How can I periodicaly get data from a CAN interface that works in "Transmit by response" mode??
Hello Again!
I am a very new user of LabView, and last week I got the order to implement a Comunication with a CAN interface.
I am trying to get Information from a CAN interface, that works as a "slave", as it is said in the very short handbook. This means it only responds, when it is asked to.
As i want to get the 20 different datas periodicaly it would be fine to do this in a kind of loop. This means:
-tell the interface to send data1
-read data 1
-tell the interface to send data 2
Are there any examples or ideas, how to create similar loops?
As I am absolutely no expert in computing, it would be nice if you answer with very little technical terms...
Thanks RT
Hi RT,
Try the attached example, which writes a remote frame to your slave and reads the response. It is doing this 20 times in a for loop and a specified timing.
Hope that helps.
DirkW
Attachments:
CAN Receive Periodic using Remote.vi 97 KB
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Net;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Navigation;
using Microsoft.Phone.Controls;
using Microsoft.Phone.Shell;
using iClips.Resources;
using System.ComponentModel;
using System.Threading;
using System.IO;
using System.IO.IsolatedStorage;
using Microsoft.Devices;
using System.Windows.Media;
using Microsoft.Xna.Framework.Media;
using System.Windows.Media.Imaging;
using System.Threading.Tasks;
using System.Text;
using Windows.Storage;
using System.Windows.Threading;
using System.Diagnostics;
using System.Globalization;
namespace iClips
public partial class MainPage : PhoneApplicationPage
Boolean bSignUp;
HyperlinkButton BtnSignIn, BtnSignUp, BtnSignUpSubmit;
TextBox TbUN, TbPW, TbCPW, TbEmail;
TextBlock un, title;
System.DateTime startTime;
// Viewfinder for capturing video.
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// Source and device for capturing video.
private CaptureSource captureSource;
private CaptureDevice vcDevice;
double w, h;
// File details for storing the recording.
private IsolatedStorageFileStream isoVideoFile;
private FileSink fileSink;
private string isoVideoFileName = "CameraMovie.mp4";
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private ButtonState currentAppState;
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SocketClient sock = new SocketClient();
// Constructor
public MainPage()
InitializeComponent();
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PhoneAppBar.IsVisible = true;
StartRecording = ((ApplicationBarIconButton)ApplicationBar.Buttons[0]);
StopPlaybackRecording = ((ApplicationBarIconButton)ApplicationBar.Buttons[1]);
StartPlayback = ((ApplicationBarIconButton)ApplicationBar.Buttons[2]);
PausePlayback = ((ApplicationBarIconButton)ApplicationBar.Buttons[3]);
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/*Uri uri = new Uri("/Assets/home_icons/myFriends.png", UriKind.Relative);
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Image image = new Image();
image.Source = imgSource;
load_friends.Content = image;*/
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// remove all elements inside sign grid
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MyGrid.Children.RemoveAt(index);
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BtnSignUp.Click += new RoutedEventHandler(SignUp_Tab);
BtnSignUp.VerticalAlignment = VerticalAlignment.Bottom;
un = new TextBlock();
un.Text = "Enter your Username:";
un.VerticalAlignment = VerticalAlignment.Bottom;
un.HorizontalAlignment = HorizontalAlignment.Center;
TextBlock pw = new TextBlock();
pw.Text = "Enter your Password:";
pw.VerticalAlignment = VerticalAlignment.Bottom;
pw.HorizontalAlignment = HorizontalAlignment.Center;
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TbUN.Opacity = 0.5;
TbUN.Text = "";
TbUN.FontSize = 16;
TbUN.FontWeight = FontWeights.ExtraBold;
TbUN.Foreground = new SolidColorBrush(Colors.Black);
