Absorbing mouse events

In my application, if someone clicks on a button about 10 times before it visually updates itself, the first click, initializes a change in the GUI, and another button appears in the same place. The second click, is then processed after the first press has completed, and calls the action on the next button, and so on and so on. I want to be able to stop it from doing this. Since it is all on the same thread, I can't say, absorb all button clicks until this event is complete, because they are all still sitting in the event queue. I don't exactly have a whole lot of useful methods to use in the EventQueue class to just say, hey remove all mouse events at this point. Any Ideas?
Maybe this will describe the situation better.
Mouse Click #1 added to queue
Mouse Click #1 removed from queue, processing event.
Mouse Click #2 added to Queue
Mouse Click #3 added to Queue
Mouse Click #4 added to Queue
Mouse Click #5 added to Queue
Mouse Click #1 completed event, new screen is visible.
Mouse Click #2 removed from queue, processing event on button on new screen.
...and so on
I want to be able to ignore all mouse events prior to Mouse Click #1's completion.

Suppose that when you start processing a mouse event
you set a busy flag somewhere, and when you finish
processing it you reset the flag. Your mouse listener
checks the busy flag and drops the click event if it's
set.Problem with this is when I'm at the end of the process, then I enabled the flag, THEN the next event gets processed, and the flag is enabled.
As far as disabling and enabling the buttons, I can try it, but I'm betting it is falling into the same scenario as the flag. My big issue is people double clicking, and the clicks are all registering as 1 click, so 2 seperate events get fired, first one changes the screen, second one clicks on the button on the next screen.
I may have some across a solution that I will test later. It involves storing the completion time of the operation, then when starting the next event, check the event time and see if it is after the completion time, otherwise return.

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Mouse events don't work on a button from a panel ran in a DLL

Hi.
I have a DLL that loads a panel.
Since it's a DLL I can't do the RunUserInterface() function, because the DLL would be stuck waiting for the panel events.
I only do the LoadPanel().
When I click with the mouse on one of the buttons, the pushing down event (simulating the button being pressed) doesn't happen and the callback doesn't run.
But if I press the tab button until the focus reaches the button and press Enter, the callback of the button is executed.
An even more interesting aspect is that this happens when I call the DLL on TestStand, but on an application of mine that calls the DLL just for debug everything works fine.
How can I enable the mouse events?
Thanks for your help.
Daniel Coelho
VISToolkit - http://www.vistoolkit.com - Your Real Virtual Instrument Solution
Controlar - Electronica Industrial e Sistemas, Lda
Solved!
Go to Solution.

Hello Daniel,
I got surprised when I read your post, because I am experiencing something almost the same as you do.
I have a DLL (generated by an .fp instrument driver I wrote) which performs continious TCP communication with the UUT.
It starts 2 threads, each for reading from one of the 2 different IPs the UUT has.
Another DLL tests this UUT (with the help of the communication DLL above) by exporting functions to be called by TestStand steps.
If the second DLL wants to display a CVI panel in order to wait for the user response or displays a popup (MessagePopup, ConfirmPopup, etc), user cannot press the buttons.
Actually, there is a point your program and mine differ. I call RunUserInterface and the button's callbacks call QuitUserInterface, so the execution continues after a button is pressed. The problem is buttons cannot be pressed. I also tried looping on GetUserEvent but it did not solve the problem.
There are 2 findings:
1. I had a small exe to test my instrument driver DLL and the popups in it worked pretty well (this coincides with Daniel's findings).
2. We workedaround the problem by shutting down the communication threads in the instrument driver DLL before the popup appears and restrating them afterwards. Although they are separate threads in another DLL, they were somehow blocking user events on another DLL running.
S. Eren BALCI
www.aselsan.com.tr

Mouse Events are slow

Hello everyone,
I'm currently working on an standard as3 (1024x768) app that
is running inside a chromeless Air window to take advantage of the
transparency.
All my tests where done using windows XP professional and AIR
1.0 (the same problem existed in beta3).
The issue I'm having is related with Mouse Events. Somehow
the events take a lot of time to reach the swf file when the user
clicks inside the transparent window.
It's natural that the app runs slower inside a transparent
window (the framerate drops) but I wasn't expecting the clicks to
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events properly.
I say this because I tried using the virtualMouse class from
senocular together with a socket to simulate the mouse clicks and
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Hello everyone,
I'm currently working on an standard as3 (1024x768) app that
is running inside a chromeless Air window to take advantage of the
transparency.
All my tests where done using windows XP professional and AIR
1.0 (the same problem existed in beta3).
The issue I'm having is related with Mouse Events. Somehow
the events take a lot of time to reach the swf file when the user
clicks inside the transparent window.
It's natural that the app runs slower inside a transparent
window (the framerate drops) but I wasn't expecting the clicks to
suffer from such delay (it takes sometimes 2-5sec).
The app is very CPU intensive and the transparencies make it
worse. Something inside the AIR framework is not dispatching the
events properly.
I say this because I tried using the virtualMouse class from
senocular together with a socket to simulate the mouse clicks and
that did the trick.
In conclusion:
Something in the AIR framework for windows XP is messing up
the dispatch of the Mouse events when the app is under heavy cpu
usage inside a chromeless window. I click on the window and it
takes 1-2sec to receive the click event.
However when I dispatch the MouseEvent.CLICK myself using
the virtual mouse class the application immediately receives the
event.
I know this is a strange bug and not many people will have
this problem, but I would like to know from someone with knowledge
of the runtime why this could be happening.
Thank you
Tiago Bilou

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Absorbing mouse events

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