I'm wondering if anyone knows how to disable a keyboard key. This is because I am working on a space invaders game. In the game I have ammo. So after the ammo = 0 I want to make sure that the player cannot continue to keep shooting (using the keyboard) even though there is no ammo left.
View 1 Replies
I need a process for disabling windows key of keyboard through coding.
View 2 Replieshow can i disable the Home, End, and the arrow keys Next and Previous?All i need is having all those four keyboard keys disable while my application is running so the app do nothing if one of those is pressed.
View 4 RepliesThe simple line:
Enabled = False
Leaves the user no options to do anything with the program.What I want is to disable everything using the given line (or if anything else), but leave a Menustrip enabled.
I'm making a security program that locks the users screen. I have already figured out how to disable task manager but now I need to disable the task bar from showing and the start menu. Also, trying to do an event on alt+F4 doesn't seem to stop the program from exiting. Any other solutions? This program is intended for security reasons and I am not using it for any viruses.
View 6 RepliesIn the project I am doing at the moment I want to disable the Exit ( X ) buttons in the top right corner of all my forms. So I found out this code which I�m using and is working fine:
Protected Overrides ReadOnly Property CreateParams() As CreateParams
Get
Dim cp As CreateParams = MyBase.CreateParams
[Code]....
I am disabling line items in a combobox I have based on various test conditions (see code below). The problem is that when I first open the combobox my method below isn't getting called. It only gets called when the mouse hovers over each line item.
This is resulting in the list looking very different before/after a hover (see png file for a before/after picture).
how to show the list disabled on open?
Private Sub ComboBox31_DrawItem(ByVal sender As Object, ByVal e As System.Windows.Forms.DrawItemEventArgs) Handles ComboBox31.DrawItem
Try
[Code]......
I have a freshly initialized array that's being passed to a sub routine ByRef to be populated. The array is always empty when passed to the sub routine, which ReDims it as necessary.However, VS complains about this in a Warning:
Quote:
Warning1Variable 'MyArr' is passed by reference before it has been assigned a value. A null reference exception could result at runtime.
Dim MyArr() As Integer
Dim AnotherArr() As String
Call MySub(MyArr, AnotherArr)
The MySub routine populates both arrays. This Warning is meaningless because I very specifically want to pass the arrays to the sub routine BEFORE assigning values because those values will be assigned by the sub routine.Can I disable this type of Warning? No null reference exception will occur because that is being handled by the sub routine.
I have 2 DatagridViewChecKboxColumn. What I want to happen is that a(Submit)button will be disabled until the checkbox2 will be checked. How will I do this if my checkboxes are DataGridViewCheckboxColumn? What loop will I do,because there's a possibility that I'll be checking the last checkbox?
I found this, but it's not working.
If (DataGridView1.Columns(e.ColumnIndex).Name = "Child") = True Then
btnConso.Enabled = True
ElseIf (DataGridView1.Columns(e.ColumnIndex).Name = "Child") = False Then
[Code]....
So what I've been trying to learn how to do is create a command console program so when I open it up it will execute a series of keystrokes, i.e I want to create a program that when I open it a cmd will open and automatically open up itunes and press podcasts the ctrl u to update them. How would I could that?
View 1 RepliesI am building an image processing program. As part of this, I have a picturebox, set to AutoSize.
When I load an image larger than the size of the picturebox's container the box automatically expands and shows scroll bars. This is what I want. I can scroll the picturebox using the mouse to click on these, but I would like to be able to scroll the image using the arrow keys. This poses a couple of problems:
1) finding what properties to change or events to raise when a key is pressed. It is a property of the picturbox, or a property of the container?
2) dealing with repeated scrolling while the arrow keys are held. I know I can use keydown to detect that an arrow key has been pressed, but how do I continue to scroll as long as the key is held down?
I'm trying to hook the keyboard to make some action when I'm running a DirectX application. I want to press some keys like "F2" or "pagedown" when I'm running dx app and see msgbox appears. Can anyone show me the code?
View 1 RepliesHow do I change the keyboard inputs when a button's held down.Example: When SpaceBar is held down, if letter Q is typed P will the input instead.