TbUN.Background = new SolidColorBrush(Colors.Transparent);
TbUN.VerticalAlignment = VerticalAlignment.Top;
TbUN.Height = 70;
TbUN.Tap += TbUN_Tap;
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TbPW = new TextBox();
TbPW.Opacity = 0.5;
TbPW.Text = "";
TbPW.FontSize = 16;
TbPW.FontWeight = FontWeights.ExtraBold;
TbPW.Foreground = new SolidColorBrush(Colors.Black);
TbPW.Background = new SolidColorBrush(Colors.Transparent);
TbPW.VerticalAlignment = VerticalAlignment.Top;
TbPW.Height = 70;
TbPW.Tap += TbPW_Tap;
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MyGrid.Background = new SolidColorBrush(Colors.Blue);
// Create Row for Username Textblock
RowDefinition gridRow0 = new RowDefinition();
gridRow0.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow0);
// Create Row for Username
RowDefinition gridRow1 = new RowDefinition();
gridRow1.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow1);
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RowDefinition gridRow2a = new RowDefinition();
gridRow2a.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow2a);
//create row for password
RowDefinition gridRow2 = new RowDefinition();
gridRow2.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow2);
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RowDefinition gridRow3 = new RowDefinition();
gridRow3.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow3);
//create row for << Sign Up >>
RowDefinition gridRow4 = new RowDefinition();
gridRow4.Height = new GridLength(120);
MyGrid.RowDefinitions.Add(gridRow4);
Grid.SetRow(un, 0);
Grid.SetColumn(un, 0);
Grid.SetRow(TbUN, 1);
Grid.SetColumn(TbUN, 0);
Grid.SetRow(pw, 2);
Grid.SetColumn(pw, 0);
Grid.SetRow(TbPW, 3);
Grid.SetColumn(TbPW, 0);
Grid.SetRow(BtnSignIn, 4);
Grid.SetColumn(BtnSignIn, 0);
Grid.SetRow(BtnSignUp, 5);
Grid.SetColumn(BtnSignUp, 0);
MyGrid.Children.Add(un);
MyGrid.Children.Add(TbUN);
MyGrid.Children.Add(pw);
MyGrid.Children.Add(TbPW);
MyGrid.Children.Add(BtnSignIn);
MyGrid.Children.Add(BtnSignUp);
private void SignUp_Tab(object sender, RoutedEventArgs e)
MessageBox.Show("Welcome to Sign up.\n\nYou need 3 things to create an account:\n1. A unique Case-Sensitive Username. ex 'iClips' is not the same as 'Iclips'\n2. A password to secure you account. \n3. A profile photo for easy recognition.\nThank you.");
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for (int index = MyGrid.Children.Count - 1; index >= 0; index--)
MyGrid.Children.RemoveAt(index);
//repopulate grid with Sign Up elements
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title = new TextBlock();
title.Text = "--- Sign Up 1/2 ---";
title.VerticalAlignment = VerticalAlignment.Top;
title.HorizontalAlignment = HorizontalAlignment.Center;
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TbUN = new TextBox();
TbUN.Opacity = 0.5;
TbUN.Text = "Username";
TbUN.FontSize = 16;
TbUN.FontWeight = FontWeights.ExtraBold;
TbUN.Foreground = new SolidColorBrush(Colors.Black);
TbUN.Background = new SolidColorBrush(Colors.Transparent);
TbUN.VerticalAlignment = VerticalAlignment.Top;
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TbUN.Tap += TbUN_Tap;
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TbPW.Opacity = 0.5;
TbPW.Text = "Password";
TbPW.FontSize = 16;
TbPW.FontWeight = FontWeights.ExtraBold;
TbPW.Foreground = new SolidColorBrush(Colors.Black);
TbPW.Background = new SolidColorBrush(Colors.Transparent);
TbPW.VerticalAlignment = VerticalAlignment.Top;
TbPW.Height = 70;
TbPW.Tap += TbPW_Tap;
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TbCPW = new TextBox();
TbCPW.Opacity = 0.5;
TbCPW.Text = "Confirm Password";
TbCPW.FontSize = 16;
TbCPW.FontWeight = FontWeights.ExtraBold;
TbCPW.Foreground = new SolidColorBrush(Colors.Black);
TbCPW.Background = new SolidColorBrush(Colors.Transparent);
TbCPW.VerticalAlignment = VerticalAlignment.Top;
TbCPW.Height = 70;
TbCPW.Tap += TbCPW_Tap;
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TbEmail = new TextBox();
