Event Structure _ Hover over a contol

[vidyaravanaiah]

Hi,

Can LabVIEW detect "hover over a control"? How to implement this using event structure?

I tried using Mouse Move, but this doesn't work as anywhere I move the mouse it is detected as a event. 

I want the event to run when the mouse cursor is exactly on the control.

Thank you!

[mcduff]

Try a mouse enter Event.

mcduff

[cbutcher]

Yup!

You can use the Mouse > Enter event for a specific control:

[MichaelBalzer]

This can be done using the Mouse Enter and Mouse Leave events for the control.

Edit: Beaten by everybody!

[cbutcher]

What are the odds? Question posted at 17 minutes past the hour, then 3 responses within a minute of each other, 25 minutes later...

[vidyaravanaiah]

Thank you for your suggestion.

I have Event structure and a case structure inside the while loop. 

Once the mouse enter is detected, I want the associated case structure in loop to run until mouse leave event is detected.

Once the mouse leave is detected the loop should stop.

I am not able to get this working as event structure is waiting for an event to occur in the second run of while loop even though thr mouse is still on the control.

[cbutcher]

Perhaps you could do something like the following:

This is a fairly scrappy example with two separate stop controls, but you can imagine using a Case Structure in the bottom loop instead of a simple select.

Other mechanisms for communicating between loops (here, effectively via Local Variable) include perhaps a Notifier, or User Event, or so on. A notifier would probably fit your purpose fairly well, but if you have more types of things to monitor than just T/F, you could consider Events (of course, you can use more than a boolean with a notifier, so it's still possible, but if complicated, maybe choose a better fitting tool).

[JÞB]

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@vidyaravanaiah wrote:

Thank you for your suggestion.

I have Event structure and a case structure inside the while loop. 

Once the mouse enter is detected, I want the associated case structure in loop to run until mouse leave event is detected.

Once the mouse leave is detected the loop should stop.

I am not able to get this working as event structure is waiting for an event to occur in the second run of while loop even though thr mouse is still on the control.

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OK, you have that code! and it does not do what you want it to do.

why don't you SHARE your flawed code? we would be much more able to fix it if we could see it.

[aputman]

Here is how I would tackle this using a state machine.  To be able to run it, you will need JKI State Machine installed (can be found on VIPM).  As long as the mouse is in the control, this state will run once and then go to event queue to see if mouse has left control.  If not, execution comes back to this state.  Change the timeout value to control how fast the program runs. 

[mcduff]

Below I am using a JKI State Machine, a UI LAVA tool (tells me if the mouse is within a button), and the "Mouse Move" Event to highlight booleans in a radio control that is used as a hamburger menu. When the cursor is on a button, the boolean is highlighted.

mcduff