I've tried KeyDown / KeyPress but that doesn't seem to be working
I want to press for ex: "F12" and will show for ex: "msgbox".I know how to that with keydown but I can't use this outsite my application..
View 6 Replieshow to do basic keyboard movement in VB 2010 express. i'm making a very small, simple game (as this is my usual method to self-teach a language) and i'm still getting a grasp of events. if someone could direct me to some place i could learn about this (and preferably not a "paste this code in your form") something simple as moving a picture box or what have you across a form would be great.
View 3 RepliesI'm new in the programming area and I'm having trouble making a calculator. My question is: How do I make the calculator work using only the keyboard, without the need of mouse.
I tried this:
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs)
Me.KeyPreview = True
End Sub
Private Sub FlowLayoutPanel1_KeyDown(ByVal sender As Object, ByVal e
As System.Windows.Forms.KeyEventArgs) Handles RESULTADO.KeyDown
If e.KeyCode = Keys.NumPad0 Then
[Code] .....
It only works on the text box called Result. I want to know how do I make work in the whole Class, and if it is possible, to make it work on two different Classes without writing twice the same code.
So I had this idea to make a virtual drum set and my school book doesn't have the answer for me and I haven't been able to successfully google this. The only things I need to know is how to add a sound to a picture box that will activate when clicked and how to assign a key on the keyboard to activate the sound as well.
View 14 RepliesI'm currently trying to write a program that will clone input from one program and broadcast it to 4 other windows (Mouse and keyboard, with the exception of the enter key). This is for a World of Warcraft and it is legal. I thought that I would use setWindowsHookEx, but I can't figure out how to set it up that it only takes the input from one window and not globally.Can anyone recommend the best way of cloning keyboard and mouse messages ? or give me an example of how to set a windows hook for only one program ?
View 1 RepliesI want to know if i click button1 then it's auto press keys.Tab and then keys.Enter.
View 5 RepliesI want to show and hide the OSK keyboard (docked at the bottom) for my touch screen application best methods? (I want to make sure when I show that I try to run, in case someone closed it while using the app)
View 6 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?
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
[code].....
I'm having a problem when i try to disable the windows key in my (VB.Net 2008) App. I tried to use
If e.KeyData = Keys.LWin Then
MsgBox("Incorrect key pressed", MsgBoxStyle.Exclamation)
e.Handled = True
[code].....
How do I disable CTR+C in a richtextbox?
View 1 RepliesPrivate Function StoreCouponCode() As String
Dim con As New SqlConnection(ConfigurationManager.ConnectionStrings("DBConnectionString").ConnectionString)
[Code]....
When the user clicks on the CmdGetCoupon it takes some time to redirect..so the user clicks on the CmdGetCoupon more than once,which results in multiple coupon generation from a single user account.
I want to display a message "Please Wait While Your Coupon Is Being Generated" and disable the CmdGetCoupon so that the user cannot click multiple times
Is it possible to make the viewstate false of whole page including all controls at a time.I mean I don't want to set enableviewstate="false" for all controls..In the page directive of the aspx page I have made enableviewstate="false" but still viewstate of all the controls of the is enabled.. And what the EnableViewState="False"actually works within Page directive.
View 3 RepliesI've used (buttonName).enabled = false to disable buttons when the user clicks on them but I don't like how the button becomes faded.
Is it possible to disable a button without changing the look of the button?
I have got my login form set up for my inventory system. User(admin) with access level 1 will be directed to form 1 and user(normal user) with access level 2 will be directed to form2.
[Code]...
Working the first time with a CheckedListBox.
Question: is it possible to disable an item of the box so you can't change the value of the checkbox.
Take the following fundamental code:
Private Sub btnStop_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnStop.Click
btnStop.Enabled = False
'Lengthy code procedure
btnStop.Enabled = True
End Sub
I've just notice that when I click on a button, and try to disable it in order to avoid the user clicking on it several times during process (or disable the entire form for that matter), the application somehow records the subsequent clicks and processes them after the button has been re-enabled. But that's not the behavior that I want at all. I just want to disable any user interaction with the button (or the form perhaps) until processing of the Button_Click event is completed. How can I do this?
