Uploaded image for project: 'JDK'
  1. JDK
  2. JDK-8096423

[Windows] PRINTSCREEN generates KEY_RELEASED without KEY_PRESSED

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: P4
    • Resolution: Fixed
    • Affects Version/s: 8
    • Fix Version/s: 8u20
    • Component/s: javafx
    • Labels:
    • Environment:

      Windows 7 64bit
      Java 8.0b129

      Description

      Run the following and observe the events that are processed when typing various keys.
      PrintScreen appears to be unique in that it only produces a KEY_RELEASED event.

      package listviewkeytyped;

      import javafx.application.Application;
      import javafx.event.EventHandler;
      import javafx.scene.Scene;
      import javafx.scene.control.Label;
      import javafx.scene.input.KeyEvent;
      import javafx.scene.layout.StackPane;
      import javafx.stage.Stage;

      public class ListViewKeyTyped extends Application {
      private final EventHandler<? super KeyEvent> logEvent = new EventHandler<KeyEvent>() {
      @Override
      public void handle(KeyEvent t) { System.out.println("got: "+t); }
      };

      @Override
      public void start(Stage primaryStage) {
      Label label = new Label("Focus me and type...");
      label.setFocusTraversable(true);
      label.setMaxSize(300,250);
      label.addEventFilter(KeyEvent.ANY, logEvent);
      StackPane root = new StackPane();
      root.getChildren().add(label);
      Scene scene = new Scene(root, 300, 250);
      primaryStage.setTitle("KeyEvents dumped to stdout");
      primaryStage.setScene(scene);
      primaryStage.show();
      }

      public static void main(String[] args) { launch(args); }
      }

        Attachments

          Activity

            People

            • Assignee:
              anthony Anthony Petrov (Inactive)
              Reporter:
              swpalmer Scott Palmer
            • Votes:
              0 Vote for this issue
              Watchers:
              2 Start watching this issue

              Dates

              • Created:
                Updated:
                Resolved:
                Imported: