i have developed media player in WPF.but i did n't get timer for slider in that.how i will get that timer below is the my .cs file code.
i used dispatchertimer for timer.video is seeking but timer is not displaying with video.
seekbar not moving where i clicked in seekbar.plz help me .
thanks in advance.
DispatcherTimer timer;
public TimeSpan duration;
public Window1()
{
InitializeComponent();
timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromMilliseconds(400);
timer.Tick += new EventHandler(timer_tick);
Loaded += new RoutedEventHandler(Window_Loaded);
}
private void mediaElement1_MediaOpened(object sender, RoutedEventArgs e)
{
if (mediaElement1.NaturalDuration.HasTimeSpan)
{
TimeSpan ts = mediaElement1.NaturalDuration.TimeSpan;
slider1.Maximum = ts.TotalSeconds;
slider1.SmallChange = 1;
slider1.LargeChange = Math.Min(10, ts.Seconds / 10);
}
timer.Start();
}
private void timer1_Tick(object sender, EventArgs e)
{
slider1.Value = mediaElement1.Position.TotalSeconds;
}
take a look at this
http://msdn.microsoft.com/en-us/library/system.threading.timer.aspx
You can implement this but you will have to pass references to your controls/window because without having references to your controls, the thread/timer object cannot modify controls (ie text etc).
Hope that helps!
Edit: Sorry I misread, but definately check whether the timer youre using can make changes to your elements
Related
I'm new to CS and WPF. I'm going to get a DateTime object and set it as the beginning of my timer. But I used DispatcherTimer.Tick. I can feel it inaccurate with a little care and playing with window controls. It apparently its in a single thread beside other functions of program.
DispatcherTimer timer = new DispatcherTimer();
timer.Interval = TimeSpan.FromSeconds(1);
timer.Tick += timer_Tick;
timer.Start();
void timer_Tick(object sender, EventArgs e)
{
dateTime = dateTime.AddSeconds(1);
TimeTb.Text = dateTime.ToLongTimeString();
}
Is there another method to use for a more accurate timer?
Do not add up seconds. This is accurate:
private TimeSpan offset;
void timer_Tick(object sender, EventArgs e)
{
TimeTb.Text = (DateTime.Now - offset).ToLongTimeString();
}
If you want to show the time elapsed since a start time:
private DateTime start = DateTime.Now;
void timer_Tick(object sender, EventArgs e)
{
TimeTb.Text = (DateTime.Now - start).ToString();
}
Definitely. Take a look at the System.Diagnostics.Stopwatch class. You're re-inventing the wheel!
In this code after starting timer again it starts from the current value instead of the vale it stopped. How to pause this timer?
public Page1()
{
InitializeComponent();
_rnd = new Random();
_timer = new DispatcherTimer();
_timer.Tick += new EventHandler(TimerTick);
_timer.Interval = new TimeSpan(0, 0, 0, 1);
}
void TimerTick(object sender, EventArgs e)
{
var time = DateTime.Now - _startTime;
txtTime.Text = string.Format(Const.TimeFormat, time.Hours, time.Minutes, time.Seconds);
}
public void NewGame()
{
_moves = 0;
txtMoves.Text = "0";
txtTime.Text = Const.DefaultTimeValue;
Scrambles();
while (!CheckIfSolvable())
{
Scrambles();
}
_startTime = DateTime.Now;
_timer.Start();
//GridScrambling.Visibility = System.Windows.Visibility.Collapsed;
}
private void Pause_Click(object sender, System.Windows.RoutedEventArgs e)
{
// TODO: Add event handler implementation here.
NavigationService.Navigate(new Uri("/Page4.xaml", UriKind.Relative));
_timer.Stop();
}
private void Play_Loaded(object sender, System.Windows.RoutedEventArgs e)
{
// TODO: Add event handler implementation here.
_timer.Start();
}
As this says that the Stop method only changes the IsEnabled property and this says that this property only prevents the Tick event to be raised, I don't think that there is a method to simply 'pause' the timer. The best way is to reinitialize the timer each time you have "paused" it, if you really want it to start clean again.
But I do not think that this is you real problem. When you pause your game the timer stops working. When you continue it the timer starts working again. When you now try the calculate the time from THIS moment till the start time, then you make a big mistake: you have to ignore the paused time. Because when you play the game 2s, then pause it for 10s and then continue the game, the timer shows 12s, instead of 2s, doesn't it? Maybe you should store the paused times in a variable and substract that from the real game time.
I have a sync timer in my app that fires up a function at a given time... now I want to know how much time is left until the next call to that function.
This is my call to the timer:
var syncTime = time.activitylog;
double time = TimeSpan.Parse(syncTime).TotalMilliseconds;
System.Timers.Timer myTimer = new System.Timers.Timer();
myTimer.Elapsed += new ElapsedEventHandler(DisplayTimeEvent);
myTimer.Interval = time;
myTimer.Start();
How do I get the time until next call?
