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How to get all enabled keyboard in xamarin.forms with C#

Good day,
in android phone -> virtual keyboard, system list all the enabled keyboards in this page, how can i get all enabled keyboards type with C# in my Xamarin.forms APP?
Thanks!
Roll

In Android, you could use InputDevice.
InputDevice: https://developer.android.com/reference/android/view/InputDevice
You could try the code below:
int[] devicesIds = InputDevice.GetDeviceIds();
foreach (var item in devicesIds)
{
//Check the device you want
InputDevice device = InputDevice.GetDevice(item);
//device.getName must to have virtual
var s = device.Name;
var b = device.KeyboardType;
}
You could use DependencyService to call this in Xamarin.Forms.
DependencyService: https://learn.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/dependency-service/introduction

thanks your reply, i try the way you suggested, but the returned value was not i want...
i found another post here, use that way and finally get the things i want,
here is my code to share:
InputMethodManager manager = (InputMethodManager)context.GetSystemService(Context.InputMethodService);
IList<InputMethodInfo> mInputMethodProperties = manager.EnabledInputMethodList;
IEnumerator<InputMethodInfo> imi = mInputMethodProperties.GetEnumerator();
while (imi.MoveNext())
{
InputMethodInfo inputInfo = imi.Current;
var iN = inputInfo.ServiceName;
}
Best Regards & thanks
Roll

How Can Get CallbackData in current when InlineKeyboardCallbackButton clicked in telegram Bot in C#

How can I get InlineKeyboardCallbackButton clicked in telegram bot?
Here is my code : I Edited The Code
public async System.Threading.Tasks.Task<ActionResult> GetMsgAsync()
{
var req = Request.InputStream;
var responsString = new StreamReader(req).ReadToEnd();
var update = JsonConvert.DeserializeObject<Update>(responsString);
var message = update.Message;
var chat = message.Chat;
InlineKeyboardMarkup categoryInlineMarkup = new
InlineKeyboardMarkup(
new InlineKeyboardButton[][]
{
new InlineKeyboardButton[]
{
new InlineKeyboardCallbackButton("button1","callbackData")
}
}
);
await api.SendTextMessageAsync(update.Message.Chat.Id, "Please click the button", replyMarkup: categoryInlineMarkup);
if (update.Type == Telegram.Bot.Types.Enums.UpdateType.MessageUpdate)
{
// all codes just run in this block
}
if (update.Type == Telegram.Bot.Types.Enums.UpdateType.CallbackQueryUpdate)
{
// I can't get clicked button here
if (update.CallbackQuery.Data.Contains("callbackData"))
{
await api.AnswerCallbackQueryAsync(update.CallbackQuery.Id, update.CallbackQuery.Data);
}
}
}
How can I get this button clicked also in webhook method, not in console program?

Finally i find out the answer, the problem is this line of code :
var message = update.Message;
this line of code is the main problem because this line is not in try
catch block and i can't understand which line is the problem .
After this Problem, i have a suggestion for you
You can debugging your telegram bot in your personal computer without uploading any code on any host, for this purpose You can run 3 below steps ::
1- Accessing an IIS Express site from a remote computer
2- Download NGROK
3- after download ngrok you can forward telegram webhook requests to your personal computer .

Is there any english language grammar set in Speech Recognition in Windows Phone 8

I am developing Windows Phone 8 app using c#/xaml.
I am basically trying to convert voice to text and store it in textbox.
The voice input will be normal english.
But for that I need to create whole grammar file i guess.
Is there anything ready made or am i missing something.
Please help
private async void record_Click(object sender, EventArgs e)
{
// Begin recognition using the default grammar and store the result.
SpeechRecognitionUIResult recoResult = await recoWithUI.RecognizeWithUIAsync();
recoWithUI.Recognizer.Grammars.AddGrammarFromPredefinedType("message", SpeechPredefinedGrammar.Dictation);
await this.recoWithUI.Recognizer.PreloadGrammarsAsync();
// Check that a result was obtained
if (recoResult.RecognitionResult != null)
{
// Determine if the user wants to save the note.
var result = MessageBox.Show(string.Format("Heard you say \"{0}\" Save?", recoResult.RecognitionResult.Text), "Confirmation", MessageBoxButton.OKCancel);
// Save the result to the Azure Mobile Service DB if the user is satisfied.
if (result == MessageBoxResult.OK)
{
voicetext.Text = recoResult.RecognitionResult.Text;
}
}
}

