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Added notes on keyboard handling.

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crs 2002-04-25 10:44:01 +00:00
parent 7d9fa41514
commit b01fc4bd35
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@ -99,3 +99,24 @@ X11 key translation (server)
* don't send compose, don't send dead keys, send composed key? * don't send compose, don't send dead keys, send composed key?
* send all keys, let client do compose * send all keys, let client do compose
---
translate keys to keysyms
shift state is embedded in keysym
alt/ctrl/meta are stored separately, also caps/num/scroll lock
shift state also stored separately
X to keysym:
keycode + shift -> keysym via XLookupString()
X from keysym:
keysym -> XKeysymToKeycode() or XGetKeyboardMapping() and search for index
must synth shift key events to get correct index for key
Win32 to keysym:
VK code + shift -> keysym via table lookup
Win32 from keysym:
VK code and shift via table lookup
must synth shift key events to get correct character for key
don't allow leaving screen when any key is down
that includes shift keys
caps lock, etc must not be down but can be on