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[英]Wcf basicHttpBinding not working in Windows 8.1 app store
[英]Working with MIDI in Windows Store App (Win 8.1)
我的目標是在Windows應用商店應用中接收MIDI消息。 Microsoft提供了一個名為Microsoft.WindowsPreview.MidiRT
的API(作為nuget包)。
我設法得到一個midi端口,但是沒有出現MessageReceived
事件,雖然我按下我的MIDI鍵盤上的鍵,其他MIDI程序顯示我收到這些消息。
這是我的代碼:
public sealed partial class MainPage : Page
{
private MidiInPort port;
public MainPage()
{
this.InitializeComponent();
DeviceWatcher watcher = DeviceInformation.CreateWatcher();
watcher.Updated += watcher_Updated;
watcher.Start();
}
protected override void OnNavigatingFrom(NavigatingCancelEventArgs e)
{
base.OnNavigatingFrom(e);
port.Dispose();
}
async void watcher_Updated(DeviceWatcher sender, DeviceInformationUpdate args)
{
DeviceInformationCollection deviceCollection = await DeviceInformation.FindAllAsync(MidiInPort.GetDeviceSelector());
foreach (var item in deviceCollection)
{
Debug.WriteLine(item.Name);
if (port == null)
{
port = await MidiInPort.FromIdAsync(item.Id);
port.MessageReceived += port_MessageReceived;
}
}
}
void port_MessageReceived(MidiInPort sender, MidiMessageReceivedEventArgs args)
{
Debug.WriteLine(args.Message.Type);
}
}
有任何想法嗎?
可能相關:您的設備觀察程序代碼未遵循正常模式。 這是你需要做的:
DeviceWatcher midiWatcher;
void MonitorMidiChanges()
{
if (midiWatcher != null)
return;
var selector = MidiInPort.GetDeviceSelector();
midiWatcher = DeviceInformation.CreateWatcher(selector);
midiWatcher.Added += (s, a) => Debug.WriteLine("Midi Port named '{0}' with Id {1} was added", a.Name, a.Id);
midiWatcher.Updated += (s, a) => Debug.WriteLine("Midi Port with Id {1} was updated", a.Id);
midiWatcher.Removed += (s, a) => Debug.WriteLine("Midi Port with Id {1} was removed", a.Id);
midiWatcher.EnumerationCompleted += (s, a) => Debug.WriteLine("Initial enumeration complete; watching for changes...");
midiWatcher.Start();
}
我設法讓它發揮作用。 我已經將平台改為x64,現在它可以工作(我曾經為x86構建它)。 雖然存在問題(它甚至更大):我想將它與Unity3d集成,但Unity3d不允許構建x64 windows應用程序,另一方面x86 MIDI構建在x64機器上不起作用。
添加:
雖然這個API取決於你的架構,但據報道新的Windows 10 api沒有,所以如果你的目標是Win10,它應該更簡單。
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