private async Task TakePicture(CameraMessage cameraMessage)
{
if (this.isCameraInitializing)
{
await this.SendResult(new ResultMessage(cameraMessage) { ResultId = -3, Result = "Initializing" });
return;
}
await this.dispatcher.RunAsync(
CoreDispatcherPriority.Normal,
async () =>
{
lock (this.keysInProcess)
{
this.keysInProcess["CAMERA"] = true;
}
await this.InitializeCamera();
var imageName = "photo_" + DateTime.Now.Ticks + ".jpg";
foreach (
var destination in
this.destinations.Where(destination => destination.CheckPrefix(cameraMessage.Url)))
{
imageName = destination.ParseAddressForFileName(cameraMessage.Url);
break;
}
StorageFile stream = null;
try
{
var timeout = DateTime.Now.AddSeconds(5);
while (!this.camera.isPreviewing && DateTime.Now < timeout)
{
await Task.Delay(250);
}
stream = await this.camera.Capture(imageName);
}
catch (Exception e)
{
await
this.SendResult(new ResultMessage(cameraMessage) { ResultId = -99, Result = e.Message });
lock (this.keysInProcess)
{
this.keysInProcess["CAMERA"] = false;
}
return;
}
// stores the image in Azure BLOB Storage
var memStream = new MemoryStream();
var fileStream = await stream.OpenStreamForReadAsync();
await fileStream.CopyToAsync(memStream);
if (!await this.SendToDestinations(cameraMessage, memStream, KnownFolders.PicturesLibrary))
{
await this.SendResult(new ResultMessage(cameraMessage) { Result = imageName });
}
lock (this.keysInProcess)
{
this.keysInProcess["CAMERA"] = false;
}
});
}
private async void TakePicture(CameraMessage cameraMessage)
{
if (isCameraInitializing)
{
await SendResult(new ResultMessage(cameraMessage) {ResultId = -3, Result = "Initializing"});
return;
}
await dispatcher.RunAsync(CoreDispatcherPriority.Normal, async () =>
{
lock (keysInProcess)
{
keysInProcess["CAMERA"] = true;
}
if (!isCameraInitialized)
{
isCameraInitializing = true;
await InitializeCamera();
isCameraInitializing = false;
}
var imageName = "photo_" + DateTime.Now.Ticks + ".jpg";
foreach (
var destination in destinations.Where(destination => destination.CheckPrefix(cameraMessage.Url)))
{
imageName = destination.ParseAddressForFileName(cameraMessage.Url);
break;
}
var stream = await camera.Capture(imageName);
//stores the image in Azure BLOB Storage
var memStream = new MemoryStream();
var fileStream = await stream.OpenStreamForReadAsync();
await fileStream.CopyToAsync(memStream);
if (!await SendToDestinations(cameraMessage, memStream, KnownFolders.PicturesLibrary))
{
await SendResult(new ResultMessage(cameraMessage) {Result = imageName});
}
lock (keysInProcess)
{
keysInProcess["CAMERA"] = false;
}
});
}
