Event Handlers of a mouse click

In the simplest way possible please tell me how to do an event handler for a mouse click.
private int clickCounter = 0;
private void MyCanvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
if (Device1RB.IsChecked == true)
clickCounter++;
return;
else if (RemoveRB.IsChecked == true)
clickCounter--;
return;
else
return;
private void Switch_class()
switch (clickCounter)
case 1:
//code here
break;
case 2:
//code here
break;
case 3:
//code here
break;
case 4:
//code here
break;
case 5:
//code here
break;
default:
//code here??
break;
This is what I have and I apparently need an event handler for the mouse click. Also if there is an easier way to do what I want then please point me in the right direction.

I still can't figure out why its not working.
private int clickCounter = 0;
private void MyCanvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
if (Device1RB.IsChecked == true)
clickCounter++;
return;
else if (RemoveRB.IsChecked == true)
clickCounter--;
return;
else
return;
private void Switch_class()
switch (clickCounter)
case 1:
pic_1.Visibility = System.Windows.Visibility.Visible;
break;
case 2:
pic_2.Visibility = System.Windows.Visibility.Visible;
break;
case 3:
pic_3.Visibility = System.Windows.Visibility.Visible;
break;
case 4:
pic_4.Visibility = System.Windows.Visibility.Visible;
break;
case 5:
pic_5.Visibility = System.Windows.Visibility.Visible;
break;
default:
//code here??
break;
That's what I've got.
<Canvas x:Name="MyCanvas" HorizontalAlignment="Left" Height="391" Margin="130,20,0,0" VerticalAlignment="Top" Width="520" MouseLeftButtonDown="MyCanvas_MouseLeftButtonDown" Background="Transparent">
<Rectangle Fill="White" HorizontalAlignment="Left" Height="391" Stroke="Black" VerticalAlignment="Top" Width="520"/>
<Image HorizontalAlignment="Left" Height="34" VerticalAlignment="Top" Width="100" Source="Power.png" Visibility="Visible"/>
<Image x:Name="pic_1" Height="42" Canvas.Left="152" Canvas.Top="70" Width="44" Source="2box.png" Visibility="Hidden"/>
<Image x:Name="pic_2" Height="42" Canvas.Left="152" Canvas.Top="70" Width="44" Source="2box.png" Visibility="Hidden"/>
<Image x:Name="pic_3" Height="42" Canvas.Left="152" Canvas.Top="70" Width="44" Source="2box.png" Visibility="Hidden"/>
<Image x:Name="pic_4" Height="42" Canvas.Left="152" Canvas.Top="70" Width="44" Source="2box.png" Visibility="Hidden"/>
<Image x:Name="pic_5" Height="42" Canvas.Left="152" Canvas.Top="70" Width="44" Source="2box.png" Visibility="Hidden"/>
</Canvas>
This is the canvas...Is there something blatantly obvious that I'm missing?

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How can I (neatly) control mouse click events in a multi-dimensional array?

Hello everyone!
     I have a question regarding the use of mouse clicks events in a multi-dimensional array (or a "2D" array as we refer to them in Java and C++).
Background
     I have an array of objects each with a corresponding mouse click event. Each object is stored at a location ranging from [0][0] to [5][8] (hence a 9 x 6 grid) and has the specific column and row number associated with it as well (i.e. tile [2][4] has a row number of 2 and a column number of 4, even though it is on the third row, fifth column). Upon each mouse click, the tile that is selected is stored in a temporary array. The array is cleared if a tile is clicked that does not share a column or row value equal to, minus or plus 1 with the currently targeted tile (i.e. clicking tile [1][1] will clear the array if there aren't any tiles stored that have the row/column number
[0][0], [0][1], [0][2],
[1][0], [1][1], [1][2],
[2][0], [2][1], [2][2]
or any contiguous column/row with another tile stored in the array, meaning that the newly clicked tile only needs to be sharing a border with one of the tiles in the temp array but not necessarily with the last tile stored).
Question
     What is a clean, tidy way of programming this in AS3? Here are a couple portions of my code (although the mouse click event isn't finished/working correctly):
public function tileClick(e:MouseEvent):void
   var tile:Object = e.currentTarget;
   tileSelect.push(uint(tile.currentFrameLabel));
   selectArr.push(tile);
   if (tile.select.visible == false)
    tile.select.visible = true;
   else
    tile.select.visible = false;
   for (var i:uint = 0; i < selectArr.length; i++)
    if ((tile.rowN == selectArr[i].rowN - 1) ||
     (tile.rowN == selectArr[i].rowN) ||
     (tile.rowN == selectArr[i].rowN + 1))
     if ((tile.colN == selectArr[i].colN - 1) ||
     (tile.colN == selectArr[i].colN) ||
     (tile.colN == selectArr[i].colN + 1))
      trace("jackpot!" + i);
    else
     for (var ii:uint = 0; ii < 1; ii++)
      for (var iii:uint = 0; iii < selectArr.length; iii++)
       selectArr[iii].select.visible = false;
      selectArr = [];
      trace("Err!");

