I am learning C# after tried Java. Ive tried to program a program that can detect keystrokes, however when i add onKeyDown on my form it work but only one key at a time. So ive tried to add my e.keycode detect to a timer and got error. private void key_Tick(object sender, System.EventArgs e, KeyEventArgs e)
That wont work and the timer wont run becuase i have 2 Args. Im really lost and do not really understand
Is there a way to do something when the left mouse curs is down. ive tried:
If apimouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0) Then
do things
end
i have this on a timer so i want as long as mouse is down do this...yess i have declered mouse event but when i try it ignore apmouse event and do the things even if not cursor is down If you donīt Believe in it, Then it Doesnīt Exist!
I want to detect F2 keypress as a shortcut to show something.. this is like F1 to show help in vb.net.
View 5 RepliesWhen a user types into a VB.Net textbox, I want to detect the key press (assuming I cannot read the text from the textbox after its written). This is easy for English (by using e.KeyChar or Keys.[A, B, C, ...etc]). However, if I change my default keyboard in Windows from English to another language, say Arabic or Farsi, still the English characters are detected (although Arabic or Farsi is being typed in).
View 3 RepliesI would like the program to detect a key press and then report that key to a MsgBox
I have the code for the message box thats easy, and I have
Okay so I'm trying to hide my program (only one form) so I'll just make a button and put me.visible = false , but I'm just wondering how to make my program detect a keypress (^ key) and show itself? I tried creating a timer and chucking
[Code]...
how can I detect if press Enter in the Textbox Change event and not in Textbox Keypress?
View 3 RepliesI am new to VB but I want to find this out. For example there are two objects in my form and when I press W,A,S,D then Object1 should move Up, Left, Down and Right respectively. Object2 moves when I press the arrow keys. How do I make them move together and also separately depending on whether the key is pressed.
View 8 RepliesI have this code. credits to jmchiney. My goal is when I press a certain key, the picturebox corresponding to that key should be moved to a certain location. Exactly like in the text twist game.
I have a code running and doing what I want but It is only applicable for single letter. For example the word alabama. all letters without duplicates are placed properly but for letter a, only one letter a is being accepted and moved. that goes for all letters.
Here is the
Dim pb As New PictureBox
Select Case (e.KeyChar)
Case CChar(letterPicbox1.Tag)
[Code].....
Another one. when a certain letter is already placed to the location I set and once I press again the same letter, the location changes. What I want is when I already gave pictureboxA a location and then I press "a" which correspond to pictureboxA again it should be stationary and check if there are other letter "a" in my pictureboxes and move the next detected letter "a" to the next position. Like i said. just like text twist game.
I need to select multiple random rows in DatagridView with keypress.Ex:
Row1 -selected
Row2 -not selected
Row3 - selected
I do have part of code that will update certain field in database on keypress, but i have no idea how to create multiple selection and display it on DataGrid.CTRL+Click is nice, but I would like to have option of selecting rows with keypress.In following code I am checking if certain field is marked for selection(i want to give user an option to start selection, exit program then continue selection later) but it allways select all rows in table (even if only one is marked).
Dim NumRow As Integer
NumRow = 0
Do Until NumRow = dbtShow.RowCount - 1
[code]....
My question is: What is the best way to select multiple random rows in code?
When i am pressing any key in the textbox it will return "A" Character.[code]...
View 2 RepliesI've written a keydown event that needs to occur multiple times during the execution of a program, and it needs to play a sound each time. The first time the keydown event is triggered, the sound plays without a hitch. However, the second time (and all subsequent times) the keydown event is triggered, a system beep accompanies the sound. I'm using Studio Express '10 and I've already integrated e.SuppressKeyPress into my code:
[Code]...
I'm making a mario-like clone and I just finished the jumping code. The only problem is that moving while jumping is extremely hard because if you hold down the up key and right key at the same time, neither one activates.
View 10 RepliesNew to these forums but have been a lurker for a while. I searched through some "multiple monitors" threads but didn't find anything that fit my current issue, so I figured I'd pose it in a new thread. We have users with 4 monitor setups that are very particular about their screen settings. When we have to replace a PC for whatever reason, it is always a hassle getting their screen configurations the way they were prior to the switch. Is it possible to create a small VB app that will scan their current configuration, save a "settings" file, and re-apply the settings on the new PC? What I mean by configuration is screen resolution, setting the primary monitor, etc. Theoretically this sounds like it can be done, but I wanted some opinions on it.
View 1 Replieshow to get the ascii of a key press on a timer.