TbEmail.Opacity = 0.5;
TbEmail.Text = "Email (Optional)";
TbEmail.FontSize = 16;
TbEmail.FontWeight = FontWeights.ExtraBold;
TbEmail.Foreground = new SolidColorBrush(Colors.Black);
TbEmail.Background = new SolidColorBrush(Colors.Transparent);
TbEmail.VerticalAlignment = VerticalAlignment.Top;
TbEmail.Height = 70;
TbEmail.Tap += TbEmail_Tap;
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BtnGoBack.Content = "<< Go Back ";
BtnGoBack.Click += new RoutedEventHandler(BtnGoBack_Tab);
BtnGoBack.VerticalAlignment = VerticalAlignment.Bottom;
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BtnSignUpSubmit.Content = "<< Sign Up >>";
BtnSignUpSubmit.Click += new RoutedEventHandler(BtnSignUpSubmit_Tab);
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RowDefinition gridRow0 = new RowDefinition();
gridRow0.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow0);
// Create Row for Username
RowDefinition gridRow1 = new RowDefinition();
gridRow1.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow1);
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RowDefinition gridRow2a = new RowDefinition();
gridRow2a.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow2a);
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gridRow2.Height = new GridLength(60);
MyGrid.RowDefinitions.Add(gridRow2);
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MyGrid.RowDefinitions.Add(gridRow3);
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Grid.SetColumn(title, 0);
Grid.SetRow(TbUN, 1);
Grid.SetColumn(TbUN, 0);
Grid.SetRow(TbPW, 2);
Grid.SetColumn(TbPW, 0);
Grid.SetRow(TbCPW, 3);
Grid.SetColumn(TbCPW, 0);
Grid.SetRow(TbEmail, 4);
Grid.SetColumn(TbEmail, 0);
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Grid.SetColumn(BtnSignUpSubmit, 0);
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Grid.SetColumn(BtnGoBack, 0);
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MyGrid.Children.Add(TbUN);
MyGrid.Children.Add(TbPW);
MyGrid.Children.Add(TbCPW);
MyGrid.Children.Add(TbEmail);
MyGrid.Children.Add(BtnSignUpSubmit);
MyGrid.Children.Add(BtnGoBack);
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int d;
if (str.Length > 30)
MessageBox.Show("You may only use a maximum of 30 characters for your Username.\nThank you.");
return false;
for (d = 0; d < str.Length; d++)
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return true;
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success_callback(response.GetResponseStream());
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}, preq);
}, URL);
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if (bSignUp)
bSignUp = false;
// Show error message
MessageBox.Show("Connection Error!\n\n" + p);
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TbPW.IsEnabled = true;
TbCPW.IsEnabled = true;
TbEmail.IsEnabled = true;
BtnSignUpSubmit.IsEnabled = false;
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TbCPW.SelectAll();
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if (TbUN.Text.ToString() == "" || TbPW.Text.ToString() == "")
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return;
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TbUN.SelectAll();
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private void TbPW_Tap(object sender, System.Windows.Input.GestureEventArgs e)
TbPW.SelectAll();
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base.OnNavigatedTo(e);
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DisposeVideoRecorder();
base.OnNavigatedFrom(e);
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//of the item you're going to rotate
//I did not test this approach, maybe You're going to need to use actual coordinates
//so this bit is for information purposes only
MyGrid.RenderTransformOrigin = new Point(0.5, 0.5);
MyGrid.RenderTransform = rt;
if (e.Orientation == PageOrientation.LandscapeRight)
txtDebug.Text = "LandscapeRight";
// Rotate for LandscapeRight orientation.