Andrei1,
     So are you saying that if I, rather than assigning a uint to the column and row number for each tile, just assigned a string to each one in the form "#_#" then I could actually just assign the "adjacent" array directly to it instead of using a generic object to hold those values? In this case, my click event would simply check the indexes, one at a time, of all tiles currently stored in my "selectArr" array against the column/row string in the currently selected tile. Am I correct so far? If I am then let's say that "selectArr" is currently holding five tile coordinates (the user has clicked on five adjacent tiles thus far) and a sixth one is being evaluated now:
Current "selectArr" values:
       1_0
       1_1, 2_1, 3_1
              2_2
New tile clicked:
       1_0
       1_1, 2_1, 3_1
              2_2
              2_3
Coordinate search:
       1_-1
0_0, 1_0, 2_0, 3_0
0_1, 1_1, 2_1, 3_1, 4_1
       1_2, 2_2, 3_2
              2_3
     Essentially what is happening here is that the new tile is checking all four coordinates/indexes belonging to each of the five tiles stored in the "selectArr" array as it tries to find a match for one of its own (which it does for the tile at coordinate 2_2). Thus the new tile at coordinate 2_3 would be marked as valid and added to the "selectArr" array as we wait for the next tile to be clicked and validated. Is this correct?

What is the recommended way to handle mouse click events for custom nodes that subclass Panes?

