Captures The Keyboard Events?
Mar 7, 2010How do I make the form captures the keyboard events when it is inactive or was in the background in Visual Basic 2008
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Capture All Keyboard Events?
Aug 9, 2010I've written an app with a simple textbox which attempts to identify a user from their typing habits (interval between key presses, duration key is held, time between key strokes ie a->s is quicker than a->v for some users, shorter for others depending on typing style). It's far from perfect but it does correctly identify moderate-large differences in style.I'm hoping to use this as a form of security monitor - If the typing style of the user doesn't fit a recognised pattern, report to a central server.
Of course, the next step in testing this is to begin to capture "regular" typing habits - ie when browsing, switching between apps, etc.What I can't figure out how to do is capture keyboard input for all applications (excluding the login/welcome screen, alternate desktops, etc. - I have no reason to parse that and there's probably not enough input to analyse anyway)Disclaimer: Yes, I know this comes dangerously close to writing a keylogger which is verboten but if I wanted to do that, I'd write a keyboard driver in C++ - I'm sure it would be far more streamlined and easier to obfuscate than a hulking .Net MSIL assembly. I have no doubt I'll be fending off "That's a keylogger" comments but I've hit a wall and need to ask somewhere.
Bind Keyboard Keys To Events?
Mar 30, 2012How do I bind a keyboard key to an event? Everything I have found so far is related to using the keyboard for shortcuts to buttons on the form. I guess you could say I want to do the opposite.
For example: This is just basic code I did while learning how to use the xBox controller with my windows forms.
If currentState.Buttons.LeftShoulder = ButtonState.Pressed Then
tbLB.Text = " Pressed"
Else
tbLB.Text = " Released"
End If
Instead of changing the text in my textbox I want to have the left shoulder button or maybe my Dpad act as the "Tab" (let me worry about the controller I've got that handled, as not not confuse anyone) key on the keyboard in order to navigate through my form by tabbing upward or downward through a menu. Then maybe use the "A" button on the controller as the "Enter" key.
Where in: Replacing "tbLB.Text = " Pressed"" with code that would press virtually press the "TAB" key.
Of course using the xBox controller is dealing with XNA, but at this point I have figured out some basics of using the controller with my forms, just need to know how to mimic the keyboard keys.
Capture Keyboard Events In .net Applications?
Jan 18, 2010I am trying to capture keyboard events in my vb.net applications. I am able to capture all the single key events. I am not able to capture (<) key which is (shift + ,) and (>) key which is (shift + .).
View 1 RepliesKeyboard Event Doubling Events?
Oct 15, 2010Private Sub Form1_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown If e.Modifiers = Keys.Control AndAlso e.KeyCode = Keys.A Then
[Code]...
And whenever I click control-b (on keyboard) it inserts the bold tag twice.why does it do that? i use to have that code in a button, and the keyboard event would lead to button1.performclick but now when putting the button code in the keyboard it adds the tags twice
Textbox Hook Keyboard Events?
Jan 23, 2010I'm using a textbox to define a hotkey, and I need to make the textbox receive key events and prevent the form from receiving them.The reason it's a problem is because Tab (and probably other keys) is a valid key, but the form uses that as a shortcut, so the textbox never receives the keypress.
View 5 RepliesRecord And Playback All Keyboard And Mouse Events
Oct 8, 2010I am writing a program to record and playback all the keyboard and mouse events using the journalrecord and journalplayback methods. The code also stores this recorded event in the file and opens the file for playing. The mouse movements are playing fine but none of the mouse clicks or keyboard keypresses are playing fine. Attaching the record and playback hook procedure.
Private Function RecordHookProc( _
ByVal nCode As Integer, ByVal wParam As IntPtr, _
ByVal lParam As IntPtr) As Integer
'Stop recording at "BREAK" key press
[Code] .....
Win32 is a class file which I have used for declaration of constants and importing DLL files.
readFs and writeFs are the Filestreams
Raise Keyboard Events To Windows From Form Application
Jun 21, 2012Ok, so I'm writing a basic windows form application in VB.net as you do and need to be able to raise keyboard events based on data received from the serial port. I'm able to receive the characters that I want (lets say a lower case c) and display them. Its also easy enough for me to find the keycode. What I want to do though is tell windows that key "c" has been pressed. The application is paired to a bluetooth terminal, I wanted to have the experience of writing the code behind this myself rather than using another library although it seems I've failed already. How would I go about doing this?
