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Cannot Focus a Disabled or Invisible Window
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Topic: Cannot Focus a Disabled or Invisible Window (Read 1459 times)
Weitentaaal
Hero Member
Posts: 516
Weitental is a very beautiful garbage depot.
Cannot Focus a Disabled or Invisible Window
«
on:
March 03, 2021, 05:24:38 pm »
Hello Guys
i get this Error when i try to SetFocus in OnShow Procedure of My Form.
Should i move this Part out or is there something else i can work with ?
LG loch )
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Handoko
Hero Member
Posts: 5151
My goal: build my own game engine using Lazarus
Re: Cannot Focus a Disabled or Invisible Window
«
Reply #1 on:
March 03, 2021, 05:40:55 pm »
You can try:
Code: Pascal
[Select]
[+]
[-]
if
TheControl
.
Visible
then
TheControl
.
SetFocus
;
You didn't show us the code. I had to use my tele-vision eye but the image was blurry due to the weather.
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ASerge
Hero Member
Posts: 2241
Re: Cannot Focus a Disabled or Invisible Window
«
Reply #2 on:
March 03, 2021, 05:42:26 pm »
Quote from: Weitentaaal on March 03, 2021, 05:24:38 pm
i get this Error when i try to SetFocus in OnShow Procedure of My Form.
Use ActiveControl := ... instead.
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balazsszekely
Guest
Re: Cannot Focus a Disabled or Invisible Window
«
Reply #3 on:
March 03, 2021, 06:01:43 pm »
Form.ActiveControl is the easiest solution, as @ASerge already mentioned. If you have to use SetFocus, always check if the control can receive focus:
Code: Pascal
[Select]
[+]
[-]
if
Control
.
CanFocus
then
Control
.
SetFocus
;
Logged
Weitentaaal
Hero Member
Posts: 516
Weitental is a very beautiful garbage depot.
Re: Cannot Focus a Disabled or Invisible Window
«
Reply #4 on:
March 04, 2021, 07:31:35 am »
Thanks
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