If you don't load any grammars into the recognizer, you get the predefined short message dictation grammar.
// Load the pre-defined dictation grammar by default
// and start recognition.
SpeechRecognitionUIResult recoResult = await recoWithUI.RecognizeWithUIAsync();
// Do something with the recognition result
MessageBox.Show(string.Format("You said {0}.", recoResult.RecognitionResult.Text));

Well, I don't know exactly what you are searching, but maybe this helps you: http://msicc.cloudapp.net/?p=3787

How can I use google text to speech api in windows form?

I want to use google text to speech in my windows form application, it will read a label. I added System.Speech reference. How can it read a label with a button click event?
http://translate.google.com/translate_tts?q=testing+google+speech This is the google text to speech api, or how can I use microsoft's native text to speech?

UPDATE Google's TTS API is no longer publically available. The notes at the bottom about Microsoft's TTS are still relevant and provide equivalent functionality.
You can use Google's TTS API from your WinForm application by playing the response using a variation of this question's answer (it took me a while but I have a real solution):
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
this.FormClosing += (sender, e) =>
{
if (waiting)
stop.Set();
};
}
private void ButtonClick(object sender, EventArgs e)
{
var clicked = sender as Button;
var relatedLabel = this.Controls.Find(clicked.Tag.ToString(), true).FirstOrDefault() as Label;
if (relatedLabel == null)
return;
var playThread = new Thread(() => PlayMp3FromUrl("http://translate.google.com/translate_tts?q=" + HttpUtility.UrlEncode(relatedLabel.Text)));
playThread.IsBackground = true;
playThread.Start();
}
bool waiting = false;
AutoResetEvent stop = new AutoResetEvent(false);
public void PlayMp3FromUrl(string url)
{
using (Stream ms = new MemoryStream())
{
using (Stream stream = WebRequest.Create(url)
.GetResponse().GetResponseStream())
{
byte[] buffer = new byte[32768];
int read;
while ((read = stream.Read(buffer, 0, buffer.Length)) > 0)
{
ms.Write(buffer, 0, read);
}
}
ms.Position = 0;
using (WaveStream blockAlignedStream =
new BlockAlignReductionStream(
WaveFormatConversionStream.CreatePcmStream(
new Mp3FileReader(ms))))
{
using (WaveOut waveOut = new WaveOut(WaveCallbackInfo.FunctionCallback()))
{
waveOut.Init(blockAlignedStream);
waveOut.PlaybackStopped += (sender, e) =>
{
waveOut.Stop();
};
waveOut.Play();
waiting = true;
stop.WaitOne(10000);
waiting = false;
}
}
}
}
}
NOTE: The above code requires NAudio to work (free/open source) and using statements for System.Web, System.Threading, and NAudio.Wave.
My Form1 has 2 controls on it:
A Label named label1
A Button named button1 with a Tag of label1 (used to bind the button to its label)
The above code can be simplified slightly if a you have different events for each button/label combination using something like (untested):
private void ButtonClick(object sender, EventArgs e)
{
var clicked = sender as Button;
var playThread = new Thread(() => PlayMp3FromUrl("http://translate.google.com/translate_tts?q=" + HttpUtility.UrlEncode(label1.Text)));
playThread.IsBackground = true;
playThread.Start();
}
There are problems with this solution though (this list is probably not complete; I'm sure comments and real world usage will find others):
Notice the stop.WaitOne(10000); in the first code snippet. The 10000 represents a maximum of 10 seconds of audio to be played so it will need to be tweaked if your label takes longer than that to read. This is necessary because the current version of NAudio (v1.5.4.0) seems to have a problem determining when the stream is done playing. It may be fixed in a later version or perhaps there is a workaround that I didn't take the time to find. One temporary workaround is to use a ParameterizedThreadStart that would take the timeout as a parameter to the thread. This would allow variable timeouts but would not technically fix the problem.
More importantly, the Google TTS API is unofficial (meaning not to be consumed by non-Google applications) it is subject to change without notification at any time. If you need something that will work in a commercial environment I'd suggest either the MS TTS solution (as your question suggests) or one of the many commercial alternatives. None of which tend to be even this simple though.
To answer the other side of your question:
The System.Speech.Synthesis.SpeechSynthesizer class is much easier to use and you can count on it being available reliably (where with the Google API, it could be gone tomorrow).
It is really as easy as including a reference to the System.Speech reference and:
public void SaySomething(string somethingToSay)
{
var synth = new System.Speech.Synthesis.SpeechSynthesizer();
synth.SpeakAsync(somethingToSay);
}
This just works.
Trying to use the Google TTS API was a fun experiment but I'd be hard pressed to suggest it for production use, and if you don't want to pay for a commercial alternative, Microsoft's solution is about as good as it gets.

