindowsHookEx and after sometime to restart hooking as follows, application does NOT gets the key presses anymore. [code]
View 1 RepliesI am trying to make a program that has a multiple key press activation such as ctrl+alt+g and then it would for example open a message box.I am also trying to use a MDI form as a windows 7 desktop like area.What I mean here is that i want to create a MDI form or any other form that supports locking child forms inside it.
View 4 RepliesI am looking for a way to send key presses to another program, Ive tried Sendkeys(), Keybd_event() , etc. is there a thrid party dll i could use? whatever i do it needs to be real low-level and totally undetectable.
View 6 RepliesI would like my webbrowser1 to press tabs. I used this code to press tabs:
SendKeys.Send("{TAB}")But it clicks tabs, where ever there is a focus on an object. I want it to press tab inside the webbrowser1 without have to have the program focused.
I 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 file ComboBox_SelectionChangeCommitted event when a button pressed or form is loaded.
View 3 RepliesI 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 know how to give the control + t command ( " SendKeys.Send("^t") ) and how to send the alt command ( "SendKeys.Send("%t") ) but how do i give a command that presses alt and ctrl and t in the same time?
View 8 RepliesI have a system with 26 buttons but the buttons actaully run the same code; aside from the fact that the index number is used to distinguish between them (es, I know index values are out so I am using the object's name (btnKey1, btnKey2, etc).
Is there any event that occurs for all button presses or do I need to write the same line for all 26 events (actually 52 since I am using MouseDown and MouseUp - will get worse when I want to use the keypress side)?
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 can I get the mouse and keyboard to simulate clicks and key presses from VB.net code?
View 8 RepliesI need to determine if a set of keys have been pressed in succession. For example, if I'm looking for this combination: Up, Up, Left, Space, then any key that inteferes with the order would start it over.
I tried doing a basic test to see if it would be as straight forward as I was hoping:
VB.NET
Private Sub Form1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
If e.KeyCode = Keys.Up Then
[Code]....
For some reason, it doesn't let me continue the sequence. I put a MessageBox on the second "Up" and it triggered when I pressed it just once.
I have an array like so:
Dim classes() as String = {"FR%", "SO", "JR", "SR", "SR5"}
I need to loop through these values like so:
For Each value as String in classes
Next
Problem is, I have a If..Then..Else clause inside of this For Each..Next which says something to the effect of:
If actual_class = value Then
txt.Text = "Welcome"
Else
txt.Text = "Goodbye"
When I run this, unless the individual is the last value in the string array ("SR5") they are going to get the message "Goodbye"...so, I need somehow to both iterate through each value like is done with a For Each..Next loop but also break out of the loop once it hits the student's class, like a Do..While loop - so that their value doesn't get overrun by the Else clause.
How to handle event when I press Alt+X in combination?. I am coding VB.Net in my Windows App and I want to run some routine when user presses this combination but I am unable to handle both keys. Event fires for single key and not for combination of both keys.
View 5 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 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'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 am doing some stuff when the user presses the arrow keys, but I fear many controls, like the TabControl, respond to such presses as well. In the case of my TabControl, the arrow presses will make it change of tab. I don't want that.. how can I disable such?
Private Sub Form1_KeyDown(ByVal sender As System.Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles MyBase.KeyDown
If e.KeyValue = 39 Then
doSomethingAwesome[code]....
so my friend and i are working on a project together, he is working on PHP, and im working on visual basic, and we both know what we need to do, but we cant figure out how to use his PHP code and use it in visual basic. What we're doing right now is trying to make a program to send an email to me or him when somebody presses a button. so, how would i use his PHP to send an email from my VB based app? sorry if this is in the wrong place, i wasn't quite sure which to put it in...
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