//videoRecorderBrush.RelativeTransform =
//new CompositeTransform() { CenterX = 0.5, CenterY = 0.5, Rotation = 180 };
//rotate logo
if (logo != null)
RotateTransform rt = new RotateTransform();
rt.Angle = -90;
//default rotation is around top left corner of the control,
//but you sometimes want to rotate around the center of the control
//to do that, you need to set the RenderTransFormOrigin
//of the item you're going to rotate
//I did not test this approach, maybe You're going to need to use actual coordinates
//so this bit is for information purposes only
logo.RenderTransformOrigin = new Point(0.5, 0.5);
logo.RenderTransform = rt;
//rotate sign in link
if (MyGrid != null)
RotateTransform rt = new RotateTransform();
rt.Angle = -90;
//default rotation is around top left corner of the control,
//but you sometimes want to rotate around the center of the control
//to do that, you need to set the RenderTransFormOrigin
//of the item you're going to rotate
//I did not test this approach, maybe You're going to need to use actual coordinates
//so this bit is for information purposes only
MyGrid.RenderTransformOrigin = new Point(0.5, 0.5);
MyGrid.RenderTransform = rt;
if (e.Orientation == PageOrientation.PortraitDown)
txtDebug.Text = "PortraitDown";
videoRecorderBrush.RelativeTransform =
new CompositeTransform() { CenterX = 0.5, CenterY = 0.5, Rotation = 270 };
// Provide auto-focus with a half button press using the hardware shutter button.
private void OnButtonHalfPress(object sender, EventArgs e)
// Focus when a capture is not in progress.
try
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "Half Button Press: Auto Focus";
catch (Exception focusError)
// Cannot focus when a capture is in progress.
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = focusError.Message;
// Capture the image with a full button press using the hardware shutter button.
private void OnButtonFullPress(object sender, EventArgs e)
// Focus when a capture is not in progress.
try
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "Full Button Press: Auto Focus";
catch (Exception focusError)
// Cannot focus when a capture is in progress.
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = focusError.Message;
// Cancel the focus if the half button press is released using the hardware shutter button.
private void OnButtonRelease(object sender, EventArgs e)
try
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "Shutter is released: Auto Focus";
catch (Exception focusError)
// Cannot focus when a capture is in progress.
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = focusError.Message;
// Update the buttons and text on the UI thread based on app state.
private void UpdateUI(ButtonState currentButtonState, string statusMessage)
// Run code on the UI thread.
Dispatcher.BeginInvoke(delegate
switch (currentButtonState)
// When the camera is not supported by the phone.
case ButtonState.CameraNotSupported:
StartRecording.IsEnabled = false;
StopPlaybackRecording.IsEnabled = false;
StartPlayback.IsEnabled = false;
PausePlayback.IsEnabled = false;
break;
// First launch of the application, so no video is available.
case ButtonState.Initialized:
StartRecording.IsEnabled = true;
StopPlaybackRecording.IsEnabled = false;
StartPlayback.IsEnabled = false;
PausePlayback.IsEnabled = false;
break;
// Ready to record, so video is available for viewing.
case ButtonState.Ready:
StartRecording.IsEnabled = true;
StopPlaybackRecording.IsEnabled = false;
StartPlayback.IsEnabled = true;
PausePlayback.IsEnabled = false;
break;
// Video recording is in progress.
case ButtonState.Recording:
StartRecording.IsEnabled = false;
StopPlaybackRecording.IsEnabled = true;
StartPlayback.IsEnabled = false;
PausePlayback.IsEnabled = false;
break;
// Video playback is in progress.
case ButtonState.Playback:
StartRecording.IsEnabled = false;
StopPlaybackRecording.IsEnabled = true;
StartPlayback.IsEnabled = false;
PausePlayback.IsEnabled = true;
break;
// Video playback has been paused.
