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How to use GetWindowText() correctly?
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Author
Topic: How to use GetWindowText() correctly? (Read 546 times)
was
Newbie
Posts: 5
How to use GetWindowText() correctly?
«
on:
June 27, 2022, 12:56:52 pm »
Hello, I use GetWindowText() to get Application's title, but Non English characters cannot be displayed.
Logged
paweld
Hero Member
Posts: 1003
Re: How to use GetWindowText() correctly?
«
Reply #1 on:
June 27, 2022, 01:17:43 pm »
Code: Pascal
[Select]
[+]
[-]
procedure
TForm1
.
Button1Click
(
Sender
:
TObject
)
;
var
szText
:
WideString
;
begin
Edit1
.
Text
:
=
Caption
;
if
GetWindowTextW
(
GetForegroundWindow
,
PWideChar
(
szText
)
,
GetWindowTextLengthW
(
GetForegroundWindow
)
)
>
0
then
Edit2
.
Text
:
=
szText
;
end
;
Logged
Best regards / Pozdrawiam
paweld
PascalDragon
Hero Member
Posts: 5486
Compiler Developer
Re: How to use GetWindowText() correctly?
«
Reply #2 on:
June 27, 2022, 01:20:58 pm »
@paweld: you should not mix
PWideChar
and
WideString
like this, cause
GetWindowTextW
won't allocate the buffer for you. So you should do (not tested):
Code: Pascal
[Select]
[+]
[-]
SetLength
(
szText
,
GetWindowTextLengthW
(
GetForegroundWindow
)
)
;
if
GetWindowTextW
(
GetForegroundWindow
,
PWideChar
(
szText
)
,
Length
(
szText
)
)
>
0
then
«
Last Edit: June 28, 2022, 01:30:09 pm by PascalDragon
»
Logged
paweld
Hero Member
Posts: 1003
Re: How to use GetWindowText() correctly?
«
Reply #3 on:
June 27, 2022, 02:10:03 pm »
@PascalDragon: thank you very much for the explanation
Logged
Best regards / Pozdrawiam
paweld
was
Newbie
Posts: 5
Re: How to use GetWindowText() correctly?
«
Reply #4 on:
June 27, 2022, 03:27:42 pm »
@paweld, @PascalDragon: thank you very much.
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How to use GetWindowText() correctly?
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