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Pirk
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posted on 7-1-2010 at 12:08 PM
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a conflict maybe.. but with which other program? windows 7 itself?!
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Pirk
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 posted on 7-1-2010 at 01:39 PM
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VB6 Keypress Bug
Perhaps it has something to do with it:
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I have a simple application that traps the arrow keys in the form keydown event (key preview turned on).
It works great for between 10 and 30 keypresses then the form doesn't get the arrow down and the form keydown event is not fired.
I've tested this by disabling every item on the form except for one label that has the focus. I even moved the keydown code into the label's keydown
event and had the exact same result.
Has anyone else experienced what I presume is a weird bug? Is there a fix?
Many thanks.
Bob
Doh!!! Found the problem. I had a small animated GIF running on one page using a small Activex control I found on the net. I used a
timer to change the GIF every once in a while. That form was used to load the form that was trying to trap the arrow keys. When the
timer went off, the Activex would run another GIF and for some reason that would screw up the arrow keys. Weirdly enough, not the page up or page down
keys. Anyway who needs animations playing on hidden forms? I turned off the timer and stopped the GIF playback before loading form2 and the problem
went away. Sorry for the false alarm!
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Audiosoft, I suspect that your Page Up/Down animation (timer) interferes with my keyboard up/down keys! 
http://www.bigresource.com/Tracker/Track-vb-VsZmmDNFjk/
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Pirk
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 posted on 7-1-2010 at 03:20 PM
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KeyPress problem in VB
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re: KeyPress problem in VB.NET - any ideas welcome
Yes, Keypress and all keyinput events are buggy, in Framework 1.1 at least. We have a larger app where the enter key stops working sooner
or later (it happens app wide, only restart will fix it..), instead the last button used get's clicked. (in my case i've teached the user to use
cltr-enter instead that seems to work all the time..)
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http://bytes.com/topic/visual-basic-net/answers/353334-keypress-problem-vb-net-any-ideas-welcome
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Pirk
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posted on 7-1-2010 at 04:25 PM
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Audiosoft, maybe you should not use KeyPress, but KeyDown instead? or a totally different way... 
 Pirk |
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Audiosoft
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posted on 7-14-2010 at 08:39 AM
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Pirk,
Think i should have just made the up and down arrows work like they used to when the "up/down arrows -> page up/down" is checked.
Here try this EXE. It no longer does animate full page at a time but it is faster for scrolling up and down in the lists when you hold the up and down
arrows.
Let me know if this is better for you and if it gets around the 11 times problem. make sure "up/down arrows -> page up/down" is checked and test
arrows vs keyboard pageup/down.
Attachment: ejukebox.exe (2.91mb)
This file has been downloaded 957 times
Audiosoft |
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Pirk
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posted on 7-14-2010 at 10:33 AM
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Audiosoft, i just tried your new EXE. the 11 times problem no longer happens using the up/down arrows, since you removed the animation! but it still
occurs if I use the page up/down keyboard keys. thus for someone who would have never seen the animated page up/down on the remote, he could live
without it.. but it's a pity!
I would have my own way to solve this 11 times problem: be careful it's not very scientific, but efficient! maybe at the 10th page/up down or more
often if necessary you could discretely (internally) check/unchecked the "disable keyboard shortcut" option. so the bug would be reseted before it
occurs!
Thanks.
Pirk |
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