View 6 RepliesI am trying to write a program that dims the brightness on my laptop. I have been unable to find the correct code, so I am trying to get it to press 'Fn & Down' on form load. The problem is I cannot find 'Fn' in the e.KeyPress I set up a small program that alerts me of the key pressed and pressing 'Fn' does not give and alert. Pressing 'Fn & Down' Gives a keycode of "None" Is there some way I can register the 'Fn' key in vb.net?
View 2 RepliesI have written a login. Now I want to do this (press return to login):
[Code]...
It does not work. At this time it works only with a button.
Before anyone tries to close this thread thinking this is for malicous purposes, let me tell you that it's not. What i'm working on is an application to save screenshots to files as soon as the 'Print Screen' key is pressed, as Jpegs or what ever. What i want to do is be able to minimize the application and I still want the application pick up on any 'Print Screen' presses, and save the screenshots. I've tried using the KeyPress event, but I soon realized that it only worked when the application had focus. I plan on using it to save screenshots every time I press 'Print Screen'
View 2 RepliesI am working on a software in Visual Studio 2008 Professional, and I need to write code that will run a certain code on a keypress. I cannot find the necessary code anywhere.
View 2 RepliesIs there a method I could use to 'sniff' for a certain keypress.For example, from firefox, I could press ctrl+k and have my program show. Does this capability exist in VB.NET?
View 6 RepliesHow do I detect a ctrl+tab keypress?
Reason for asking: I want to stop a user from changing tabs in a tab control.
I want to be able to detect when the user presses F10 or Ctrl+F10 outside of my program, and upon receiving the key press, it will send text to whatever they currently have selected (e.g. a text box). How can this be accomplished in the simplest way?
View 3 Repliesi want to be able to load form2 by pressing the right mouse button.
here's what i have so far:
Private Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress
If vbKeyRButton = True Then
[Code].....
e.KeyCode is giving me an error.
I am trying to modifying the "Math Quiz" tutorial to be more user friendly.
The initial tutorial does not consider the users efforts to answer the math problems as quickly as possible.
The problem is that you must use the mouse or tab key rather than the "enter" key to move to the next control after answering. I believe using the "Enter key to be much more intuitive.
Therefore, I wish to modify the program to either:
1. Check the KeyPress event of the NumberUpDown controls to watch for the "Enter" key to be pressed, and if it is, check to ensure that the current NumberUpDown control is not empty (= Nothing) and if both are True, to then TAB to the next control in the TAB order; OR
2. Uses the PreviewKeyDown event to transpose the "Enter" into a "Tab" automatically so the application will then TAB to the next control in the TAB order.
With all of the new changes to VB 2010 from the last version I actually used professionally (VB6), things are REALLY different, so I no longer know how to accomplish this same task in the new manner. especially if it contains working CODE, because I have always learned better the first time from an example. here is my version of the tutorial Code:
'--- Create a Random object to generate random numbers.
Private objRandomValue As New Random
'--- The Integers will store the numbers for the
' addition problem.
[Code]....
I need to find out how to detect keypress's outside of my form
View 1 RepliesI have a console application and i want to run some code but at the same time I want to have the ability at any given time to press CTRL + SHIFT + S to stop it,
Now I tried doing something basic like this which would stop if you press X at any given time:
Dim stTest as string
Do Until stTest = "X"
stTest = console.ReadLine
console.WriteLine("you didn't press X yet...")
The problem is that every time before it writes that line it will wait for the user input because i have "Console.ReadLine" on there, I don't want that to happen, I want it to keep going until a set of keys are pressed.
trying to get my app to trigger som events on a keypress (lets say left arrow) when my form is not in focus.I've google it bu all i can find looks very complicated, is there an easer way of doing this?Or is it a very complicated thing to do?
View 3 RepliesI want to create a program that gets if the user has pressed a code, for example F8, but without the user having to have focus on the form. I want the program to start hidden, and while the user works normally (say browses the internet (Go Google Chrome)), he just presses F8 and the form shows up. So I ask, is there any way to get key presses outside the form? [code]
View 2 RepliesPrivate Sub Form1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles Me.KeyPress
If vbKeyRButton = True Then
[code].....
I couldn't manage what the matter is not even after searching. Here my question goes:I need to do a simple task (close my form on pressing escape key) and I use the following code:
Code:
Protected Overrides Sub OnKeyDown(ByVal e As System.Windows.Forms.KeyEventArgs)
Select Case (e.KeyData)
'Close on Escape
Well , it works when I click escape my form closes , but.. if I have pressed by accident or some else matter any of the arrow keys (up , down , left , right) before escape and then hit escape nothing happens. I checked if any other key does that and as I see it does not.