Thanks
You can use another timer, and set the Interval of that the value that you want,exactly a part time of the Interval of original timer.
Then start them Simultaneously,I mean at the same time.
UPDATE :
Maybe this code describes my solution better :
public Form1()
{
InitializeComponent();
}
System.Windows.Forms.Timer trOriginal = new System.Windows.Forms.Timer();
System.Windows.Forms.Timer trRemain = new System.Windows.Forms.Timer();
double remain = 0;
private void button1_Click(object sender, EventArgs e)
{
trOriginal.Interval = 1000;
trRemain.Interval = 1;
trOriginal.Tick += new EventHandler(trOriginal_Tick);
trRemain.Tick += new EventHandler(trRemain_Tick);
trOriginal.Start();
trRemain.Start();
}
void trRemain_Tick(object sender, EventArgs e)
{
remain -= trRemain.Interval;
Console.WriteLine("remain MS to next event : " + remain);
}
void trOriginal_Tick(object sender, EventArgs e)
{
remain = trOriginal.Interval;
}
You can use a System.Diagnostics.Stopwatch to keep track of how much time has passed already and restart the Stopwatch with every tick of your Timer.
Stopwatch watch = new Stopwatch();
private void DisplayTimeEvent(object sender, EventArgs e)
{
watch.Restart();
// Whatever is supposed to happen, when the timer ticks
}
Now whenever you want to know how much time is left until the event is fired next, you can do this:
long timeLeft = myTimer.Interval - watch.ElapsedMilliseconds;
I have four buttons that are called "ship1,ship2" etc.
I want them to move to the right side of the form (at the same speed and starting at the same time), and every time I click in one "ship", all the ships should stop.
I know that I need to use a timer (I have the code written that uses threading, but it gives me troubles when stopping the ships.) I don't know how to use timers.
I tried to read the timer info in MDSN but I didn't understand it.
So u can help me?
HERES the code using threading.
I don't want to use it. I need to use a TIMER! (I posted it here because it doesnt give me to post without any code
private bool flag = false;
Thread thr;
public Form1()
{
InitializeComponent();
}
private void button2_Click(object sender, EventArgs e)
{
flag = false;
thr = new Thread(Go);
thr.Start();
}
private delegate void moveBd(Button btn);
void moveButton(Button btn)
{
int x = btn.Location.X;
int y = btn.Location.Y;
btn.Location = new Point(x + 1, y);
}
private void Go()
{
while (((ship1.Location.X + ship1.Size.Width) < this.Size.Width)&&(flag==false))
{
Invoke(new moveBd(moveButton), ship1);
Thread.Sleep(10);
}
MessageBox.Show("U LOOSE");
}
private void button1_Click(object sender, EventArgs e)
{
flag = true;
}
Have you googled Windows.Forms.Timer?
You can start a timer via:
Timer timer = new Timer();
timer.Interval = 1000; //one second
timer.Elapsed += new System.Timers.ElapsedEventHandler(timer_Elapsed);
timer.Enabled = true;
timer.Start();
You'll need an event handler to handle the Elapsed event which is where you'll put the code to handle moving the 'Button':
private void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
MoveButton();
}
I would like to delay an action by several seconds after a mouse pointer has entered and remained for period of time in a winform graphics rectangle. What would be a way to do this?
Thanks
c#, .net 2.0, winform
private Timer timer;
private void rect_MouseEnter(object sender, EventArgs e)
{
timer = new Timer();
timer.Interval = 3000;
timer.Start();
timer.Tick += new EventHandler(t_Tick);
}
private void rect_MouseLeave(object sender, EventArgs e)
{
timer.Dispose();
}
void t_Tick(object sender, EventArgs e)
{
timer.Dispose();
MessageBox.Show(#"It has been over for 3 seconds");
}
Something such as:
static void MouseEnteredYourRectangleEvent(object sender, MouseEventArgs e)
{
Timer delayTimer = new Timer();
delayTimer.Interval = 2000; // 2000msec = 2 seconds
delayTimer.Tick += new ElapsedEventHandler(delayTimer_Elapsed);
}
static void delayTimer_Elapsed(object sender, EventArgs e)
{
if(MouseInRectangle())
DoSomething();
((Timer)sender).Dispose();
}
Probably could be done more efficiently, but should work :D
Two ways to set up MouseInRectangle -> one is to make it get the current mouse coordinates and the position of the control and see if it's in it, another way would be a variable which you would set to false on control.mouse_leave.
Try using the Timer control (System.Windows.Forms.Timer).
Please notice System.Windows.Forms.Timer is not Exact and you cannot rely it will act on exactly the interval given.
it would be prefeable to use System.Times.timer and use the Invoke action to return to the GUI thread.