Key down events

Hi,
I've been working on code for handling a flash-plugin inside an existing application, and have been looking at getting the flash player working with the Cocoa/CoreGraphics API.
Thus far, I have plugin loading, focus, mouse handling events all working. But then key events don't work consistently - on some flash applications, the key down events work, but on most they return a '1' but the flash app doesn't respond.
This is most odd, and a pretty esoteric type of work - I don't know many people who get this kind of work, and it's hard finding people who can share their experiences of this.
I've been going through the NPAPI docs on the mozilla website and copying a lot of the handling code in WebKit, Chromium and Firefox, but none of it seems to help any more - my handling code works the same way as that does, but the responses for key down events are different.
So, this is just a last try before I go crazy - has anyone ever seen anything like this before?
Thanks,
Tom.

Well, it is a problem with Flash Player and not Flash. I don't need an experienced Flash developer.
Seriously though, the nature of the question is so esoteric that I doubt there are many developers anywhere who could give much advice.
Thanks anyway.

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Key down event handeling when the VI isn't active

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I've written a simplel VI that increases or decreases a numerical indicator depending on which key is pressed on the keyboard. But this only works when the VI window is active (the titlebar is blue and not gray). Is there anyway to listen for the key-down event even though the VI is not active?
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tst wrote:
To expand a bit on RF's answer, while you can't use the event structure to register for key down events in other windows, there are some potential options:
You could use the input VIs to poll the keyboard (and you can have a loop which will use a user event to send each new key to an event structure). The main problem with this (and it's a big one) is that it is unreliable. You would have to poll quickly enough (probably at ~20-50 Hz) to have a decent chance of being sure that you're not missing keys and even then it's not guaranteed. The other problem is that you don't know which window was actually in focus.
You could try getting the window messages from the other window. I have no real experience with Windows messaging, but my understanding is that this will probably require you to write a custom hook in C to get it, but it's possible that this is also possible with the standard Win32 API functions. Even if it is, this is probably not something you want to get into to, but you could try looking it up.
Actually this Windows Messaging already exists in LabVIEW:
http://zone.ni.com/devzone/cda/epd/p/id/4394
However there is a few issues. It only partially works in Windows 64-bit, and you have to know the handle to the application that you want to intercept key downs for. I did a quick test and I was able to detect the KEYDOWN event in another VI that was running for for some reason got an error when I tried to get keydown on notepad. This method would eliminate polling if you can get it to work, and because of this you shouldn't miss any key presses.
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Detecting external keyboard Key Down Events in Ipad2 without EditText Field.

I am trying to detect key pressed for an external keyboard (bluetooth) in IPad2 , I was only able to do so when the focus is on EditText Field.
Without the edit text field , the key down events are not captured by the program . Is there any work around for this issue .

I am trying to detect key pressed for an external keyboard (bluetooth) in IPad2 , I was only able to do so when the focus is on EditText Field.
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http://developer.apple.com/documentation/Carbon/Conceptual/Carbon_Event_Manager/Concept/ch apter_2_section_4.html
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> Is this a known problem?
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Jeremy Paine, "ID CS3 Control Palette Oddity" #10, 17 Sep 2007 8:33 pm
Dirk

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Hi, All
I have a vi proecess key down events for panel and a numerical control in this panel. the application will do:
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CQ
Solved!
Go to Solution.
Attachments:
KeyDown_Up_valuechange.vi ‏16 KB

This works for me in 2014. In short, you just need to check to see if your numeric has the focus. If it doesn't, then you process the key value. No need for any other event here except for the stop button.
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Attachments:
KeyDown_Up_valuechange_BD.png ‏32 KB

InsertionPalette activex control key down event

Hi,
Can any one know how to get the key down event of InsertionPalette activex control.
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Ceaser,
what is the application developement environment you are working with?
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CEO: What exactly is stopping us from doing this?
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When is Key down event case triggered

Hi all,
In event structure there is an event <this VI> key Down?
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The Key Down event will only be fired when a key is pressed on the keyboard. If you want to fire an event off of a Front panel control, you can either use a User Event or a property node called Value (Signaling). This property node will cause a Value Change event to trigger when the value of the Front panel control changes.
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again - lots of ways to do this.
The attached example is just the fastest I could modify the previous version
2006 Ultimate LabVIEW G-eek.
Attachments:
keydownvi3.vi ‏53 KB

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I hope I am doing something wrong but I dont see it. It seems that independent of registering for the keydown event the action of the slider changes. I have attached an example.
Paul Falkenstein
Coleman Technologies Inc.
CLA, CPI, AIA-Vision
Labview 4.0- 2013, RT, Vision, FPGA
Attachments:
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Key down events

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