Keyboard keys Capturing

Question

I`m developing this application that need to read every key stroke while the application is focused.

I can read all keys except for 3 keys: Space bar, Enter and backspace.

This is a code snippet form my project:

XAML File:

<TextBox Height="108" HorizontalAlignment="Left" Margin="12,12,0,0" Name="textBox1" VerticalAlignment="Top" Width="354" AcceptsReturn="True" AcceptsTab="True" KeyDown="textBox1_KeyDown" IsReadOnly="False" IsEnabled="True" TextWrapping="Wrap" VerticalScrollBarVisibility="Auto" />

CS File:

private void textBox1_KeyDown(object sender, KeyEventArgs e)
{
    if (e.Key == Key.Return || e.Key == Key.Space)
        MessageBox.Show("" + e.Key);
}

score 2 · Accepted Answer · answered Apr 16 '11 at 16:40

Instead of KeyDown use PreviewKeyDown and your done -

<TextBox Height="108" HorizontalAlignment="Left" Margin="12,12,0,0" Name="textBox1" VerticalAlignment="Top" Width="354" AcceptsReturn="True" AcceptsTab="True" PreviewKeyDown="textBox1_KeyDown" IsReadOnly="False" IsEnabled="True" TextWrapping="Wrap" VerticalScrollBarVisibility="Auto" />

score 0 · Answer 2 · edited May 23 '17 at 10:33

0

See this Link WPF: OnKeyDown() not being called for space key in control derived from WPF TextBox.

edited May 23 '17 at 10:33

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answered Apr 16 '11 at 16:38

Nighil

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Keyboard keys Capturing

2 Answers2