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47 lines
1.2 KiB
Markdown
47 lines
1.2 KiB
Markdown
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[← Home](../README.md) · [Libraries](README.md)
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# keymap.library — Keyboard Mapping
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## Overview
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`keymap.library` translates raw keycodes from `keyboard.device` into character codes using the active keymap. Each keymap defines the mapping from physical keys to characters, including dead keys and string sequences.
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---
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## Key Functions
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```c
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/* Map a raw keycode + qualifiers to ASCII: */
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LONG actual = MapRawKey(&inputEvent, buffer, bufsize, NULL);
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/* Returns number of characters, -1 if buffer too small */
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/* Map ANSI code back to raw key: */
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WORD MapANSI(STRPTR string, WORD count,
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STRPTR buffer, WORD length,
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struct KeyMap *keyMap);
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```
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---
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## struct KeyMap
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```c
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/* devices/keymap.h — NDK39 */
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struct KeyMap {
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UBYTE *km_LoKeyMapTypes; /* type array for keys 0x00–0x3F */
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ULONG *km_LoKeyMap; /* mapping array for keys 0x00–0x3F */
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UBYTE *km_LoCapsable; /* caps-lock bitmap */
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UBYTE *km_LoRepeatable; /* auto-repeat bitmap */
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UBYTE *km_HiKeyMapTypes; /* type array for keys 0x40–0x77 */
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ULONG *km_HiKeyMap;
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UBYTE *km_HiCapsable;
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UBYTE *km_HiRepeatable;
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};
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```
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---
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## References
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- NDK39: `devices/keymap.h`, `libraries/keymap.h`
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