I'm working on a project where I have to send data to the serial port through a radio modem onto a servo controller. Everything works fine but since I use a timer to detect joystick changes (directX). Even if I don't touch the joystick, because of the timer it still sends data thru which is killing my battery on the receiver side.
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Does anyone have an example of use of a joystick in VB .NET or know where to find one?
DirectInput or not...it doesn't matter. I'm just trying to use a USB joystick within my program. I don't care how I do it.
I am writing a program in VB express 2008 which I want to be able to receive input from an xbox controller as well as activate the rumble on the controller. I am using the XBCD drivers for the controller [URL].Basically I want to say "the further forward the thumbstick is pushed the more the controller should vibrate".
View 6 Repliesim looking for a way to receive the axis values from my USB joystick. Is it possible? if so. How do i do it?
View 3 RepliesI've been using DirectX SDK libraries (Specificaly DirectInput) to use a joystick with an desktop program, but I haven't been able to make the program get the input form the joystick (X and Y Axis). This is the code I'm using on Main Form:
[Code]...
How to access Joystick in VC++ 2005
View 1 RepliesWhen I plug in the USB joystick, I'll have to go to the control panel and select game controllers. I click on the properties and a pop-up is displayed. On the top left hand corner of it, there's this small square 'picture' with a plus sign at the middle indicating the joysticks' movement. As I moved up, the sign moves up as well and as I move down it does too. It depicts the movements of the joystick in use.
I was wondering how to code the exact same thing as I'm planning to place the square thingy in a 'question' image which will change after every submitted answer of the image using the joystick.
i want to read the joystick input?is it somewhat like keyboard input?
Private Sub form1_keydown(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyEventArgs) Handles Me.KeyDown
Select Case e.KeyValue
Case Keys.Right
TrackBar1.Value = TrackBar1.Value + 1
[code]...
I need some code for a joystick interface in vb2008
View 1 RepliesI have microsoft force sidewinner joystick, how can i detect its pressed buttons(wheel turns, padels pressed) ?
View 3 Repliesi can simulate keyboard keys and i wonder if i could do the same but whit my joystick.
I can get input data whit directx but i doŽnt encounter a function to send virtual pulsations. i tried "setactionmap" property but it doesŽnt work.
I have a VB 6 SP6 application that uses DirectX 7 to interface to a USB joystick (Logitech Extreme 3D Pro).The application works under Windows XP Pro (32-bit).I've got Visual Studio and the application running under Windows 7 Pro SP1 (32-bit).
I've calibrated the joystick under Windows 7.The VB 6 application does not find any DirectX 7 joystick device to connect to.Otherwise, the VB 6 application works (GUI, embedded video, serial channel, Ethernet connections).The VB 6 application must be accessing the dx7vb.dll or it would crash.The joystick disc did not provide a driver.I installed the latest joystick Profiler vendor software from the Web.This is my first attempt to use Windows 7 as a platform.I'm not sure what to try from a Windows 7 perspective.
I have made a small program that reads the input of a joystick/GamePad and passes it on to a serial port. It works great I can see all the buttons pressed ect ( in a textbox). But When I minimize the form and press some buttons they are no longer passed on to the serial port and not shown into the textbox?
View 2 RepliesIs it possible to Intercept a Game's forcefeedback message wich was sent to a joystick? WM_???
I only need to intercept that message, nothing more.
i've read about hooking (wich is illegal??), but its very difficult, and i do not know the c++ language, but i know vb very well.
What I am trying to do now is design a program that will play 4 different sound files depending on the position of a joystick. I am not looking for any kind of gradient to be involved. Any kind of forward position should play the file associated with "forward". Any kind of left position should play the file associated with "left". And the same for "back" and "right".
View 3 RepliesI have only started using VB yesterday and have managed to make some very basic programs run. What I am trying to do now is design a program that will play 4 different sound files depending on the position of a joystick. I am not looking for any kind of gradient to be involved. Any kind of forward position should play the file associated with "forward". Any kind of left position should play the file associated with "left". And the same for "back" and "right".
View 2 RepliesI use DirectInput to control a joystick. Now I use a timer to continuously runs a sub
Private Sub timer1_Tick(ByVal sender As Object, ByVal e As System.EventArgs) Handles Timer1.Tick
UpdateUI()
End Sub
Public Sub UpdateUI()
' This function updated the UI with
' Joystick state information.
[Code] .....
The problem is this is not very efficient. Now I would like to know if its possible to trigger a sub as soon a button D-sub of analog stick is pressed/moved. I've seen the following:
[URL]
How to implement this?
I wanna ask about Z position on joystick fung
Code:
Imports System.Runtime.InteropServices
Imports System.ComponentModel
Public Class Joystick
[Code]....
this code is work for X and Y axis but i dont know how to use Z axis using this code,also how to called the button if it pressed or not?
I try to find the example for reading data from USB Joystick using VB2010 but I couldn't. .
I found some but all were VB6.0.
Do I need to install DirectX or which component should I use. I can read data from mouse and keyboard.
What I need to do to make this code work for hours as well?[code]...
