Getting Keypress On Timer?
Aug 17, 2009how to get the ascii of a key press on a timer.
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Holding Key Down For Keypress Slowing Timer?
Mar 23, 2012I'm using a KeyPress event in a VB form to move a game character around with keys. There are obstacles being moved every timer tick event. But if the player holds one of the movement keys down, the objects moving on timer ticks stop moving.
View 2 RepliesExtend My Interval Timer Timer To Include Hours In Addition To Minutes And Seconds?
Aug 2, 2010What I need to do to make this code work for hours as well?[code]...
View 6 Replies.net - Accurate Windows Timer - System.Timers.Timer() Is Limited To 15 Msec
Jan 15, 2009I 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.
Asp.net - Local Static Variables In Timer.Tick Event (Stopping A Timer)
Jul 9, 2009I 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?
Synchronize The Timer Event So That The Timer Executes From The Background Worker Thread?
Apr 23, 2009I 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?
Create An Array Of Timer - Raise The Tick Event For A Particular Timer?
Jan 11, 2011I 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.
VS 2010 Incorporate The Timer So Once A Page Loads The Timer Activates?
Jul 4, 2011How 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]....
Timer And 64bit Processor - Timer That Doesn't Work?
Sep 30, 2010Everything 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
Timer Control In VB - When I Click Outside Of The Form, The Timer Stops?
Mar 24, 2009I 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
.net - Systems.timer.timer Unwanted Multithreading?
Jul 14, 2011I 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]...
Timer In A Thread - Routine Which Is Controlled By A Timer
Aug 13, 2010I 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
Nov 6, 2009VB6 create object of timer instead of timer control
View 5 RepliesVS 2008 Timer - Possible To Use A Timer To Delay Code?
Apr 6, 2009Is it possible to use a timer to delay code? For example:
[code]...
Animation - Link The Timer To The"timer Start Button" And Make It Move?
Mar 15, 2009I already created a button "enjoy button" that i want to move in a form when the "timer start button" is clicked.how do link the timer to the"timer start button" and make it move? this is what i tried so far..then am blank first
Quote:
Private Sub MainForm_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
'Me.xTimer.Enabled = False
xTimer.Interval = 10[code].........
Update Control On Win Form: Windows-based-timer Vs Server-based-timer
Feb 24, 2011In a vb 2010 project, I have 2 win forms: Form1 and Form2.
In the Form1 class there is a server-based timer: when the "elapsed event" fires, then I update the text of a Label1 on the Form2. A very simple code:
VS 2008 - Timer Set To 5000 (5 Seconds) And The Code In The Timer Takes Longer Than 5 Seconds?
Jun 14, 2012Quick question - if I have a timer set to 5000 (5 seconds) and the code in the timer takes longer than 5 seconds to run because of sql stuff, will the timer wait until the code is done till it fires again?
View 3 RepliesVS 2008 Difference Between System.Timers.Timer And System.Windows.Forms.Timer?
Jun 15, 2009I'm wondering what exactly is the difference System.Timers.Timer and System.Windows.Forms.Timer???
View 4 RepliesTimer Pauses (sort Of) The Display Portion (label) Of The Timer Indeed Pauses?
Oct 27, 2009My timer pauses (sort of the display portion (label) of the timer indeed pauses, however when the timer is resumed it starts again, but not at the point where it was disabled. As an example. If I pause the timer at 10:00 and wait ten seconds when I hit resume it starts at 09:50, where it should resume at 10:00 or 09:59
Module Helper
Public SessionTime As String
Public Pause As Boolean = False[code].....
.NET Timer More Reliable Than VB6 Timer?
Aug 18, 2011In the good old days of VB6 you could not rely on the timer control to fire at exactly the specified interval. If your program was doing some intense processing the Timer_Tick event is pushed onto the stack and only when it gets to the instruction is it processed, which may be some seconds(?) later.
[Code]...
How To Handle The 'Fn' Keypress
Feb 25, 2011I 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 RepliesHow To Submit On Keypress
Aug 11, 2010I 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.
How To Track A Certain Keypress
Mar 24, 2012Before 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 RepliesKeypress Down Detect?
Jun 29, 2010Is 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!
Keypress In VB 2008?
Feb 22, 2010I 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 RepliesUse To 'sniff' For A Certain Keypress?
Dec 7, 2011Is 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 Replies.net - Detecting Ctrl+tab Keypress?
Dec 9, 2010How do I detect a ctrl+tab keypress?
Reason for asking: I want to stop a user from changing tabs in a tab control.
.net - Detecting Keypress While Minimized?
Mar 7, 2011I 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 RepliesAdd Keypress Options To Form?
Apr 21, 2009i 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.
C# Detect Multiple Keypress?
Jan 11, 2011I 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