I know this question is a bit out of date but recently Google published Google Cloud Text To Speech API.
.NET Client version of Google.Cloud.TextToSpeech can be found here:
https://github.com/jhabjan/Google.Cloud.TextToSpeech.V1
Here is short example how to use the client:
GoogleCredential credentials =
GoogleCredential.FromFile(Path.Combine(Program.AppPath, "jhabjan-test-47a56894d458.json"));
TextToSpeechClient client = TextToSpeechClient.Create(credentials);
SynthesizeSpeechResponse response = client.SynthesizeSpeech(
new SynthesisInput()
{
Text = "Google Cloud Text-to-Speech enables developers to synthesize natural-sounding speech with 32 voices"
},
new VoiceSelectionParams()
{
LanguageCode = "en-US",
Name = "en-US-Wavenet-C"
},
new AudioConfig()
{
AudioEncoding = AudioEncoding.Mp3
}
);
string speechFile = Path.Combine(Directory.GetCurrentDirectory(), "sample.mp3");
File.WriteAllBytes(speechFile, response.AudioContent);

Taking input from a joystick with C# .NET

I searched around on Google for this, but the only things I came up with were outdated and did not work.
Does anyone have any information on how to get joystick data using C# .NET?

Since this was the top hit I got on google while researching joystick / gamepad input in C#, I thought I should post a response for others to see.
The easiest way I found was to use SharpDX and DirectInput. You can install it via NuGet (SharpDX.DirectInput)
After that, it's simply a matter of calling a few methods:
Sample code from SharpDX
static void Main()
{
// Initialize DirectInput
var directInput = new DirectInput();
// Find a Joystick Guid
var joystickGuid = Guid.Empty;
foreach (var deviceInstance in directInput.GetDevices(DeviceType.Gamepad,
DeviceEnumerationFlags.AllDevices))
joystickGuid = deviceInstance.InstanceGuid;
// If Gamepad not found, look for a Joystick
if (joystickGuid == Guid.Empty)
foreach (var deviceInstance in directInput.GetDevices(DeviceType.Joystick,
DeviceEnumerationFlags.AllDevices))
joystickGuid = deviceInstance.InstanceGuid;
// If Joystick not found, throws an error
if (joystickGuid == Guid.Empty)
{
Console.WriteLine("No joystick/Gamepad found.");
Console.ReadKey();
Environment.Exit(1);
}
// Instantiate the joystick
var joystick = new Joystick(directInput, joystickGuid);
Console.WriteLine("Found Joystick/Gamepad with GUID: {0}", joystickGuid);
// Query all suported ForceFeedback effects
var allEffects = joystick.GetEffects();
foreach (var effectInfo in allEffects)
Console.WriteLine("Effect available {0}", effectInfo.Name);
// Set BufferSize in order to use buffered data.
joystick.Properties.BufferSize = 128;
// Acquire the joystick
joystick.Acquire();
// Poll events from joystick
while (true)
{
joystick.Poll();
var datas = joystick.GetBufferedData();
foreach (var state in datas)
Console.WriteLine(state);
}
}
I hope this helps.
I even got this to work with a DualShock3 and the MotioninJoy drivers.

