private async void UpdateButton_Click(object sender, RoutedEventArgs e)
{
LineDisplayAttributes attributes = lineDisplay.GetAttributes();
if (lineDisplay.Capabilities.CanChangeBlinkRate)
{
attributes.BlinkRate = TimeSpan.FromMilliseconds(BlinkRateSlider.Value);
}
if (lineDisplay.Capabilities.IsBrightnessSupported)
{
attributes.Brightness = (int)BrightnessSlider.Value;
}
if (lineDisplay.Capabilities.CanChangeScreenSize)
{
attributes.ScreenSizeInCharacters = Helpers.GetSelectedItemTag <Size>(SupportedScreenSizesComboBox);
}
if (lineDisplay.Capabilities.CanMapCharacterSets)
{
attributes.IsCharacterSetMappingEnabled = CharacterSetMappingEnabledCheckbox.IsChecked.Value;
}
if (await lineDisplay.TryUpdateAttributesAsync(attributes))
{
rootPage.NotifyUser("Attributes updated successfully.", NotifyType.StatusMessage);
// The resulting attributes may not match our request.
// For example, the Line Display will choose the closest available blink rate.
// Update the controls to show what the Line Display actually used.
SetValuesFromLineDisplay();
}
else
{
// We probably lost our claim.
rootPage.NotifyUser("Failed to update attributes.", NotifyType.ErrorMessage);
}
}