private async void DevicePicker_DeviceSelected(DevicePicker sender, DeviceSelectedEventArgs args)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
DeviceInformation selectedDevice = args.SelectedDevice;
#if DEBUG
// The args.SelectedCastingDevice is proxied from the picker process. The picker process is
// dismissmed as soon as you break into the debugger. Creating a non-proxied version
// allows debugging since the proxied version stops working once the picker is dismissed.
selectedDevice = await DeviceInformation.CreateFromIdAsync(args.SelectedDevice.Id);
#endif
if (await DialDevice.DeviceInfoSupportsDialAsync(selectedDevice))
{
await SendDialParameter(sender, args);
}
else if (await CastingDevice.DeviceInfoSupportsCastingAsync(selectedDevice))
{
await CastingVideoToScreen(sender, args);
}
else if (ProjectionManager.ProjectionDisplayAvailable)
{
await ProjectioinViewToScreen(sender, args);
}
});
}
private async void DevicePicker_DisconnectButtonClicked(DevicePicker sender, DeviceDisconnectButtonClickedEventArgs args)
{
await Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, async() =>
{
DeviceInformation selectedDevice = args.Device;
if (await DialDevice.DeviceInfoSupportsDialAsync(selectedDevice))
{
await StopDialConnection(sender, selectedDevice);
return;
}
await StopProjection(sender, selectedDevice);
});
}
private async Task <bool> TryLaunchDialAppAsync(DeviceInformation device)
{
bool dialAppLaunchSucceeded = false;
//Update the launch arguments to include the Position
this.dial_launch_args_textbox.Text = string.Format("v={0}&t={1}&pairingCode=E4A8136D-BCD3-45F4-8E49-AE01E9A46B5F", video.Id, player.Position.Ticks);
//Try to create a DIAL device. If it doesn't succeed, the selected device does not support DIAL.
rootPage.NotifyUser(string.Format("Checking to see if device {0} supports DIAL", device.Name), NotifyType.StatusMessage);
if (await DialDevice.DeviceInfoSupportsDialAsync(device))
{
DialDevice dialDevice = null;
//Try to create a DIAL device. If it doesn't succeed, the selected device does not support DIAL.
rootPage.NotifyUser(string.Format("Attempting to resolve DIAL device for '{0}'", device.Name), NotifyType.StatusMessage);
try { dialDevice = await DialDevice.FromIdAsync(device.Id); } catch { }
if (dialDevice == null)
{
//Try to create a DIAL device. If it doesn't succeed, the selected device does not support DIAL.
rootPage.NotifyUser(string.Format("'{0}' does not support DIAL", device.Name), NotifyType.StatusMessage);
}
else
{
//Get the DialApp object for the specific application on the selected device
DialApp app = dialDevice.GetDialApp(this.dial_appname_textbox.Text);
if (app == null)
{
//Try to create a DIAL device. If it doesn't succeed, the selected device does not support DIAL.
rootPage.NotifyUser(string.Format("'{0}' cannot find app with ID '{1}'", device.Name, this.dial_appname_textbox.Text), NotifyType.StatusMessage);
}
else
{
//Get the current application state
DialAppStateDetails stateDetails = await app.GetAppStateAsync();
if (stateDetails.State == DialAppState.NetworkFailure)
{
// In case getting the application state failed because of a network failure
rootPage.NotifyUser("Network Failure while getting application state", NotifyType.ErrorMessage);
}
else
{
rootPage.NotifyUser(string.Format("Attempting to launch '{0}'", app.AppName), NotifyType.StatusMessage);
//Launch the application on the 1st screen device
DialAppLaunchResult result = await app.RequestLaunchAsync(this.dial_launch_args_textbox.Text);
//Verify to see whether the application was launched
if (result == DialAppLaunchResult.Launched)
{
//Remember the device to which casting succeeded
activeDevice = device;
//DIAL is sessionsless but the DIAL app allows us to get the state and "disconnect".
//Disconnect in the case of DIAL is equivalenet to stopping the app.
activeCastConnectionHandler = app;
rootPage.NotifyUser(string.Format("Launched '{0}'", app.AppName), NotifyType.StatusMessage);
//This is where you will need to add you application specific communication between your 1st and 2nd screen applications
//...
dialAppLaunchSucceeded = true;
}
}
}
}
}
else
{
rootPage.NotifyUser(string.Format("'{0}' does not support DIAL", device.Name), NotifyType.StatusMessage);
}
return(dialAppLaunchSucceeded);
}