One: use SlimDX.
Two: it looks something like this (where GamepadDevice is my own wrapper, and the code is slimmed down to just the relevant parts).
Find the joystick / pad GUIDs:
public virtual IList<GamepadDevice> Available()
{
IList<GamepadDevice> result = new List<GamepadDevice>();
DirectInput dinput = new DirectInput();
foreach (DeviceInstance di in dinput.GetDevices(DeviceClass.GameController, DeviceEnumerationFlags.AttachedOnly))
{
GamepadDevice dev = new GamepadDevice();
dev.Guid = di.InstanceGuid;
dev.Name = di.InstanceName;
result.Add(dev);
}
return result;
}
Once the user has selected from the list, acquire the gamepad:
private void acquire(System.Windows.Forms.Form parent)
{
DirectInput dinput = new DirectInput();
pad = new Joystick(dinput, this.Device.Guid);
foreach (DeviceObjectInstance doi in pad.GetObjects(ObjectDeviceType.Axis))
{
pad.GetObjectPropertiesById((int)doi.ObjectType).SetRange(-5000, 5000);
}
pad.Properties.AxisMode = DeviceAxisMode.Absolute;
pad.SetCooperativeLevel(parent, (CooperativeLevel.Nonexclusive | CooperativeLevel.Background));
pad.Acquire();
}
Polling the pad looks like this:
JoystickState state = new JoystickState();
if (pad.Poll().IsFailure)
{
result.Disconnect = true;
return result;
}
if (pad.GetCurrentState(ref state).IsFailure)
{
result.Disconnect = true;
return result;
}
result.X = state.X / 5000.0f;
result.Y = state.Y / 5000.0f;
int ispressed = 0;
bool[] buttons = state.GetButtons();

The bad news is that Microsoft seems to stop supporting their NET libraries for DirectX and focus on XNA instead. I don't work in GameDev so I don't need to use XNA but you may try it if you developing computer games. The good news is that there are other approaches. One is SlimDX the new framework to help you to wok with DirectX from C#. The other way is to directly add references of "Microsoft.DirectX.dll" and "Microsoft.DirectX.DirectInput.dll" to your project. you can find them "..\Windows\Microsoft.NET\DirectX for Managed Code\". if you you are going to use last approach here is a link to codeproject where you can read how to work with a joystick.
EDIT:
If your application is based on NET version newer then 2.0 the application may hang on. To fix this problem change config file and add this:
<startup useLegacyV2RuntimeActivationPolicy="true">

Google led me here and while not a requirement of this question, OpenTK is a good option for Windows and Linux (under mono) support.
From the OpenTK docs, this code works on Raspberry Pi + Raspbian + Mono 3.12.0:
for (int i = 0; i < 4; i++)
{
var state = Joystick.GetState(i);
if (state.IsConnected)
{
float x = state.GetAxis(JoystickAxis.Axis0);
float y = state.GetAxis(JoystickAxis.Axis1);
// Print the current state of the joystick
Console.WriteLine(state);
}
}

This question is old, but it seems to be active even to this day, so I'm posting anyway.
If you need to get input from XInput only, take a look at XInputium. This is a .NET library that is specialized in XInput controllers. It is pretty straightforward, and has many code samples you can look at.