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Initial commit of the synergy trunk sources from sf.net
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Sorin Sbarnea
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235
lib/platform/COSXKeyState.h
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235
lib/platform/COSXKeyState.h
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/*
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* synergy -- mouse and keyboard sharing utility
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* Copyright (C) 2004 Chris Schoeneman
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*
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* This package is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* found in the file COPYING that should have accompanied this file.
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*
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* This package is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*/
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#ifndef COSXKEYSTATE_H
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#define COSXKEYSTATE_H
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#include "CKeyState.h"
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#include "stdmap.h"
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#include "stdset.h"
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#include "stdvector.h"
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#include <Carbon/Carbon.h>
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//! OS X key state
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/*!
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A key state for OS X.
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*/
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class COSXKeyState : public CKeyState {
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public:
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typedef std::vector<KeyID> CKeyIDs;
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COSXKeyState();
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virtual ~COSXKeyState();
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//! @name modifiers
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//@{
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//! Handle modifier key change
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/*!
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Determines which modifier keys have changed and updates the modifier
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state and sends key events as appropriate.
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*/
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void handleModifierKeys(void* target,
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KeyModifierMask oldMask, KeyModifierMask newMask);
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//@}
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//! @name accessors
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//@{
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//! Convert OS X modifier mask to synergy mask
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/*!
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Returns the synergy modifier mask corresponding to the OS X modifier
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mask in \p mask.
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*/
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KeyModifierMask mapModifiersFromOSX(UInt32 mask) const;
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//! Map key event to keys
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/*!
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Converts a key event into a sequence of KeyIDs and the shadow modifier
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state to a modifier mask. The KeyIDs list, in order, the characters
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generated by the key press/release. It returns the id of the button
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that was pressed or released, or 0 if the button doesn't map to a known
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KeyID.
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*/
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KeyButton mapKeyFromEvent(CKeyIDs& ids,
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KeyModifierMask* maskOut, EventRef event) const;
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//! Map key and mask to native values
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/*!
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Calculates mac virtual key and mask for a key \p key and modifiers
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\p mask. Returns \c true if the key can be mapped, \c false otherwise.
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*/
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bool mapSynergyHotKeyToMac(KeyID key, KeyModifierMask mask,
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UInt32& macVirtualKey,
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UInt32& macModifierMask) const;
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//@}
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// IKeyState overrides
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virtual bool fakeCtrlAltDel();
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virtual KeyModifierMask
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pollActiveModifiers() const;
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virtual SInt32 pollActiveGroup() const;
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virtual void pollPressedKeys(KeyButtonSet& pressedKeys) const;
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protected:
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// CKeyState overrides
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virtual void getKeyMap(CKeyMap& keyMap);
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virtual void fakeKey(const Keystroke& keystroke);
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private:
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class CKeyResource;
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typedef std::vector<KeyboardLayoutRef> GroupList;
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// Add hard coded special keys to a CKeyMap.
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void getKeyMapForSpecialKeys(
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CKeyMap& keyMap, SInt32 group) const;
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// Convert keyboard resource to a key map
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bool getKeyMap(CKeyMap& keyMap,
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SInt32 group, const CKeyResource& r) const;
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// Get the available keyboard groups
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bool getGroups(GroupList&) const;
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// Change active keyboard group to group
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void setGroup(SInt32 group);
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// Check if the keyboard layout has changed and update keyboard state
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// if so.
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void checkKeyboardLayout();
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// Send an event for the given modifier key
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void handleModifierKey(void* target,
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UInt32 virtualKey, KeyID id,
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bool down, KeyModifierMask newMask);
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// Checks if any in \p ids is a glyph key and if \p isCommand is false.
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// If so it adds the AltGr modifier to \p mask. This allows OS X
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// servers to use the option key both as AltGr and as a modifier. If
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// option is acting as AltGr (i.e. it generates a glyph and there are
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// no command modifiers active) then we don't send the super modifier
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// to clients because they'd try to match it as a command modifier.
