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How to handle Buttons on TUpDown component ?
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Topic: How to handle Buttons on TUpDown component ? (Read 2389 times)
DenPit5
New Member
Posts: 21
How to handle Buttons on TUpDown component ?
«
on:
February 13, 2019, 05:26:00 pm »
Can anyone explain How to distinguish which of the two buttuns on the TUpDown control was pressed. ?
Logged
Handoko
Hero Member
Posts: 5158
My goal: build my own game engine using Lazarus
Re: How to handle Buttons on TUpDown component ?
«
Reply #1 on:
February 13, 2019, 05:29:57 pm »
Something like this below?
Code: Pascal
[Select]
[+]
[-]
procedure
TForm1
.
UpDown1Click
(
Sender
:
TObject
;
Button
:
TUDBtnType
)
;
begin
case
Button
of
btNext
:
ShowMessage
(
'Up is pressed'
)
;
btPrev
:
ShowMessage
(
'Down is pressed'
)
;
end
;
end
;
Logged
dsiders
Hero Member
Posts: 1084
Re: How to handle Buttons on TUpDown component ?
«
Reply #2 on:
February 13, 2019, 05:31:26 pm »
Quote from: DenPit5 on February 13, 2019, 05:26:00 pm
Can anyone explain How to distinguish which of the two buttuns on the TUpDown control was pressed. ?
OnClick gets a TUDBtnType parameter: btPrev, btNext.
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Preview Lazarus 3.99 documentation at:
https://dsiders.gitlab.io/lazdocsnext
DenPit5
New Member
Posts: 21
Re: How to handle Buttons on TUpDown component ?
«
Reply #3 on:
February 13, 2019, 09:17:24 pm »
Many thanks HanDoko and dsiders for replies. That is just what I required. Thanks again.
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How to handle Buttons on TUpDown component ?
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