case ButtonState.Paused:
StartRecording.IsEnabled = false;
StopPlaybackRecording.IsEnabled = true;
StartPlayback.IsEnabled = true;
PausePlayback.IsEnabled = false;
break;
default:
break;
// Display a message.
txtDebug.Text = statusMessage;
// Note the current application state.
currentAppState = currentButtonState;
public void InitializeVideoRecorder()
if (captureSource == null)
// Create the VideoRecorder objects.
captureSource = new CaptureSource();
fileSink = new FileSink();
vcDevice = CaptureDeviceConfiguration.GetDefaultVideoCaptureDevice();
// Add eventhandlers for captureSource.
captureSource.CaptureFailed += new EventHandler<ExceptionRoutedEventArgs>(OnCaptureFailed);
// Initialize the camera if it exists on the phone.
if (vcDevice != null)
// Create the VideoBrush for the viewfinder.
videoRecorderBrush = new VideoBrush();
videoRecorderBrush.SetSource(captureSource);
// Display the viewfinder image on the rectangle.
viewfinderRectangle.Fill = videoRecorderBrush;
// Start video capture and display it on the viewfinder.
captureSource.Start();
// Set the button state and the message.
UpdateUI(ButtonState.Initialized, "Tap record to start recording...");
else
// Disable buttons when the camera is not supported by the phone.
UpdateUI(ButtonState.CameraNotSupported, "A camera is not supported on this phone.");
// Set recording state: start recording.
private void StartVideoRecording()
try
// Connect fileSink to captureSource.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Started)
captureSource.Stop();
// Connect the input and output of fileSink.
fileSink.CaptureSource = captureSource;
fileSink.IsolatedStorageFileName = isoVideoFileName;
// Begin recording.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Stopped)
captureSource.Start();
// Set the button states and the message.
UpdateUI(ButtonState.Recording, "Recording...");
StartTimer();
// If recording fails, display an error.
catch (Exception e)
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "ERROR: " + e.Message.ToString();
//start the timer
private void StartTimer()
dispatcherTimer = new System.Windows.Threading.DispatcherTimer();
dispatcherTimer.Tick += new EventHandler(dispatcherTimer_Tick);
dispatcherTimer.Interval = new TimeSpan(0, 0, 1);
dispatcherTimer.Start();
startTime = System.DateTime.Now;
private void StopTimer()
dispatcherTimer.Stop();
private void dispatcherTimer_Tick(object sender, EventArgs e)
System.DateTime now = System.DateTime.Now;
txtRecTime.Text = now.Subtract(startTime).ToString();
// Set the recording state: stop recording.
private void StopVideoRecording()
try
// Stop recording.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Started)
captureSource.Stop();
// Disconnect fileSink.
fileSink.CaptureSource = null;
fileSink.IsolatedStorageFileName = null;
// Set the button states and the message.
UpdateUI(ButtonState.Stopped, "Preparing viewfinder...");
StopTimer();
StartVideoPreview();
// If stop fails, display an error.
catch (Exception e)
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "ERROR: " + e.Message.ToString();
// Set the recording state: display the video on the viewfinder.
private void StartVideoPreview()
try
// Display the video on the viewfinder.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Stopped)
// Add captureSource to videoBrush.
videoRecorderBrush.SetSource(captureSource);
// Add videoBrush to the visual tree.
viewfinderRectangle.Fill = videoRecorderBrush;
captureSource.Start();
// Set the button states and the message.
UpdateUI(ButtonState.Ready, "Ready to record.");
// If preview fails, display an error.
catch (Exception e)
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "ERROR: " + e.Message.ToString();
// Start the video recording.
private void StartRecording_Click(object sender, EventArgs e)
// Avoid duplicate taps.
StartRecording.IsEnabled = false;
StartVideoRecording();
// Handle stop requests.
private void StopPlaybackRecording_Click(object sender, EventArgs e)
// Avoid duplicate taps.