View 6 RepliesI need an accurate timer to interface a Windows application to a piece of lab equipment.I used System.Timers.Timer() to create a timer that ticks every 10 msec, but this clock runs slow. For example 1000 ticks with an interval of 10 msec should take 10 wall-clock seconds, but it actually takes more like 20 wall-clock sec (on my PC). I am guessing this is because System.Timers.Timer() is an interval timer that is reset every time it elapses. Since it will always take some time between when the timer elapses and when it is reset (to another 10msec) the clock will run slow. This probably fine if the interval is large (seconds or minutes) but unacceptable for very short intervals.Is there a function on Windows that will trigger a procedure every time the system clock crosses a 10 msec (or whatever) boundary?
UPDATE: System.Timers.Timer() is extremely inaccurate for small intervals.I wrote a simple program that counted 10 seconds several ways:
Interval=1, Count=10000, Run time = 160 sec, msec per interval=16
Interval=10, Count=1000, Run time = 16 sec, msec per interval=15
Interval=100, Count=100, Run time = 11 sec, msec per interval=110
Interval=1000, Count=10, Run time = 10 sec, msec per interval=1000
It seems like System.Timers.Timer() cannot tick faster that about 15 msec, regardless of the interval setting.Note that none of these tests seemed to use any measurable CPU time, so the limit is not the CPU, just a .net limitation (bug?)For now I think I can live with an inaccurate timer that triggers a routine every 15 msec or so and the routine gets an accurate system time. Kinda strange, but...I also found a shareware product ZylTimer.NET that claims to be a much more accurate .net timer (resolution of 1-2 msec). This may be what I need. If there is one product there are likely others.
I have a timer on a page in ASP.NET.
After a certain period of time elapses, I want to disable the timer.
I want to put a static variable in the timers tick event that will track how many seconds have elapsed.
My question is, will this work?
If user X and Y are viewing the page will they both have separate local static variables?
What is the best method of shutting down an ASP.NET timer after a certain elapsed time?
I have a windows application that need to process som quite time consuming jobs. In my first try i did all processing under
the form thread. The result was bad response and update of the form due to the heavy jobs.To get around the problem with bad response from the form i created a new class "processing" where i put all the data processing. Then i instanciated a background worker where i in the "doWork" sub created a new instance of "processing".The "processing" class creates a timer from system.timer, and the timer drives the processing.On the Timer event Elapsed the timer starts a new thread from the thread pool.
My problem is now when i want to asynchronously close the background worker (with the corresponding function call what ever it is called ...) there is still a timer thread out there that causes exceptions for me.
1. How can i close my background worker and at the same time have the timer to be stopped?
2. Is there a way to synchronize the timer event so that the timer executes from the background worker thread?
3. Is there a better approach for me to adapt?
I want to create an array of timer in vb.net. My problem is that how will i raise the tick event for a particular timer, say mytimer(x).tick and inside the tick event there is also a button, say mybutton(x) which changes location every interval. for example:
public class blah
dim mybuttons(20) as button
dim mytimer(20) as timer
private sub form_load(....) handles me.load
for x as integer = 0 to 20
[Code]...
i dont know what to do next, all i want is to pass the button mybuttons(x) to mytimer(x) tick event, in which their index number are the same. i want to create one timer per button. how to do that? please help me and post example codes. i've researched the net but i cant understand passing variables, addhandlers, etc. i'm just new to programming object oriented.
How can I incorporate the timer so once a page loads the timer activates, waits a few seconds then I tell my program what to do next.I tried this code but it didnt work:
Timer1.Interval = 5000
Timer1.Enabled = True
Timer1.Start()
[code]....
Everything is nice and dandy on my pc, then I compile, move it to its final destination and I doesn't work! At first I thought it was a OS problem, but both machines has win7, I then thought it was a compilation problem, installed visual studio on the other pc, recompiled still with no luck, then it dawned on me, may it be a problem of 32bit vs 64bit?The piece of code is this:[code]....
By the way is not a problem of mouse_event, is the timer that doesn't work
I have a timer in vb.net and it's interval is 1000ms ,. i have placed in it's timer_tick event a code that will print screen the screen and save it to a database.The problem is when i click outside of the form, or loosing the focus of the mouse to the form containing that timer/printscreen, the timer stops. As a result the printscreen also stops.here are it's properties:
generate member = true
interval = 1000
modifiers = friend
I recently switched my code from using the windows.forms.timer to the systems.timer.timer and it has resulted in a multithreading error. I'm using the timer to trigger just one event so multithreading shouldn't be an issue. To give more detail I have implemented the timer at follows:
At the top of the class I have: Private Shared timr1sec As System.Timers.Timer
When the program loads (Private Sub Test_load):
timr1sec = New System.Timers.Timer(1000)
AddHandler timr1sec.Elapsed, AddressOf OnTimedEvent
In OnTimedEvent I call several subroutines, and write some data to the screen using a ListView object.VisualExpress throws the multithreading error on the last line of this code, which is in OnTimedEvent
[Code]...
I have a routine which is controlled by a timer. It works perfectly. The problem is that now, I need to run this routine several times, so I need to start differents threads so that my program doesn't get hung up. I've been trying to start my timer inside a thread, but it doesn't work!
View 18 RepliesVB6 create object of timer instead of timer control
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