View 1 RepliesCapture Keyboard Events With The Intent Of Preventing Users From Being Able To Hit Ctrl + Alt + Del
Jun 28, 2005I am trying to find a way to capture keyboard events with the intent of preventing users from being able to hit Ctrl + Alt + Del while my application is running. I've spent several hours poking around looking for inspiration but only finding unclear and half-baked examples. As such, I was thrilled to stumble across the article: Managing Low-Level Keyboard Hooks in VB .NET written by Paul Kimmel [URL] This article is insightful, comprehensive, well-written, and I thought it was a huge help. One little problem though, the code that was provided did not work, (I knew it was too good to be true!).
Now, Mr. Kimmel seemed very knowledgable and I think that he probably tested his code, so quite likely the problem is something that I'm doing wrong seeing as I am a newbie. As the article suggests I cut and pasted his code into a module in my project (solution I guess is the proper term), and I call the HookKeyboard method from a button on a form, and Presto! Nothing happens. Stepping through this code I see that the second line in HookKeyboard:
[Code]...
Error - Description Captures Only 532 Characters
Aug 6, 2009I am running a oracle package's procedure which raises raise_application_error (). i.e Oracle sends the application error to Visual Basic 6.0 . After executing procedure, When I try to display the value of Err.description in immediate window it prints only 532 characters.. rest of the characters are truncated. Is there any limitation that Err.description would capture only 532 characters? When I run that procedure in SQLPLUS, it gives entire string without truncation.
Please guide me to display entire string in VB using Err.description when error description posts to VB by Oracle PL/SQL raise_application_error.
Screenshot Still Captures Invisible Form?
May 22, 2009I'm working on a project, and one thing it's supposed to do is make itself (the form) invisible, take a screenshot of the current screen, and the make itself visible again.[code]I made the 'FinishScreenshot function to call the 'TakeScreenShot' function, courtesy of AdamSpeight2008 and save that result as a specified image file in a specified location. the problem is, the screenshot ends up usually showing the form that was supposed to be invisible, but sometimes not (usually on the first form). I'm guessing this is because the FinishScreenshot and Take ScreenShot functions aren't finished working until after the form becomes visible again, but I'm not sure.
View 4 RepliesWrite An Application That Captures Snapshots?
Jun 10, 2011using VB 2010 ,I would like to write an application that captures snapshots from my laptop webcam ,and save it.
View 2 RepliesHow To Captures Instant Messeges Of Msn Live Messenger In .net
Jun 17, 2011How to captures(keystrokes) instant messages of msn live messenger.How to captures(keystrokes)form live conversion of msn in vb.net.how to create the txtfile of that capture keystrokes of that instant messeges og live messenger of MSN.
View 2 RepliesVS 2008 Saving Branches Of Moves / Captures
Nov 5, 2010As can be seen in the image, the X has 2 branches of moves (arrows), it can capture the Os by leaping on them (marked yellow), and I am not sure how to store such branches of moves/captures.
View 9 RepliesCaptures(keystrokes) Instant Messages Of Msn Live Messenger?
Jun 4, 2011How to captures instant messages of msn live messenger.How to captures(keystrokes)form live conversion of msn in vb.net.how to create the txtfile of that capture keystrokes of that instant messeges og live messenger of MSN.
View 1 RepliesVS 2010 Webcam To Take Captures Of Items And Then Save Them According To The Item Name
Oct 2, 2010I'm a computer science student and I have a project to do where I need to have VB connected to a webcam to take captures of items and then save them according to the item name that stores them into either a dbase or access database. I have knowledge of oledb using vb to retrieve and modify access databse so it might be better to head in that direction, but I have no clue how to get the webcam talking to vb and see the live feed from the cam until you take a picture and save.
View 1 RepliesCreated A Virtual Keyboard Like The "Windows Onscreen Keyboard"?
Oct 13, 2010I have created a virtual keyboard like the "Windows onscreen keyboard". So, I have used the method sendkeys.But if I click on the button, it doesn't write nothing.
I think I have a problem with the FOCUS.As you can see, the "Windows onscreen keyboard" is always on top.This doesn't happen to my form. How can I do?
Create An Application That Captures A Resource From Another Application?
Dec 17, 2009I understand this is possible but I am not sure where to start. I want to either buy or create an application that captures a resource from another application so that I can fire off another application. In other words, I want to start an application (which I did not write) that is database driven so the form has a number of text boxes. When someone keys something into that field I want to be able to validate the value, outside of the original application. For instance, if the program asks for a zipcode and it doesn't validate the zipcode, I'd like to trap for that and write something that would validate it. At this point I don't think I'd have to send anything back to the textbox/resource.
