Garbled characters after using crt in console application
lazarus / 21-General

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iruanpan · 2022-12-15 11:23

I want to use the textcolor in the crt to modify the color of the
console text, but the Chinese characters that should appear in the
console become "?", I deleted the line of textcolor but it is still
"?", I want to know how to solve this problem ,thanks.

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Handoko · 2022-12-15 11:40

I could be wrong. But as far as I know console mode only supports
ASCII and extended ASCII characters:

https://www.asciitable.com/

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Thaddy · 2022-12-15 13:28

Not quite. chcp 65001 will switch the console to utf-8. This can also
be done in code.
In windows 11 the terminal is unicode by default.

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Bart · 2022-12-15 18:09

The crt unit resets codepage upon every write to console, unles
otherwise instructed.
There are 2 procedures that influence this:
- procedure SetSafeCPSwitching
- procedure SetUseACP

Try fiddling with those.

Bart

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iruanpan · 2022-12-16 01:00

Quote from: Bart on December 15, 2022, 07:09:08 pmThe crt unit resets
codepage upon every write to console, unles otherwise instructed.
There are 2 procedures that influence this:
- procedure SetSafeCPSwitching
- procedure SetUseACP

Try fiddling with those.

Bart

I wonder how to achieve it, because I tried to call these two
procedures in the past, but it didn't work

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Fred vS · 2022-12-16 03:13

Hello.

Maybe you will have more luck using the "keyboard" unit.
I did have some trouble with "crt" unit and using "keyboard" unit
instead did the trick.
https://forum.lazarus.freepascal.org/index.php/topic,57284.msg426272.h
tml#msg426272

Maybe it could help you too.

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iruanpan · 2022-12-16 08:57

Quote from: Fred vS on December 16, 2022, 04:13:56 amHello.

Maybe you will have more luck using the "keyboard" unit.
I did have some trouble with "crt" unit and using "keyboard" unit
instead did the trick.
https://forum.lazarus.freepascal.org/index.php/topic,57284.msg426272.h
tml#msg426272

Maybe it could help you too.

Thank you but I tried your suggestion and it still doesn't work