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Curious about %lv options

 
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wahorger



Joined: 13 Oct 2014
Posts: 604
Location: Morrison, CO, USA

PostPosted: Wed May 22, 2019 2:39 pm    Post subject: Curious about %lv options Reply with quote

I am curious about this only. Not asking for a change!

I have a %lv that I would like to make un-accessible via a grey control. The documentation is clear that the tilde is not a permitted option for %lv. However, I tried it anyway. The tilde was ignored, and the error thrown that I had provided an additional winio@() parameter.

I was curious if a grey control is restricted from use since %lv is (also according to the documentation) a window. Shall I try adding a %lc and use the show/hide window functions?

Thanks,
Bill
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John-Silver



Joined: 30 Jul 2013
Posts: 1176
Location: Aerospace Valley

PostPosted: Wed May 22, 2019 8:00 pm    Post subject: Reply with quote

all controls are windows
... of one type or another
_________________
''Computers (HAL and MARVIN excepted) are incredibly rigid. They question nothing. Especially input data.Human beings are incredibly trusting of computers and don't check input data. Together cocking up even the simplest calculation ... Smile "
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PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 6002
Location: Salford, UK

PostPosted: Thu May 23, 2019 1:07 pm    Post subject: Reply with quote

Bill

%lv does not take a tilde. Also it does not fault if one is supplied but this can be fixed.

You could get the hwnd of the control via %lc and then use it in a call to EnableWindow(hwnd, v) where v is 32 bit integer with value 0 or 1.
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wahorger



Joined: 13 Oct 2014
Posts: 604
Location: Morrison, CO, USA

PostPosted: Thu May 23, 2019 2:04 pm    Post subject: Reply with quote

Paul, thanks. I suspected as much!
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