I 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?
For a touchscreen oriented application, i have an onscreen keyboard that can operated by both the hardware keyboard, or via touchscreen/mouse. The user needs this keyboard a lot, but. Because it has so much buttons, it loads really slow and takes about a second to finally display.
My Onscreen keyboard is of type dialog, and its background is set to the transparency key. Once the form is there it works really well. the problem is the 1 second loading time, this can be pretty frustrating when you need to edit like 20 things. Is there any way to preload the keyboard dialog and make it popup instantly?
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I'm trying to create a custom keyboard for my accounting firm. I have all the buttons and button events sorted out.How can I make it so that when buttons a pressed, the text is input into where the cursor is? Currently i put the cursor for instance in an excel cell, then click the key on the virtual keyboard and nothing is inputted into the cell, i assume because it selects the keyboard window when i click the button. For some keys I'm also simply using:SendKeys.Send("q") for example.
View 11 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 RepliesI am having troubles in connecting my virtual/simulated keyboard and real keyboard. i.e., when I press a button say "B" the button in my real keyboard, my virtual to response with that same "B" press.
View 1 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 have seen similar questions which attempt to solve this issue, but none seem to work for me so far.Basically, for my first VB project, I am creating a virtual keyboard where a sound is played from the resources on KeyDown. So far, the program seems to work except for the fact that each key needs to be clicked by the mouse before the sound is played by pressing each key (hence put the object in focus), where I need the key to play the sound without clicking the keyboard key (put the object in focus on KeyDown).Below is an example of my code:
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oke 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
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i wanna add keys in my visual basic program and when i click ex:A it must write in textbox
View 2 RepliesVisual basic 2008.I want to make an on screen keyboard exactly like the one in windows. I have made one which uses app activation, but that only works with the one you write in your codding or using a combobox to select one. How do you make one that works with everything like the one in windows.
View 6 RepliesIs there a way to change default Windows keyboard shortcuts like CTRL + C, CTRL + X etc. to my desired shortcuts like CTRL + J, CTRL + Q etc. in .NET ?
I can register the new hotkey easily with RegisterHotkey. I just need to unregister the hotkeys Windows has registered and add their functionality in the new hotkey.
I need a process for disabling windows key of keyboard through coding.
View 2 RepliesI have done some reasearch on disabling the mouse and keyboard both on Google and on the forum and what ever i find can not get to work. What I'm trying to do is on a click of a button it will disable the mouse and keyboard. It must work in W
View 4 RepliesOk, 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 RepliesWhere 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'm developing a program where I've had to add a keyboard shortcuts system. The problem is it uses a third party OCX for a part of its display, and it is catching some essential WM_KEYDOWN messages when in focus, like Ctrl+C, Ctrl+V, etc. I've tried catching the WM_KEYDOWN message through WndProc, but the message is not propagating, so I guess the keyboard messages go from the inner container to the outer one, don't they?
The WM_KEYUP messages can be caught tho, but I'd prefer to be able to catch some of those messages on the KeyDown event. I'm aware I could make some low-level hook, but I'd like to avoid this workaround. Well, if the WM_KEYDOWN message goes from the OCX to its top level container, I guess I'll have to treat those key combinations in the KeyUp event.
How can I disable the windows button on the keyboard while my application is focused?
I'm having an endless problem with users accidentally pressing the windows key on the keyboard which causes the application to lose focus. They are capturing data, so when they finally realize that while they were typing nothing happened. They have to find the place where they lost focus and redo everything from there. This is very time consuming and as we are paying our data capturers by the hour this turns out to be an expensive flaw in the application.
Need 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 RepliesIs it possible to disable certain keyboard key?
View 1 RepliesThis 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 Repliesok here is the situation. i have a form that is hidden. the form needs to wait until somone hits the F2 button.
View 1 RepliesI 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
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I 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.
Can 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
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I want to be able to edit my text box pretty much like you can with windows notepad..
in notepad, when you press CTRL + C , it copies, CTRL + V , pastes , and so on.
In my form have the Toolstrip menu and it have the 3 Buttuns with image and text. now I want to add the short cut key for this ToolStrip buttons like "Cntrl+any one char"
I dont want Alt+key type short cut. how can I add the keyboard short cut key using with Cntrl+key.
Are there any known sofware approaches to anti-keylogging,that defeat both hardware and hook based loggers? While I was thinking about my next article, and the current ones, something dawned on me, that I had started before but never got to finish.After doing some research I verified that an On-screen keyboards, avoids most if not all hardware loggers, but the consensus is that their messages can still be hooked and stolen.Well maybe not so fast....
However, in my sendkeys article,the program could identify which keys were sent by my module, versus some other source.I used the integer -11, in the getextrainfo param, so that in my hook, I could know to allow my simulated keys, and block others that may interfere. Works great. I just used -11 for the heck of it.So, the idea is that we don't have to use -11.A sequence of random numbers could be generated by the osk.This provides some anonimity, to start with.But, the clincher is that when our user keys are detected by our osk(ourself basically), we simply insert 0-5 random keys, flooding the enemy logger with useless information in the que. Bingo!Sure they logged your keys, but can they read em? Nah.
The zero through five would not be fixed, but fluxuating, so it's not equidistant.I just picked them so as not to over flood the que for no reason. That is enough to obsure the password being typed.
i really dont get it. i want to put keyboard shortcuts on the button i have other than clicking this buttons. but the problem is i dont know how. i tried putting an ampersand (&) sign before the text of the buttons and it work, but the ampersand sign also displays. heres the original code:
Button1.Text = Mid(ChoosenWord, PickedSeq(0), 1)
Button2.Text = Mid(ChoosenWord, PickedSeq(1), 1)
Button3.Text = Mid(ChoosenWord, PickedSeq(2), 1)
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I am looking to create a VB.NET application. when the application is opened it will disable the keyboard and mouse so if you hit any keys it does nothing and you can not move the mouse. (even if currently selected window is not that of application).
MUST WORK ON WINDOWS 7!
I have a barcode scanner connected to a PC that working with a c# program.now i want to distinguish between the scanner and the keyboard which one is sending data to my program.
somebody said this to me in another topic(but i can't do this yet): basically you can configure the scanner to send some characters that basically tell the computer "hi, it's me". When you see those characters in your input stream, you know the information is coming from the barcode scanner, not from something the user typed on the keyboard. Did you check the manual that came with your barcode scanner? It should have more information about this.