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| using System; | |
| using System.Windows; | |
| using System.Windows.Controls; | |
| using System.Windows.Data; | |
| using System.Windows.Documents; | |
| using System.Windows.Media; | |
| using System.Windows.Media.Imaging; | |
| using System.Windows.Shapes; | |
| using System.Windows.Annotations; | |
| using System.Windows.Input; | |
| namespace SDKSamples | |
| { | |
| /// <summary> | |
| /// Interaction logic for Window1.xaml | |
| /// </summary> | |
| public partial class Window1 : Window | |
| { | |
| public Window1() | |
| { | |
| InitializeComponent(); | |
| } | |
| //<SnippetKeyboardSampleGotFocus> | |
| private void TextBoxGotKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e) | |
| { | |
| TextBox source = e.Source as TextBox; | |
| if (source != null) | |
| { | |
| // Change the TextBox color when it obtains focus. | |
| source.Background = Brushes.LightBlue; | |
| // Clear the TextBox. | |
| source.Clear(); | |
| } | |
| } | |
| //</SnippetKeyboardSampleGotFocus> | |
| //<SnippetKeyboardSampleLostFocus> | |
| private void TextBoxLostKeyboardFocus(object sender, KeyboardFocusChangedEventArgs e) | |
| { | |
| TextBox source = e.Source as TextBox; | |
| if (source != null) | |
| { | |
| // Change the TextBox color when it loses focus. | |
| source.Background = Brushes.White; | |
| // Set the hit counter back to zero and updates the display. | |
| this.ResetCounter(); | |
| } | |
| } | |
| //</SnippetKeyboardSampleLostFocus> | |
| public void ResetCounter() | |
| { | |
| numberOfHits = 0; | |
| lblNumberOfTargetHits.Content = numberOfHits; | |
| } | |
| //<SnippetKeyboardSampleKeyConverter> | |
| // Compares the key which was pressed with a target key. | |
| // If they are the same, updates a label which keeps track | |
| // of the number of times the target key has been pressed. | |
| private void SourceTextKeyDown(object sender, KeyEventArgs e) | |
| { | |
| // The key converter. | |
| KeyConverter converter = new KeyConverter(); | |
| Key target = Key.None; | |
| // Verifying there is only one character in the string. | |
| if (txtTargetKey.Text.Length == 1) | |
| { | |
| // Converting the string to a Key. | |
| target = (Key)converter.ConvertFromString(txtTargetKey.Text); | |
| } | |
| // If the pressed key is equal to the target key. | |
| if(e.Key == target) | |
| { | |
| // Incrementing the number of hits, and updating | |
| // the label which displays the number of hits. | |
| numberOfHits++; | |
| lblNumberOfTargetHits.Content = numberOfHits; | |
| } | |
| } | |
| //</SnippetKeyboardSampleKeyConverter> | |
| int numberOfHits = 0; | |
| } | |
| } |