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Resolved keydown event doesn't trigger when alt key pressed

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  1. mike S
    mike S
  2. PowerBuilder
  3. Monday, 22 May 2023 13:44 PM UTC

anyone have any clever solutions for capturing a key when the alt key is pressed?  Looking to grab up/down arrow when the alt key is pressed, but the keydown event does not fire.

Lost my To Do List
Looking for a PowerBuilder UI theme management too...
Accepted Answer
Mark Goldsmith
Mark Goldsmith Accepted Answer Pending Moderation
  1. Monday, 22 May 2023 15:40 PM UTC
  2. PowerBuilder
  3. # Permalink

Hi Mike...haven't tried this so I can't provide any input on whether it would work for your use case but take a look at Andrew's reply to this posting: https://community.appeon.com/index.php/qna/q-a/how-can-i-catch-tab-key. The OP's question was around the tab key but the solution Andrew provided suggests that it would work for the Alt key as well.  

HTH...regards,

Mark

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mike S
  1. mike S
  2. Monday, 22 May 2023 15:52 PM UTC
thanks, yes that does look like what would have to be done. and it has the code for handling the alt key press
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Chris Pollach @Appeon
Chris Pollach @Appeon Accepted Answer Pending Moderation
  1. Monday, 22 May 2023 13:49 PM UTC
  2. PowerBuilder
  3. # 1

Hi Mike;

 On what object class are you looking to capture this activity on?

Regards... Chris 

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mike S
mike S Accepted Answer Pending Moderation
  1. Monday, 22 May 2023 14:04 PM UTC
  2. PowerBuilder
  3. # 2

datawindow

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Chris Pollach @Appeon
  1. Chris Pollach @Appeon
  2. Monday, 22 May 2023 14:19 PM UTC
Are you assuming that the DC will always have focus when you're trying to capture the keystrokes!
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mike S
  1. mike S
  2. Monday, 22 May 2023 15:05 PM UTC
yes. works fine when you press the up/arrow or down arrow key. press alt key at the same time and it does not fire.



it isn't really a PB bug, but a 'feature' in windows. Seems to be some weird work arounds available in c# apps. I need to know if the alt key is pressed with those in order to make the UI work the same in my custom dddw's as it does in 'real' dddws.





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