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POWindow not being redrawn when changing Opacity
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  1. POWindow not being redrawn when changing Opacity
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    copied!<p>I have been trying to create a notification window, but I'm struggling to figure out why this opacity shift is not happening when I run it. Instead the window will hold for a second then close without any visible changes. All my other attempts via other methods have failed too, so it must be some property I am missing. Thanks for any help!</p> <pre><code> public void RunForm(string error, MessageBoxIcon icon, int duration) { lblMessage.Text = error; Icon i = ToSystemIcon(icon); if (i != null) { BitmapSource bs = System.Windows.Interop.Imaging.CreateBitmapSourceFromHIcon(i.Handle, Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions()); imgIcon.Source = bs; } this.WindowStartupLocation = WindowStartupLocation.Manual; this.Show(); this.Left = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Right - this.RestoreBounds.Width - 20; this.Top = System.Windows.Forms.Screen.PrimaryScreen.WorkingArea.Bottom - this.RestoreBounds.Height - 20; while (this.Opacity &gt; 0) { this.Opacity -= 0.05; Thread.Sleep(50); } this.Close(); } &lt;Window Width="225" Height="140" VerticalContentAlignment="Center" HorizontalAlignment="Center" ShowActivated="True" ShowInTaskbar="False" ResizeMode="NoResize" Grid.IsSharedSizeScope="False" SizeToContent="Height" WindowStyle="None" BorderBrush="Gray" BorderThickness="1.5" Background="White" Topmost="True" AllowsTransparency="True" Opacity="1"&gt; &lt;Grid Height="Auto" Name="grdNotificationBox" &gt; &lt;Image Margin="12,12,0,0" Name="imgIcon" Stretch="Fill" HorizontalAlignment="Left" Width="32" Height="29" VerticalAlignment="Top" /&gt; &lt;TextBlock Name="lblMessage" TextWrapping="Wrap" Margin="57,11,17,11"&gt;&lt;/TextBlock&gt; &lt;/Grid&gt; </code></pre> <p></p>
 

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