View 1 RepliesJquery - .NET Serialization And Weekcalendar - Undefined Events.events
Oct 13, 2011I have been trying to implement the jQuery weekcalendar using .net. What I can't seem to figure out is why weekcalendar states events.events is undefined after I make an ajax call to a webmethod I created which returns JSON. Below is the relevant code:
[Code]...
Make Keybord Events And Mouse Events for Learning?
Aug 2, 2009I want to make Keybord events and mouse events for learning and educational Purpose.
1. In Form any object like A "picture box" move by Arrow keys .
2. Picture Box Contain many Picture i want change Picture With next and Previos By Arrow keys.
3. I contain Voice of alphabet in Mp3.When i Press any button in textbox then its work.
4. Mouse Pointer Change My Own.
5. I click any Object or any thing By mouse its noice clicking sound like Tik Tik Tik.... Question No 3 is very hard to do . but not im possible
Error When Opening On-Screen Keyboard In Windows 7 - "Could Not Start On-Screen Keyboard"?
Jan 4, 2010oke On-Screen keyboard through my VB code. I am using windows 7 and below code to open the keyboard. Everytime when i run this code i am getting error "Could not start On-Screen keyboard".e to fix this error?
Dim proces As New Process
proces.StartInfo.UseShellExecute = False
proces.StartInfo.RedirectStandardOutput = True
[code].....
Mouse Events And User Control - Control Won't Respond To The Events
Dec 31, 2010I created a control that has picture box control docked within it. This control allows me to "animate" the image by swapping them out by setting the interval to swap them at. I want to use this control kind of like an animated icon within a application, but because the picture box is docked, the control I created won't respond to the events, MouseHover specifically. [Code]
View 2 RepliesUse These Events And Get The Appropriate Values Out Of These Events?
Aug 5, 2011I don't know how to use these events and get the appropriate values out of these events ....here is some code that I have copied from a website...
[code]
Private Function MouseHookProc(ByVal nCode As Integer, ByVal wParam As Integer, ByRef lParam As MSLLHOOKSTRUCT) As Integer
Try
If nCode >= 0 Then
Select Case wParam
[code]....
Blink The Keyboard's LED Using C#?
Nov 13, 2009Need to make the Keyboard's LED (Caps lock / Num lock or Scroll lock LED) blink either using C# or VB.net. (With or without using interop is fine)
View 2 RepliesDisable Certain Keyboard Key ?
Nov 9, 2011Is it possible to disable certain keyboard key?
View 1 RepliesGet A Key Pressed From The Keyboard?
Nov 7, 2010This may sound like a dumb question but I need to know. I know you can tell which keys are pressed on the keyboard but I like to know if I can do something.Ok, heres what I am trying to do. A user is in another program that is max on the screen. He has to press Print Screen to take a screenshot, but he got to min the screen he is in to paste the screenshot into paint. This causes slow loads on maxing that screen and sometimes crashs of the program. I already got the code done to check when the program is running and to capture the screenshot and save it. What I to do now is, find out while in the other program with my program running in the background, if the user has pushed the Print Screen button.
View 2 RepliesKeyboard Chars
May 16, 2009ok here is the situation. i have a form that is hidden. the form needs to wait until somone hits the F2 button.
View 1 RepliesPong Using Keyboard?
Jul 14, 2011I am trying to create a pong game. I have read and understood the tutorial on this website which I have also read the topic on this forum that has asked about using the keyboard in pong.This is the type of code they used which works:
Private Sub frmPong_KeyDown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
If e.KeyValue = Keys.W Then
[code].....
Type F12 Through Keyboard?
Jun 9, 2011I m writing a accounting application. I want to Display buttons With text "F12" underline For Keyboard shortcut like in tally 9.0.
I have tried to write &F12 in button text propertity but it doesn't work.
What Are The Following Key Constants On The Keyboard?
Sep 24, 2011Can anyone explain what the following vbkey constants are as actual key presses? I've tried searching and really can't find any info other than vbKeyCancel = CANCEL key. Well, what's a cancel key? I dont have one on my keybaord...I read somewhere that CANCEL = Ctrl+C. Is that true? If so, what are the other few I have listed?
Constant
Value
Description[code].....