I want to hook keyboard with vb , so that whenever my application written in vb runs it will capture all the keys pressed from the keyboard and show all the keys being pressed in a textbox on window's form
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I'm writing a code to use it in a keyboard spy program , and I'm using hook techneque with this , but the problem is that : if I ForExamle clicked on Shift and number 2 it doesn't give me At (@), I want it to give me at (@) ..
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I´m using the SetWindowsHookEx API to hook the keyboard, and it works, but when I get vkCode from the structKBDLLHOOKSTRUCT it gives me way too high numbers instead of the ASCII byte I expect to receive. Also, the numberchanges each time I press the same key, so obviously something is wrong. I´m on Windows XP 32 bits, VB 2008 Express, Net. Framework 3.5 SP2. This is the relevant code (condensed, will
View 3 Repliesi am trying to create a keyboard hook so when i type out something my app will pop up, regardless of which app has focus at the time.i coded this already in a form which then opens up a second form but now i trying to make it so my module opens first, and then it will open up my secondary form.but the issue i am having is when the module loads and starts the keyhooking, i get an error on the following code saying"Overflow Exception was unhandled, Arthmetic operation resulted in an overflow".[code]
View 1 RepliesHow do I setup the mouse hook and keyboard hook?
View 1 RepliesI'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 RepliesAfter many searches i end up using this class for global keyboard hooking. Link: Global Hook post [code]My app is performing operations that take some seconds to complete (ftp upload small files on interval), and during this time the hook lovks the keyboard. This i dont want of course..I cant jump to Async FtpWebRequest right now because it needs many changes, so i thought that the solution would be to make the hoook live in another thread.A proposal is to move my time - consuming operations (upload) to another thread.Upon doing this i am facing other problems. Because the time consuming task (upload) is in a timer i would have to rewrite a big portion in order to synchronize the file->save with the file->upload and i dont mind the app locking for 3-4 secs. what i do mind is to loose the kayboard for 3-4 secs.
View 2 Repliesi am trying to make a app that loads a keyboardhook from a module on startup,
but unless i load the keyhook from the form the app just closes immediately.
i uploaded the keyhook module, to test it just start a new project, add the module,
to test it loading from the form just put hookkeyboard in the form load,
but what im tyring to do is have the module load first, so set the start up object to sub main
what this is suppose to do right now is just send a msgbox on every keystroke, it works from the form load but fails when loading from module, unless i am always typing something.
I suspect I've overlooked something simple, but can't seem to figure out what... The following code should to block all key strokes that match those stored in alMasterList while in Excel. While the code effectively identifies if a key is pressed that matches a record in alMasterList, it does not block Excel from processing the keystroke. how I can prevent the key from passing to Excel?[code]...
View 3 RepliesI'm trying to hook the keyboard in vb.net. Who can show me an example where you press button "F2" and a message box appear (MsgBox("You've pressed F2")). I need to hook the keyboard to make some action when DirectX application is running (I've Already tried with "registerhotkey" but do not works in dx app).
View 4 RepliesTrying to convert my home app from vb6 to .net but have a problem. I am using the code in the tut by Paul Kimmel but it is returning Err.LastDllError = 126. I am using this code as posted on Win7 and VS2010. KeyboardHandle is retuning 0 but Im not sure which part of it is the problem. There is a lot of new stuff there for me.
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I have a program that uses low-level keyboard hooks, because it's a program that needs to be able to catch keystrokes, even when holding down capslock or what so ever.
Anyway, I figured out (by making a sample program running at the same time on purpose consuming 95% CPU by making an infinite loop with nothing in it) that low-level keyboard hooks stops working if the CPU usage is that high, and you do a lot of typing what so ever.
i am trying to make a app that loads a keyboardhook from a module on startup, but the problem i am having is unless i load the keyhook from the form, the app just closes immediately.
what im trying to accomplish in the end is the module will will check a 'user settings' file, depending on the settings it will show a form or load the keyhook. but this is where my problem is, if i set the keyboardhook to load from the sub main in the module the app will just close immediately unless (as far as i can tell) i am always typing something
if i set it to load from the form it stays open, ive tried creating a second module and loading the keyhook from their but it still closes i uploaded a copy of the keyhook module if anyone want to test it / check out the code... all it does right now is pop up a msgbox on every keystoke, for testing purposes,
My final goal is that striking F12 prints the date (through SendKeys) in the application/window having currently the focus (Word, Excel, Outlook, whatever). I have consequently implemented a globak keyboard hook (system-wide), which is running well (source code below).