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void adjustAltGrModifier(const CKeyIDs& ids,
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KeyModifierMask* mask, bool isCommand) const;
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// Maps an OS X virtual key id to a KeyButton. This simply remaps
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// the ids so we don't use KeyButton 0.
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static KeyButton mapVirtualKeyToKeyButton(UInt32 keyCode);
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// Maps a KeyButton to an OS X key code. This is the inverse of
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// mapVirtualKeyToKeyButton.
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static UInt32 mapKeyButtonToVirtualKey(KeyButton keyButton);
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private:
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class CKeyResource : public IInterface {
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public:
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virtual bool isValid() const = 0;
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virtual UInt32 getNumModifierCombinations() const = 0;
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virtual UInt32 getNumTables() const = 0;
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virtual UInt32 getNumButtons() const = 0;
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virtual UInt32 getTableForModifier(UInt32 mask) const = 0;
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virtual KeyID getKey(UInt32 table, UInt32 button) const = 0;
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// Convert a character in the current script to the equivalent KeyID
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static KeyID getKeyID(UInt8);
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// Convert a unicode character to the equivalent KeyID.
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static KeyID unicharToKeyID(UniChar);
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};
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class CKCHRKeyResource : public CKeyResource {
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public:
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CKCHRKeyResource(const void*);
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// CKeyResource overrides
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virtual bool isValid() const;
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virtual UInt32 getNumModifierCombinations() const;
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virtual UInt32 getNumTables() const;
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virtual UInt32 getNumButtons() const;
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virtual UInt32 getTableForModifier(UInt32 mask) const;
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virtual KeyID getKey(UInt32 table, UInt32 button) const;
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private:
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struct KCHRResource {
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public:
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SInt16 m_version;
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UInt8 m_tableSelectionIndex[256];
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SInt16 m_numTables;
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UInt8 m_characterTables[1][128];
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};
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struct CKCHRDeadKeyRecord {
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public:
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UInt8 m_tableIndex;
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UInt8 m_virtualKey;
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SInt16 m_numCompletions;
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UInt8 m_completion[1][2];
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};
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struct CKCHRDeadKeys {
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public:
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SInt16 m_numRecords;
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CKCHRDeadKeyRecord m_records[1];
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};
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const KCHRResource* m_resource;
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};
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class CUCHRKeyResource : public CKeyResource {
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public:
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CUCHRKeyResource(const void*, UInt32 keyboardType);
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// CKeyResource overrides
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virtual bool isValid() const;
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virtual UInt32 getNumModifierCombinations() const;
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virtual UInt32 getNumTables() const;
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virtual UInt32 getNumButtons() const;
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virtual UInt32 getTableForModifier(UInt32 mask) const;
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virtual KeyID getKey(UInt32 table, UInt32 button) const;
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private:
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typedef std::vector<KeyID> KeySequence;
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bool getDeadKey(KeySequence& keys, UInt16 index) const;
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bool getKeyRecord(KeySequence& keys,
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UInt16 index, UInt16& state) const;
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bool addSequence(KeySequence& keys, UCKeyCharSeq c) const;
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private:
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const UCKeyboardLayout* m_resource;
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const UCKeyModifiersToTableNum* m_m;
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const UCKeyToCharTableIndex* m_cti;
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const UCKeySequenceDataIndex* m_sdi;
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const UCKeyStateRecordsIndex* m_sri;
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const UCKeyStateTerminators* m_st;
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UInt16 m_spaceOutput;
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};
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// OS X uses a physical key if 0 for the 'A' key. synergy reserves
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// KeyButton 0 so we offset all OS X physical key ids by this much
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// when used as a KeyButton and by minus this much to map a KeyButton
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// to a physical button.
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enum {
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KeyButtonOffset = 1
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};
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typedef std::map<KeyboardLayoutRef, SInt32> GroupMap;
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typedef std::map<UInt32, KeyID> CVirtualKeyMap;
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CVirtualKeyMap m_virtualKeyMap;
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mutable UInt32 m_deadKeyState;
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GroupList m_groups;
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GroupMap m_groupMap;
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};
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#endif
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