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POKeyDown Event on a C# WPF Window Not Working
 

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    <p>I'm trying to receive key strokes in a Window (Not a Form). I receive event, until a button is pressed. After that no matter what I do, the key down event doesn't fire anymore. Is there any solution? I have searched for it, seems like every one is suggesting a solution using</p> <pre><code>this.KeyPreview = true; </code></pre> <p>but this can't work here, as Window doesn't have such an attribute. Helps much appreciated. I have already set all the children Focusable to False, and Window is set to be focusable. But this hasn't helped.</p> <p>The XAML is</p> <pre><code>&lt;Window x:Class="WpfApplication1.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="463" Width="726" AllowsTransparency="False" PreviewKeyDown="Window_PreviewKeyDown" KeyDown="Window_KeyDown_1" WindowStartupLocation="CenterScreen" Focusable="True"&gt; &lt;Window.Background&gt; &lt;RadialGradientBrush&gt; &lt;GradientStop Color="#FF3EB5FF" Offset="1" /&gt; &lt;GradientStop Color="White" Offset="0" /&gt; &lt;/RadialGradientBrush&gt; &lt;/Window.Background&gt; &lt;Grid Name="grid1"&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="434*" /&gt; &lt;ColumnDefinition Width="270*" /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Grid Margin="10,10,0,12" Name="EquiGrid" Focusable="False"&gt; &lt;Grid.ColumnDefinitions&gt; &lt;ColumnDefinition Width="2*" /&gt; &lt;ColumnDefinition Width="198*" /&gt; &lt;/Grid.ColumnDefinitions&gt; &lt;Image Grid.ColumnSpan="2" Name="EquiImage" Stretch="Uniform" Margin="0,0,0,6" /&gt; &lt;Grid Grid.Column="1" Height="100" HorizontalAlignment="Left" Margin="489,90,0,0" Name="grid2" VerticalAlignment="Top" Width="200" /&gt; &lt;/Grid&gt; &lt;Label Content="Label" Height="28" Margin="14,12,12,0" Name="longLabel" VerticalAlignment="Top" Grid.Column="1" OpacityMask="White" BorderBrush="Red" Focusable="False"&gt; &lt;Label.Background&gt; &lt;LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"&gt; &lt;GradientStop Color="White" Offset="0.025" /&gt; &lt;GradientStop Color="#FFDBDBDB" Offset="1" /&gt; &lt;/LinearGradientBrush&gt; &lt;/Label.Background&gt; &lt;/Label&gt; &lt;Label Content="Label" Height="28" Margin="14,46,12,0" Name="latLabel" VerticalAlignment="Top" Grid.Column="1" Focusable="False"&gt; &lt;Label.Background&gt; &lt;LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"&gt; &lt;GradientStop Color="White" Offset="0.025" /&gt; &lt;GradientStop Color="#FFDBDBDB" Offset="1" /&gt; &lt;/LinearGradientBrush&gt; &lt;/Label.Background&gt; &lt;/Label&gt; &lt;TextBlock Margin="14,80,12,54" Name="descriptionText" Padding="10" Text="" Grid.Column="1" Focusable="False"&gt;&lt;TextBlock.Background&gt;&lt;LinearGradientBrush EndPoint="0.5,1" StartPoint="0.5,0"&gt;&lt;GradientStop Color="White" Offset="0.025" /&gt;&lt;GradientStop Color="#FFDBDBDB" Offset="1" /&gt;&lt;/LinearGradientBrush&gt;&lt;/TextBlock.Background&gt;&lt;/TextBlock&gt; &lt;Button Content="Load Image" Grid.Column="1" Margin="14,0,0,12" Name="button1" Height="36" VerticalAlignment="Bottom" HorizontalAlignment="Left" Width="124" Click="button1_Click" Focusable="False" /&gt; &lt;Button Content="Load XML" Grid.Column="1" Margin="0,0,12,12" Name="button2" Height="36" VerticalAlignment="Bottom" HorizontalAlignment="Right" Width="114" Click="button2_Click" Focusable="False" /&gt; &lt;/Grid&gt; &lt;/Window&gt; </code></pre> <p>and the handler:</p> <pre><code> private void Window_KeyDown_1(object sender, System.Windows.Input.KeyEventArgs e) { Console.WriteLine("k"); } </code></pre> <p>I have also found out that the problem is in the focus. The children, although set to be not focusable, steal the focus on the window and stop the event firing.</p>
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    1. USArash Kazemi
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    1. COu mean key strokes outside your application?
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    2. CONo, inside it. It seems to be a pretty easy thing to do! But doesn't work.
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    3. COok, can you put some code? and which key is it?
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      1. USPresleyDias
 

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