StopPlaybackRecording.IsEnabled = false;
// Stop during video recording.
if (currentAppState == ButtonState.Recording)
StopVideoRecording();
// Set the button state and the message.
UpdateUI(ButtonState.NoChange, "Recording stopped.");
// Stop during video playback.
else
// Remove playback objects.
DisposeVideoPlayer();
StartVideoPreview();
// Set the button state and the message.
UpdateUI(ButtonState.NoChange, "Playback stopped.");
// Start video playback.
private void StartPlayback_Click(object sender, EventArgs e)
// Avoid duplicate taps.
StartPlayback.IsEnabled = false;
// Start video playback when the file stream exists.
if (isoVideoFile != null)
VideoPlayer.Play();
// Start the video for the first time.
else
// Stop the capture source.
captureSource.Stop();
// Remove VideoBrush from the tree.
viewfinderRectangle.Fill = null;
// Create the file stream and attach it to the MediaElement.
isoVideoFile = new IsolatedStorageFileStream(isoVideoFileName,
FileMode.Open, FileAccess.Read,
IsolatedStorageFile.GetUserStoreForApplication());
VideoPlayer.SetSource(isoVideoFile);
// Add an event handler for the end of playback.
VideoPlayer.MediaEnded += new RoutedEventHandler(VideoPlayerMediaEnded);
// Start video playback.
VideoPlayer.Play();
// Set the button state and the message.
UpdateUI(ButtonState.Playback, "Playback started.");
// Pause video playback.
private void PausePlayback_Click(object sender, EventArgs e)
// Avoid duplicate taps.
PausePlayback.IsEnabled = false;
// If mediaElement exists, pause playback.
if (VideoPlayer != null)
VideoPlayer.Pause();
// Set the button state and the message.
UpdateUI(ButtonState.Paused, "Playback paused.");
private void DisposeVideoPlayer()
if (VideoPlayer != null)
// Stop the VideoPlayer MediaElement.
VideoPlayer.Stop();
// Remove playback objects.
VideoPlayer.Source = null;
isoVideoFile = null;
// Remove the event handler.
VideoPlayer.MediaEnded -= VideoPlayerMediaEnded;
private void DisposeVideoRecorder()
if (captureSource != null)
// Stop captureSource if it is running.
if (captureSource.VideoCaptureDevice != null
&& captureSource.State == CaptureState.Started)
captureSource.Stop();
// Remove the event handler for captureSource.
captureSource.CaptureFailed -= OnCaptureFailed;
// Remove the video recording objects.
captureSource = null;
vcDevice = null;
fileSink = null;
videoRecorderBrush = null;
// If recording fails, display an error message.
private void OnCaptureFailed(object sender, ExceptionRoutedEventArgs e)
this.Dispatcher.BeginInvoke(delegate()
txtDebug.Text = "ERROR: " + e.ErrorException.Message.ToString();
// Display the viewfinder when playback ends.
public void VideoPlayerMediaEnded(object sender, RoutedEventArgs e)
// Remove the playback objects.
DisposeVideoPlayer();
StartVideoPreview();
public void SetScreenResolution()
w = Application.Current.Host.Content.ActualWidth;
h = Application.Current.Host.Content.ActualHeight;
setResViewF(w, h);
public void setResViewF(double width, double height)
viewfinderRectangle.Width = width;
viewfinderRectangle.Height = height;
resMI.Content = "resolution: " + width + "*" + height;
private void resMI_Click(object sender, RoutedEventArgs e)
switch (resMI.Content.ToString())
case "resolution: 176*220":
setResViewF(240, 320);
break;
case "resolution: 240*320":
setResViewF(360, 480);
break;
case "resolution: 360*480":
setResViewF(480, 800);
break;
case "resolution: 480*800":
setResViewF(1440, 720);
break;
case "resolution: 1440*720":
setResViewF(1920, 1080);
break;
case "resolution: 1920*1080":
setResViewF(176, 220);
break;
default:
setResViewF(176, 220);
break;
public void WriteToFile(string key, string value)
var Iso_settings = System.IO.IsolatedStorage.IsolatedStorageSettings.ApplicationSettings;
if (!Iso_settings.Contains(key))
Iso_settings.Add(key, value);
Iso_settings.Save();//This will save your data in isolated storage.