Hi,
I have created a custom node that is a StackPane containing a Label on top of a Polygon.
import javafx.scene.control.Label;
import javafx.scene.layout.StackPane;
import javafx.scene.paint.Color;
import javafx.scene.shape.Polygon;
public class CustomHexagon extends StackPane {
    private Polygon hexagon;
    private Label overlayText;
    public CustomHexagon( String text, double... points ) {
        this.hexagon = new Polygon( points );
        this.overlayText = new Label( text );
        overlayText.setStyle( "-fx-font-weight: bold;" );
        hexagon.setStroke( Color.GREEN );
        hexagon.setStrokeWidth( 5.0 );
        hexagon.setFill( Color.WHITE );
        this.getChildren().addAll( hexagon, overlayText );
// Lays out the node where it should be according to the points provided for the Polygon.
        this.setLayoutX( points[0] - getLayoutBounds().getMinX() );
        this.setLayoutY( points[1] - getLayoutBounds().getMinY() );
// Show the border of the StackPane.
        this.setStyle( "-fx-border-color: black; -fx-border-width: 1; -fx-border-style: dashed;");
    public String getOverlayText() {
        return overlayText.getText();
I want to display a tesselation of these custom hexagons. Because a CustomHexagon is a StackPane, not a Polygon, MouseClick events can be picked up when the mouse is clicked outside of the stroke of the hexagon but still within the StackPane (which takes up a rectangle larger than the hexagon). The following program demonstrates this.
public class Main extends Application {
    @Override
    public void start(Stage primaryStage) {
        Group root = new Group();
        CustomHexagon[] hexagons = {
            new CustomHexagon( "00", 10.0, 10.0, 30.0, 10.0, 40.0, 27.3205080756, 30.0, 44.6410161512, 10.0, 44.6410161512, 0.0, 27.3205080756 ),
            new CustomHexagon( "01", 70.0, 10.0, 90.0, 10.0, 100.0, 27.3205080756, 90.0, 44.6410161512, 70.0, 44.6410161512, 60.0, 27.3205080756 ),
            new CustomHexagon( "02", 130.0, 10.0, 150.0, 10.0, 160.0, 27.3205080756, 150.0, 44.6410161512, 130.0, 44.6410161512, 120.0, 27.3205080756 ),
            new CustomHexagon( "03", 190.0, 10.0, 210.0, 10.0, 220.0, 27.3205080756, 210.0, 44.6410161512, 190.0, 44.6410161512, 180.0, 27.3205080756 ),
            new CustomHexagon( "04", 250.0, 10.0, 270.0, 10.0, 280.0, 27.3205080756, 270.0, 44.6410161512, 250.0, 44.6410161512, 240.0, 27.3205080756 ),
            new CustomHexagon( "10", 40.0, 27.3205080756, 60.0, 27.3205080756, 70.0, 44.6410161512, 60.0, 61.961524226799995, 40.0, 61.961524226799995, 30.0, 44.6410161512 ),
            new CustomHexagon( "11", 100.0, 27.3205080756, 120.0, 27.3205080756, 130.0, 44.6410161512, 120.0, 61.961524226799995, 100.0, 61.961524226799995, 90.0, 44.6410161512 ),
            new CustomHexagon( "12", 160.0, 27.3205080756, 180.0, 27.3205080756, 190.0, 44.6410161512, 180.0, 61.961524226799995, 160.0, 61.961524226799995, 150.0, 44.6410161512 ),
            new CustomHexagon( "13", 220.0, 27.3205080756, 240.0, 27.3205080756, 250.0, 44.6410161512, 240.0, 61.961524226799995, 220.0, 61.961524226799995, 210.0, 44.6410161512 ),
            new CustomHexagon( "14", 280.0, 27.3205080756, 300.0, 27.3205080756, 310.0, 44.6410161512, 300.0, 61.961524226799995, 280.0, 61.961524226799995, 270.0, 44.6410161512 ),
            new CustomHexagon( "20", 10.0, 44.6410161512, 30.0, 44.6410161512, 40.0, 61.961524226799995, 30.0, 79.2820323024, 10.0, 79.2820323024, 0.0, 61.961524226799995 ),
            new CustomHexagon( "21", 70.0, 44.6410161512, 90.0, 44.6410161512, 100.0, 61.961524226799995, 90.0, 79.2820323024, 70.0, 79.2820323024, 60.0, 61.961524226799995 ),
            new CustomHexagon( "22", 130.0, 44.6410161512, 150.0, 44.6410161512, 160.0, 61.961524226799995, 150.0, 79.2820323024, 130.0, 79.2820323024, 120.0, 61.961524226799995 ),
            new CustomHexagon( "23", 190.0, 44.6410161512, 210.0, 44.6410161512, 220.0, 61.961524226799995, 210.0, 79.2820323024, 190.0, 79.2820323024, 180.0, 61.961524226799995 ),
            new CustomHexagon( "24", 250.0, 44.6410161512, 270.0, 44.6410161512, 280.0, 61.961524226799995, 270.0, 79.2820323024, 250.0, 79.2820323024, 240.0, 61.961524226799995 ),
            new CustomHexagon( "30", 40.0, 61.961524226799995, 60.0, 61.961524226799995, 70.0, 79.2820323024, 60.0, 96.602540378, 40.0, 96.602540378, 30.0, 79.2820323024 ),
            new CustomHexagon( "31", 100.0, 61.961524226799995, 120.0, 61.961524226799995, 130.0, 79.2820323024, 120.0, 96.602540378, 100.0, 96.602540378, 90.0, 79.2820323024 ),
            new CustomHexagon( "32", 160.0, 61.961524226799995, 180.0, 61.961524226799995, 190.0, 79.2820323024, 180.0, 96.602540378, 160.0, 96.602540378, 150.0, 79.2820323024 ),
            new CustomHexagon( "33", 220.0, 61.961524226799995, 240.0, 61.961524226799995, 250.0, 79.2820323024, 240.0, 96.602540378, 220.0, 96.602540378, 210.0, 79.2820323024 ),
            new CustomHexagon( "34", 280.0, 61.961524226799995, 300.0, 61.961524226799995, 310.0, 79.2820323024, 300.0, 96.602540378, 280.0, 96.602540378, 270.0, 79.2820323024 ),
            new CustomHexagon( "40", 10.0, 79.2820323024, 30.0, 79.2820323024, 40.0, 96.602540378, 30.0, 113.9230484536, 10.0, 113.9230484536, 0.0, 96.602540378 ),
            new CustomHexagon( "41", 70.0, 79.2820323024, 90.0, 79.2820323024, 100.0, 96.602540378, 90.0, 113.9230484536, 70.0, 113.9230484536, 60.0, 96.602540378 ),
            new CustomHexagon( "42", 130.0, 79.2820323024, 150.0, 79.2820323024, 160.0, 96.602540378, 150.0, 113.9230484536, 130.0, 113.9230484536, 120.0, 96.602540378 ),
            new CustomHexagon( "43", 190.0, 79.2820323024, 210.0, 79.2820323024, 220.0, 96.602540378, 210.0, 113.9230484536, 190.0, 113.9230484536, 180.0, 96.602540378 ),
            new CustomHexagon( "44", 250.0, 79.2820323024, 270.0, 79.2820323024, 280.0, 96.602540378, 270.0, 113.9230484536, 250.0, 113.9230484536, 240.0, 96.602540378 )
        EventHandler<MouseEvent> mouseClickedHandler = new EventHandler<MouseEvent>() {
            @Override
            public void handle(MouseEvent t) {
                CustomHexagon h = (CustomHexagon) t.getSource();
                System.out.println( h.getOverlayText() );
        for ( CustomHexagon hexagon : hexagons ) {
            hexagon.setOnMouseClicked( mouseClickedHandler );
        root.getChildren().addAll( hexagons );
        Scene scene = new Scene(root, 400, 400);
        primaryStage.setTitle("Example");
        primaryStage.setScene(scene);
        primaryStage.show();
    public static void main(String[] args) {
        launch(args);
After running this program, when one clicks within the intersection of two StackPanes (borders shown by dashed lines), the target of the mouse click event will be the StackPane on top as determined by the order in which they were added to their parent.
This is a problem because there is only a small "T" shaped area within each hexagon that when clicked will target that hexagon with an event, rather than adjacent nodes.
I would appreciate any reccomendations to solve this problem.
Thanks,
James Giller

