WPF之检测鼠标位置

  <Grid Margin="5">    <Grid.RowDefinitions>      <RowDefinition></RowDefinition>      <RowDefinition Height="Auto"></RowDefinition>      <RowDefinition Height="Auto"></RowDefinition>    </Grid.RowDefinitions>    <Rectangle Name="rect" MouseMove="MouseMoved" Fill="LightBlue" ></Rectangle>    <Button Grid.Row="1" Name="cmdCapture" Click="cmdCapture_Click">Capture the Mouse</Button>    <TextBlock Name="lblInfo" Grid.Row="2"></TextBlock>  </Grid>

        private void cmdCapture_Click(object sender, RoutedEventArgs e)        {           this.AddHandler(                  Mouse.LostMouseCaptureEvent,                  new RoutedEventHandler(this.LostCapture));                Mouse.Capture(rect);                cmdCapture.Content = "[ Mouse is now captured ... ]";        }        private void MouseMoved(object sender, MouseEventArgs e)        {            Point pt = e.GetPosition(this);            lblInfo.Text =                 String.Format("You are at ({0},{1}) in window coordinates",                pt.X, pt.Y);                    }        private void LostCapture(object sender, RoutedEventArgs e)        {            MessageBox.Show("Lost capture");            cmdCapture.Content = "Capture the Mouse";        }