private async void BrightnessItem_OnClick(object sender, RoutedEventArgs e)
{
PixelManipulation manipulation = new PixelManipulation("Podaj wartość do jasności:");
var result = await manipulation.ShowAsync();
if (result == ContentDialogResult.Primary)
{
DrawingCanvas.Background.AdjustBrightness((float)manipulation.PixelManipulationValue);
}
}
private async void MultiplyValueItem_OnClick(object sender, RoutedEventArgs e)
{
PixelManipulation manipulation = new PixelManipulation("Podaj wartość do pomnożenia:");
var result = await manipulation.ShowAsync();
if (result == ContentDialogResult.Primary)
{
DrawingCanvas.Background.MultiplyPixelByValue(manipulation.PixelManipulationValue);
}
}