mirror of
https://github.com/KarolS/millfork.git
synced 2024-07-28 04:28:55 +00:00
35 lines
831 B
Markdown
35 lines
831 B
Markdown
|
[< back to index](../doc_index.md)
|
||
|
|
|
||
|
|
## keyboard
|
||
|
|
|
||
|
|
The `keyboard` module provides support for reading keypresses from the keyboard.
|
||
|
|
Not supported on all targets.
|
||
|
|
|
||
|
|
For reading entire lines of text from the keyboard, see the `readline` and `readword` functions
|
||
|
|
in [the frequently provided definitions](./frequent.md).
|
||
|
|
|
||
|
|
#### `byte readkey()`
|
||
|
|
|
||
|
|
Waits for and reads a single keypress.
|
||
|
|
|
||
|
|
The returning values may vary between platforms:
|
||
|
|
|
||
|
|
* letters may be uppercase or lowercase
|
||
|
|
|
||
|
|
* modifier keys may be applied or ignored
|
||
|
|
|
||
|
|
Available for:
|
||
|
|
Commodore 64 (requires KERNAL),
|
||
|
|
Commodore 16 or Plus/4 (requires KERNAL),
|
||
|
|
Commodore 128 (requires KERNAL),
|
||
|
|
Commodore PET (requires KERNAL),
|
||
|
|
VIC 20 (requires KERNAL),
|
||
|
|
Atari,
|
||
|
|
Amstrad CPC,
|
||
|
|
ZX Spectrum,
|
||
|
|
NEC PC-88.
|
||
|
|
|
||
|
|
#### `const byte KEY_ENTER`
|
||
|
|
|
||
|
|
Key code for the Enter/Return key. Usually 13, but not always.
|