public List <SnapsImage> PickImages()
{
List <SnapsImage> result = new List <SnapsImage>();
AutoResetEvent dialogCompleteEvent = new AutoResetEvent(false);
InvokeOnUIThread(
async() =>
{
FileOpenPicker openPicker = new FileOpenPicker();
openPicker.ViewMode = PickerViewMode.Thumbnail;
openPicker.SuggestedStartLocation = PickerLocationId.PicturesLibrary;
openPicker.FileTypeFilter.Add(".jpg");
openPicker.FileTypeFilter.Add(".jpeg");
openPicker.FileTypeFilter.Add(".png");
var files = await openPicker.PickMultipleFilesAsync();
foreach (StorageFile file in files)
{
SnapsImage image = new SnapsImage(file);
result.Add(image);
}
dialogCompleteEvent.Set();
}
);
dialogCompleteEvent.WaitOne();
return(result);
}
public bool DisplaySnapsImage(SnapsImage image)
{
return(DoDisplaySnapsImage(image, graphicsCanvas.DisplayImage));
}
public bool DoDisplaySnapsImage(SnapsImage image, Image graphicsImage)
{
return(DoDisplayFileImage(image.File, graphicsImage));
}