I am working on an wpf project with leap motion. My programm is allways checking for input via the leap motion controller and does something with it.
But when I open another programm (and my wpf gets in the background) my wpf freezes.
Is there a way my programm will not freeze even if I open another programm in fullscreen ?
EDIT:
here is how i get my input:
public MainWindow()
{
InitializeComponent();
CompositionTarget.Rendering += Update;
}
protected void Update(object sender, EventArgs e)
{
//get frame
Leap.Frame frame = leap.Frame();
...
}
Thank you Charles Ward this did it for me:
controller.SetPolicy(Controller.PolicyFlag.POLICY_BACKGROUND_FRAMES);
Leap doesn't seem to update when wpf window isn't active
Related
I am currently working with .NET 4.5. Programming a photobooth. The photobooth should start wit fullscreen:
Show an Intro screen with an intro video.
When the user clicks on the screen, it has to show a get ready! video
When the get ready video finishes playing, it has to show a countdown video
When the countdown video finishes, it has to take a picture.
Right now I can do #1 and #2. I can also take pictures. My problem is with the sequence. Once a video finishes, I need to change the video, but since everything runs in the event handler, it only plays the video WHILE the program is running the event handler.
Is there any better and smarter way to do this?
Here is my code:
What I have and works right now:
private void Form1_Load(object sender, EventArgs e)
{
// maximize the screen
FormBorderStyle = FormBorderStyle.None;
WindowState = FormWindowState.Maximized;
TopMost = true;
// play an intro video without the UI controls
this.videoPath = this.basePath + "intro.mp4";
this.wmpVideo.URL = this.videoPath;
this.wmpVideo.settings.setMode("Loop", true);
this.wmpVideo.Ctlcontrols.play();
this.wmpVideo.uiMode = "none";
}
Then, if the user clicks on the video, it will change the video to a new file:
private void wmpVideo_MouseDownEvent(object sender, AxWMPLib._WMPOCXEvents_MouseDownEvent e)
{
if (this.current == 0) //this means that currently we are in the intro
{
// Then I change the video to "get ready!"
this.changeVideo("getready.mp4",1);
}
changeVideo basically updates the video to getready.mp4. Then, I need it to change it to countdown.mp4.
In order to move from one video to another, I need to check when the video finishes. I do this right now with:
wmpVideo.PlayStateChange += new AxWMPLib._WMPOCXEvents_PlayStateChangeEventHandler(checkGetReadyFinished);
And the event handler looks like this:
private void checkGetReadyFinished(object sender, AxWMPLib._WMPOCXEvents_PlayStateChangeEvent e)
{
if (e.newState == 8) {
// If we are currently in the "getready state"
if (this.current == 1)
{
// then I change the video to the countdown.mp4
this.changeVideo("countdown.mp4", 2);
}
}
}
PROBLEM
I noticed the video ONLY plays when I am on the event handler method. I realized this because I saw that no video was played, so I added a MessageBox in the changeVideo method. I saw that as long as the MessageBox was showing, the video was playing. When I clicked "OK", the video disappeared
I.E., I need to stay in the event handler method.
QUESTION
Is there any other better way to show a video1, then show video2 when video1 finishes. As I mentioned, I need to do a photobooth program.
I also tried calling another form, but as soon as I set it to fullscreen, the screen sort of flashes.
Is there any optimal way of doing this?
I have created an app, this app helps us to lock the windows phone screen with one touch. Now I want to play a sound when it locks the screen. I've tried to use MediaElement but it doesn't work.
This is my code (audio is MediaElement's name) :
public MainPage()
{
InitializeComponent();
audio.play();
new WPRequestScreenClosed().RequestLockScreen();
Application.Current.Terminate();
}
Any help would be much appreciated!
You could use the MediaEnded event to know when the sound is done playing and then close the application at that point.
private void MediaElement_MediaEnded_1(object sender, RoutedEventArgs e)
{
Application.Current.Terminate();
}
I'm developing an App for windows 8.1 and i need to execute a method to pause some tasks or play a sound when the app is minimized in the sidebar.
I tried:
Application.Current.Suspending += new SuspendingEventHandler(Method_Name);
private void Method_Name(object sender, object e)
{
Other_Method();
}
But this event takes a few seconds (5~10) to occur after I minimize the app.
What event occurs when the app is dragged to the sidebar? What process sends the event?
Thanks.
Check out this post for the answer. It's WindowSizeChanged and check the value of ApplicationView.Value.
[EDIT]
Apparently for 8.1 things have changed a bit. The ApplicationView stuff is deprecated (that was quick) but this still takes place in SizeChanged for the window. Check out this for more details.
After long searching I found something that is not exactly what i wanted, but it works.
This event occurs everytime that visibility of the page changes (Is started, is maximized or minimized for exemple), then you must do some conditions using the if operator.
Window.Current.VisibilityChanged += new WindowVisibilityChangedEventHandler(One_Method);
private void One_Method(object sender, Windows.UI.Core.VisibilityChangedEventArgs e)
{
if(Some_Condition)
{
//TODO: Code that you want execute.
}
}
I'll keep the answer in open for the case of someone knows something more efficient.
I would like to make and App that when users set an alarm (like wake up alarm) and alarms sounds, doesnt show a message dialog to confirm and stop the alarm.
On web I have discovered some methods called Obscured and UnObscured that fired when the message's alarm shows, but the message still showed!
In Code:
public OverAlarmPage()
{
InitializeComponent();
PhoneApplicationFrame phoneAppRootFrame = (Application.Current as App).RootFrame;
phoneAppRootFrame.Obscured += OnObscured;
phoneAppRootFrame.Unobscured += Unobscured;
}
void OnObscured(Object sender, ObscuredEventArgs e)
{
txtStatus.Text = "Obscured event occurred";
}
void Unobscured(Object sender, EventArgs e)
{
txtStatus.Text = "Unobscured event occurred";
}
I just want to make stop the alarm sound with the vibrating of mobile (with gyroscope) but without the hell message!
There are any solution or is this a O.S feature that i cant touch?
The built in notification classes (Alarm and Reminder) don't support any customization of the UI that is displayed when they are triggered.
The only alternative I can think of would require the application to remain running (possibly under the lock screen) and then you just play the sound from the app at the appropriate time.
Obviously this requires that the app remain running though.
Other than that you will be prevented from trying to create the behaviour you are after.
I would like to place a pause within a click event in my application. I am placing a vibration within the click event, and sometimes when a new page is navigated to, the vibration does not stop. I'm hoping that the pause will help solve this issue.
MainPage.xaml.cs
void newButton_Click(object sender, EventArgs e)
{
//Button vibration
if (Settings.EnableVibration.Value)
{
VibrateController.Default.Start(TimeSpan.FromMilliseconds(40));
//place vibration stop here
}
...
}
According to this article, the minimal duration is 0.1 seconds, while you are setting it to 0.04. Also I would try to call the VibrateController.Stop() method.
Solved with VibrationController.Default.Stop();