private void SetNativeTheme(SafeThemeFileHandle newTheme)
{
var oldTheme = theme;
if (newTheme != null && !newTheme.IsInvalid && !newTheme.IsClosed)
{
UxThemeExNativeMethods.UxOverrideTheme(newTheme).ThrowIfFailed();
UxThemeExNativeMethods.UxHook().ThrowIfFailed();
theme = newTheme;
}
else
{
theme = null;
UxThemeExNativeMethods.UxUnhook().ThrowIfFailed();
UxThemeExNativeMethods.UxOverrideTheme(SafeThemeFileHandle.Zero).ThrowIfFailed();
}
oldTheme?.Dispose();
}