My concern is that I would like to prevent any other local treatment based on F12. For instance, striking F12 under Microsotft Word prints the date is the open document (which is fine!) but also launches the "Save as..." dialog box, since F12 is a local shortcut/keybinding under Word. (Actually, the date is printed within a field of a the "Save as..." dialog box). I want to avoid this.
In other words, my aim is to improve the "hook" below so that striking F12 does what I want (which is already the case) but nothing more. That is to say, I would like that, except my treatment, the system "forgets" that F12 was striken.
' Option Strict On
Option Explicit On
' inspired by:
' http://jo0ls-dotnet-stuff.blogspot.com/2008/12/vbnet-global-keyboard-hook-to-detect.html
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I'm using a barcode reader which emulates a keyboard with swedish layout. I'm using RegisterRawInputDevices to create a lowlevel hook, catching windows messages and checking which device that sent the keyboard input. If it's the barcodereader, I would like to store the input. I receive the key input one by one in this class - how do I translate this into a string? If the character to be sent is an #, then the keys sent are Shift+3.
View 2 RepliesI am having some trouble getting some code to work. Here it is:
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I recently order to monitor third-party software program written in VB.NET to call their own
View 5 Repliesi want my program to understand what i push the key "+" for example and do something. i can write this "something" but i dont remember how to make it see when i push the keyboard keys (NOTICE: i want the program to see the keyboard keys even if the program is minimized and another program is maximized)
View 5 RepliesIm creating a Virtual Keyboard for a touchscreen application and I was wondering if there is a way to know whenever a control gets focus, what type of control it is, basically either another thread or a watch function or something that raises an event when a control gets focus.GLOBALLY, not just one control or one form, but any control on any form in the whole program..Basically i want a keyboard icon to appear whenever the control is of Textbox type.
View 4 RepliesSo recently my Netbook keyboard stopped working, I got this new one. That would not be a problem if it was not for the missing [FN] key. My computer has several shortcuts, like FN + F6 = Turns screen off.
I cant seem to figure out how to bind these shortcuts to buttons in Visual Basic so I can just hit the button and turn the screen off that way, I've only used VB to make small simple fun stuff.
Respect, I should write a program for my keyboard player, which would have the option of changing sounds. So, the device is plugged into the USB, which lets you plug in 4 MIDI device or its keyboard. In order to select a song, a program should then all keyboards set the preset sounds. Is it possible to make? Do you perhaps know what we all need?
View 1 RepliesI'm afraid I don't have any code to show, as I don't know where to begin with this. I'd like to have it so that if the user presses "Ctrl+O" it will run the OpenDialogue from the Menu. If someone really wants me to (don't see how it'd help, but whatever it takes ) I can post the fully functional open function.
View 4 RepliesHow do I get VB 2008 to Listen to the Keyboard Key strokes when I am in another program??
View 4 RepliesI can launch my external program which is a Virtual Keyboard, but once it launchs then I have to click the textbox on my form or no text appears when I use the Virtual Keyboard. How can I make my form be the focus after the Virtual Keyboard launches?
View 1 RepliesI am making this little tool for this online game i play (league of legends some of you might know it) Basically I made a small program which consists of 4 buttons and when you click button it starts timer and beeps once it reaches 0. Thats fine. Problem is I have to go out of game to click the button to start the countdown.My question is. While the program is running in background is there a way to press the button by assigning specific key on keyboard ? for example if I press F5 it will start the Bluebtn when i press F6 it will start Redbtn while I am in game.
View 1 Replieswell the title kind of explains it, what i would like to do is code a program or script that will make it so that when i plug a usb keyboard in that instead windows making it a clone of my laptop keyboard that it makes it a totally seperate device with 108 programmable keys that i can turn into scripts...now dont know if this is possible and if it is i am totally drawing a blank of where to start...once i get going i think i could handle it but its the starting point thats killing me.
View 2 RepliesI want to make a simple program that will click certain keys on my keyboard at a certain interval. I have VB10. Could someone provide me with some code?
View 7 Repliesi need the code in VB.NET on shutting down a windows computer
Also how can i write a program that disables the keyboard completely from working
Where should I go to leanr to program stuff like getting keystrokes, locking keyvoards, changing desktop backgrounds, opening CD trays, changing IE homepage, etc.... Basically everything windows... I'm using VB.NET right now. Is there an api or something to learn for this kind of stuff?
View 10 RepliesI 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?
