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what on Earth was I trying to do ? ( FOREACH )
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Author
Topic: what on Earth was I trying to do ? ( FOREACH ) (Read 600 times)
lazer
Full Member
Posts: 215
what on Earth was I trying to do ? ( FOREACH )
«
on:
October 13, 2022, 08:41:26 pm »
Hi,
I am porting something I wrote under TPW ( yeah, that means about 30y ago ! ) to Lazarus
I found a snip of code I can't make sense of . It looks like garbage but I'm pretty sure this is the final working code I used.
Code: Pascal
[Select]
[+]
[-]
procedure
Tspellwin
.
showbits
(
flag
:
word
)
;
procedure
showbit
(
bit
:
Pwindowsobject
)
;
far
;
begin
bit
^
.
show
(
flag
)
;
end
;
begin
foreach
(
@
showbit
)
;
if
questool<>
NIL
then
questool
^
.
show
(
sw_hide
)
;
end
;
{showbits}
It's something about hiding/showing a a bunch of controls but I can't make sense of the use foreach.
Can anyone explain that syntax ?
TIA.
Logged
Fred vS
Hero Member
Posts: 3168
Re: what on Earth was I trying to do ? ( FOREACH )
«
Reply #1 on:
October 13, 2022, 09:14:12 pm »
https://engineertips.wordpress.com/2020/04/26/delphi-foreach/
Logged
I use Lazarus 2.2.0 32/64 and FPC 3.2.2 32/64 on Debian 11 64 bit, Windows 10, Windows 7 32/64, Windows XP 32, FreeBSD 64.
Widgetset: fpGUI, MSEgui, Win32, GTK2, Qt.
https://github.com/fredvs
https://gitlab.com/fredvs
https://codeberg.org/fredvs
ccrause
Hero Member
Posts: 856
Re: what on Earth was I trying to do ? ( FOREACH )
«
Reply #2 on:
October 13, 2022, 09:48:48 pm »
Is Tspellwin perhaps derived from TCollection? It has a
foreach
method.
Logged
lazer
Full Member
Posts: 215
Re: what on Earth was I trying to do ? ( FOREACH )
«
Reply #3 on:
October 16, 2022, 01:30:18 pm »
thanks ccrause, that does seem to explain this zany syntax.
Tspellwin isn't but I'll have to check back on what it was before I ported the code. That does seem to explain what I did decades ago, I should be able to fix it now.
Many thanks.
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what on Earth was I trying to do ? ( FOREACH )
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