public virtual Theme?GenerateRuntimeThemeFromWindowsSettings(string baseColor, bool isHighContrast, IEnumerable <LibraryThemeProvider> libraryThemeProviders)
{
var windowsAccentColor = WindowsThemeHelper.GetWindowsAccentColor();
if (windowsAccentColor is null)
{
return(null);
}
var accentColor = windowsAccentColor.Value;
return(this.GenerateRuntimeTheme(baseColor, accentColor, isHighContrast, libraryThemeProviders));
}
public static void UpdateWindowEffect(IntPtr windowHandle, bool isWindowActive = false)
{
var isDarkTheme = WindowsThemeHelper.AppsUseLightTheme() == false;
// {
// var wtaOptions = new WTA_OPTIONS
// {
// dwFlags = WTNCA.NODRAWCAPTION | WTNCA.NODRAWICON | WTNCA.NOSYSMENU | WTNCA.NOMIRRORHELP
// };
// wtaOptions.dwMask = wtaOptions.dwFlags;
// NativeMethods.SetWindowThemeAttribute(windowHandle, WINDOWTHEMEATTRIBUTETYPE.WTA_NONCLIENT, ref wtaOptions, (uint)Marshal.SizeOf(typeof(WTA_OPTIONS)));
// }
if (OSVersionHelper.IsWindows11_OrGreater)
{
EnableMicaEffect(windowHandle, isDarkTheme);
}
else
{
SetAccentPolicy(windowHandle, isWindowActive, isDarkTheme);
}
}
public void SyncTheme(ThemeSyncMode?syncMode)
{
try
{
var syncModeToUse = syncMode ?? this.themeSyncMode;
if (syncModeToUse == ThemeSyncMode.DoNotSync)
{
return;
}
if (Application.Current is null)
{
return;
}
var detectedTheme = this.DetectTheme();
string?baseColor = null;
if (syncModeToUse.HasFlag(ThemeSyncMode.SyncWithAppMode))
{
baseColor = WindowsThemeHelper.GetWindowsBaseColor();
}
else
{
baseColor ??= detectedTheme?.BaseColorScheme ?? BaseColorLight;
}
string?accentColor;
if (syncModeToUse.HasFlag(ThemeSyncMode.SyncWithAccent))
{
accentColor = WindowsThemeHelper.GetWindowsAccentColor()?.ToString() ?? detectedTheme?.ColorScheme;
}
else
{
// If there was no detected Theme just use the windows accent color.
accentColor = detectedTheme?.ColorScheme ?? WindowsThemeHelper.GetWindowsAccentColor()?.ToString();
}
if (accentColor is null)
{
throw new Exception("Accent color could not be detected.");
}
var isHighContrast = syncModeToUse.HasFlag(ThemeSyncMode.SyncWithHighContrast) &&
WindowsThemeHelper.IsHighContrastEnabled();
// Check if we previously generated a theme matching the desired settings
var theme = this.GetTheme(baseColor, accentColor, isHighContrast)
?? RuntimeThemeGenerator.Current.GenerateRuntimeThemeFromWindowsSettings(baseColor, isHighContrast, this.libraryThemeProvidersInternal);
// Only change the theme if it's not the current already
if (theme is not null &&
theme != detectedTheme)
{
this.ChangeTheme(Application.Current, theme);
}
}
finally
{
this.isSyncScheduled = false;
}
}