Hello, this is an evergreen. Just call setPickOnBounds(false) on the CustomHexagon.
An issue tracking this problem is open here: https://javafx-jira.kenai.com/browse/RT-17024

Pass Mouse click events from JavaScript to Falsh Movie

Hi,
I have an interesting problem here.
i am trying to create a web page which has my
flash-presentation movie. i need to disable mouse click &
keyboard click navigation of the flash movie. The only way by which
i can navigate my slide in the flash movie should be using 2
buttons say Next & Prev that are i my web page.
when i click the Next button i should be able to go to the
next slid or the animation in the same slide like how i do in the
power Point.
Is there any way by which i can send these mouse click
events from my javascript to my flash movie or is there any other
means by which i can achieve this.
~Blackperil

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What i understood is that you want to triger a server side event (simulate onClick event of button)from a client side event (javascript confirm popup), based on the choice of user..
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Check = confirm("Do you really want to proceed?");
if (Check == true)
document.getElementById('do_proceed').click();
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Anubhav

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My code works great on IE 11 , when I have compatibility mode on,
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"Status Code: " + statusCode + "<br/>" +
"Exception Type: " + exceptionType + "<br/>" +
"Timedout: " + timedout);

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hi Guys,
Currently we have a user inactivity problem,
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Regards,
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Hi,
What I have to do is to start the application minimized in the system tray. Then the application must be listening for crtl+shift+left mouse click in any part of the desktop or an opened application, when that happens, I have to show a window asking if the user want to take a screenshot starting in the x,y point he clicked and then take the screenshot.
What I don't know how to do is to detect the mouse and keyboard events when the application is supposed to be running minimized in the system tray.
How can I do that? Can anybody give me a hint?
Thanks in advance.

It's not possible with plain Java. You will need native code for this. Take a look at JNA.

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Regards.

What about EVENT_LEFT_CLICK_UP?

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in AS
button_1.addEventListenter(MouseEvent.CLICK, someFunctionName);
or in mxml tags
<s:Button click="someHandlerName(event) />
Thanks

I will say that there is another advantage to MXML.
For instance, say that I have a static function I want to run any time you click a component and don't care about the event. I can do this in MXML:
<s:Whatever>
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Firefox 9.0.1 with Flash player not catch keyboard event with mouse click.

In a flash application, I need select mutil items using shite key and mouse click, it is not working. looks like firefox didn't pass the keyboard even alone with the click event. This happen on Window 7, IE and Chrome have no problem. only FF

i have the same problem everytime i open a website with flashcontent firefox freezes and i have to kill the flash process to unfreeze the browser the only way i can see a youtube video is in html5 mode.
Hardware
Acer aspire 4553
Turion X2 p520
3gb of ddr3 ram
Ati Mobility Radeon 4250

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Hi,
I'm using HierarchyViewer in an application. Could you please suggest if I can catch the mouse click event on the expansion icon ["+" sign appearing right below the node]?
Thank you,
Nima

Dear Akash,
Are you sure about Disclose Listener of the HierarchyViewer??
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We have a toolbar activeX control on FP. It works perfectly on my computer, but on my coworkers deskyop, somehow the event structure doesn't capture mouse click event.
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Anne

It's a standard activeX control. I attach a simple vi .
thanks for any help.
Attachments:
toolbar test.vi ‏41 KB

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Event Handlers of a mouse click

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