public string ReadFromFile(string key)
var Iso_settings = System.IO.IsolatedStorage.IsolatedStorageSettings.ApplicationSettings;
if (Iso_settings.Contains(key))
return (string)Iso_settings[key];
else
return null;
public DispatcherTimer dispatcherTimer { get; set; }
private void ToggleZoom(MediaElement media)
if (media.Stretch != Stretch.UniformToFill)
// zoom
media.Stretch = Stretch.UniformToFill;
else
// unzoom
media.Stretch = Stretch.Uniform;
BtnSignUpSubmit_Tab is the HyperLinkButton that would trigger the web request process. I need this code to work perfectly because a lot of people will use this. If you can simplify the http web request that already feels so good. Thank you. -
Process Class:How to give and get data from an exe file continuously???
hi,,,
I am trying to run an executable file from my program to give it input and read its output....
And i am having problems...
The exe file takes one input and appends to it "1235" (ITS A TEST CASE).
When it is only for a single input , the program rums perfectly.. but when it is within a loop it does not
Pls help
Here is the code for that EXE file. (its in C)
#include<stdio.h>
int main()
char a[10];
int i;
int k=1235;
while(1){
scanf("%s",a);
if(a[0]=='s')
break;
printf("%s%d\n",a,k);
}Note that when i remove the loop here, my code is able to get and give it data.
My JAVA program::
import java.io.*;
public class Main {
public static void main(String[] args) throws IOException {
try {
String line;
Process p = Runtime.getRuntime().exec
("C:\\users\\Untitled3.exe");
BufferedWriter out=new BufferedWriter(new OutputStreamWriter(p.getOutputStream()));
out.write("dfgsfs\n");
time= java.lang.System.nanoTime();
out.flush();
BufferedReader input =new BufferedReader(new InputStreamReader(p.getInputStream()));
while ((line = input.readLine()) != null) {
System.out.println(input.readLine());
input.close();
catch (Exception err) {
err.printStackTrace();
}PLS HELPI see a problem in your C code. You're not flushing stdout after you printf and that usually means java is not seeing whats your C program is printing.
removing the loop probably works because stdout is being flushed right before exit.
I used a perl script to test your stuff and found that flushing made the trick
#!/usr/bin/perl
open(OUTFILE,">>./output.txt");
$| = 1;
while (<STDIN>) {
if (m/.*error.*/) {
print STDERR $_;
} else {
print STDOUT $_;
print OUTFILE $_;
if (m/exit/) {
last;
close(OUTFILE);
exit;notice "$| =1;" that autoflushes in perl (just in case you were wondering where my flush call went)
Enjoy! -
TS1424 How do I stop getting charges from itunes for stuff that was free?
How do I stop charges I am getting for apps that were free?
Is this what you are referring to...
http://support.apple.com/kb/HT3702 -
How can I get Data from the Sound cart in Labview? Does a VI exist?
How can I get Data from the Sound cart in Labview? Does a VI exist?
Yes, there are VIs for acquiring data from Sound cards. And examples too. If you don't have LabVIEW yet, do a search on NI's site for example VIs.
Khalid -
How can i get data from another database SQL Server use database link from
I have a database link from Oracle connect to SQL Server database with user cdit connect default database NorthWind.How can I get data from another database(this database in this SQL Server use this database link)?
hi,
u should see following documentation:
Oracle9i Heterogeneous Connectivity Administrator's Guide
Release 1 (9.0.1)
Part Number A88789_01
in it u just go to chapter no. 4 (using the gateway),,u'll find ur answer there.
regards
umar -
How can i get data from anather database system ????????
Hi every body..
I 've a problem .....
