private async Task <bool> ApplyEffectAsync(StorageFile file)
{
if (CurrentSelectedEffect == null && CurrentSelectedEffect.Effect == null)
{
return(false);
}
// Open a stream for the selected file.
IRandomAccessStream fileStream = await file.OpenAsync(FileAccessMode.Read);
string errorMessage = null;
try
{
// Rewind stream to start.
fileStream.Seek(0);
// A cartoon effect is initialized with selected image stream as source.
var imageStream = new Lumia.Imaging.RandomAccessStreamImageSource(fileStream);
UpdateCustomEffectSource(imageStream);
((IImageConsumer)CurrentSelectedEffect.Effect).Source = imageStream;
await RenderAsync();
}
catch (Exception exception)
{
errorMessage = exception.Message;
}
if (!string.IsNullOrEmpty(errorMessage))
{
var dialog = new MessageDialog(errorMessage);
await dialog.ShowAsync();
return(false);
}
return(true);
}
private async Task<bool> ApplyEffectAsync(StorageFile file)
{
if (CurrentSelectedEffect == null && CurrentSelectedEffect.Effect == null)
{
return false;
}
// Open a stream for the selected file.
IRandomAccessStream fileStream = await file.OpenAsync(FileAccessMode.Read);
string errorMessage = null;
try
{
// Rewind stream to start.
fileStream.Seek(0);
// A cartoon effect is initialized with selected image stream as source.
var imageStream = new Lumia.Imaging.RandomAccessStreamImageSource(fileStream);
UpdateCustomEffectSource(imageStream);
((IImageConsumer)CurrentSelectedEffect.Effect).Source = imageStream;
await RenderAsync();
}
catch (Exception exception)
{
errorMessage = exception.Message;
}
if (!string.IsNullOrEmpty(errorMessage))
{
var dialog = new MessageDialog(errorMessage);
await dialog.ShowAsync();
return false;
}
return true;
}