I've an old program work on "DOS" and it's content database which content all Data that i need for that program
The data file extension with ".FD" , ".VW" , ".LSS" & "SLP"
I want to kow:-
1) what is that database system
2)What program could open or can get data from that database tables.
3)can i do that with oracle...
please describe every thing in details...
... Please replay quickly... urgently
...waiting your answer....You're probably better off consulting the documentation for the DOS program you're trying to deal with than hoping someone here will be able to guess what program you're using, identify the structure of the files, and tell you how to extract the data into something Oracle can import.
Justin -
How can i get data from a maintance view?
Hi all.
Can you give me some suggestion about 'How can i get data from a maintance view?'?
Thanks
Best regardhi
good
go through this link
http://help.sap.com/saphelp_nw04/helpdata/en/cf/21ecdf446011d189700000e8322d00/content.htm
thanks
mrutyun^ -
How to get data from the Tables (Can func.module help then how to write )
Hi,
Can anyone tell the use of functional module to extract the data from R/3.i am working on PM module and need to extract the status of work order and equipment which i can get from First i had to get objnr then i had to go to jsto in jsto i get stsma and estat. by using estat and stsma i can get status in table tj30t here estat is same as stat in jest table.
how to get all these in bw . any help.
I need status of work orders and equipments which exists in tj30t or we can get from tj30 tables in the fields txt30 and txt04
Any one pls help to get all these stuff from R/3 to BW
Regards
Srini-----Hi
You need to enhance (write a user exit) for your Data Source.
Here are some links on UE:
Enhancment Framework
====================
SAP Help Enhancment Framework
http://help.sap.com/saphelp_nw2004s/helpdata/en/c2/eab541c5b63031e10000000a155106/frameset.htm
Enhancements in sap bw
https://www.sdn.sap.com/irj/servlet/prt/portal/prtroot/docs/library/uuid/59069d90-0201-0010-fd81-d5e11994d8b5
User Exit Enhancments
Enhancement
User exit
BADI
http://help.sap.com/saphelp_nw2004s/helpdata/en/c2/eab541c5b63031e10000000a155106/frameset.htm
Reg's
Edan -
How can i get data from the other system?
hi,
i want get some data from the other r3 system in my r3 system? now this two r3 system are installed two server.Hi,
U can achieve this by RFC function module...
create a function module and make it as REMOTE ENEBLED IN ATTRIBUTES TAB..
for example i have to r/3 systems as A and B.
I want to get data from B system..
so create the FM in B system and then in A SYSTEM u have to call that one ,like this....
DESTINATION NAME IS FOR SYSTEM B.
CALL FUNCTION 'ZRFC' DESTINATION <DESTINATION NAME>
EXPORTING
IMPORTING
TABLES..
Regards,
Nagaraj -
How can i get data from jcalendar in format dd/mm/yyyy
hello
i want to get data from jcaledar in format 06/12/2009
10xwhat is "jcalendar"?
for date conversions of all kinds use java.text.DateFormat or java.text.SimpleDateFormat. -
Can we get data from business views in CR 2008/XI?
Hi All,
Can we get data from business views in CR 2008/XI?
If its possible, pls let us know how to get connect with Business View in both of these versions and what is the tool that we have to use to create Business Views.
Thank you,
Krishna PingaliHi Krishna,
Crystal Reports/BusinessObjects Enterprise ( BOE ) Business Views can only be created using the BV build which comes with BOE and installed using the Work Station installer for BOE. for both XI and 2008.
You cannot mix these two versions on the same PC not can one talk to the other, the BV designer must match the same version as BOE. XI ( version 11.0 ) is no longer available but if you mean XI R2 ( version 11.5 ) then it still is.
It's not completely clear which Business View you are referring to? BOE has a Business View Designer so not sure if this is just a naming problem or not? If you are referring to the BOE Business View Designer then the above is true. If your reference is about some other BV designer or data source then you need to clarify.
Contact our Sales department for pricing and availability.
Thank you
Don
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