（1）
/*
The QKeyEvent class describes a key event.
Detailed Description ：
当按键被按下或释放时，键盘输入焦点会将键事件发送给小部件。
-个关键事件包含一个特殊的接受标志，该标志指示接收者是否将处理该关键事件。
对于 QEvent:KeyPress 和QEvent::KeyRelease，该标志默认为已设置，
因此在处理关键事件时无需调用 accept ()方法。
对于 QEvent:.Shortcutoveride，接收者需要显式接受该事件以触发重定义。
在关键事件上调用ignore()方法会将该事件传播到其父控件。
事件会沿着父控件链向上传播，直到有控件接受它或事件过滤器将其消耗掉。
QWidget::setEnabled()函数可用于启用或禁用对某个窗口的鼠标和键盘事件。
事件处理程序QWidget::keyPressEvent()，QWidget::keyReleaseEvent()，
QGraphicsItem::keyPressEvent()和QGraphicsItem::keyReleaseEvent()接收关键事件。
*/
class Q_GUI_EXPORT QKeyEvent : public QInputEvent //enum Qt::Key { ... };
{
Q_EVENT_DISABLE_COPY(QKeyEvent);
protected:
QString m_text ;
int m_key ; //键码
quint32 m_scanCode ;
quint32 m_virtualKey ;
quint32 m_nativeModifiers; //修饰符
quint16 m_count : 15;
quint16 m_autoRepeat : 1;
friend inline bool operator== (QKeyEvent * e, QKeySequence::StandardKey key)
{ return (e ? e->matches(key) : false); }
friend inline bool operator== (QKeySequence::StandardKey key, QKeyEvent * e)
{ return (e ? e->matches(key) : false); }
public:
//Constructs a key event object.
//The type parameter must be QEvent::KeyPress,
// QEvent::KeyRelease, or QEvent::ShortcutOverride.
//Int key is the code for the Qt::Key that the event loop should listen for.
//If key is 0, the event is not a result of a known key;
// for example, it may be the result of a compose sequence or keyboard macro.
//The modifiers holds the keyboard modifiers,
// and the given text is the Unicode text that the key generated.
//If autorep is true, isAutoRepeat() will be true.
//count is the number of keys involved in the event.
//说人话:事件类型，键盘符，修饰符，对应按键文本，是否重复，涉及的按键数量。
QKeyEvent(Type type, int key, Qt::KeyboardModifiers modifiers,
const QString & text = QString(),
bool autorep = false, quint16 count = 1);
QKeyEvent(Type type, int key, Qt::KeyboardModifiers modifiers, //增加了对快捷键的描述
quint32 nativeScanCode, quint32 nativeVirtualKey, quint32 nativeModifiers,
const QString & text = QString(),
bool autorep = false, quint16 count = 1,
const QInputDevice * device = QInputDevice::primaryKeyboard());
//In addition to the normal key event data,
// also contains nativeScanCode, nativeVirtualKey and nativeModifiers.
//This extra data is used by the shortcut system,
// to determine which shortcuts to trigger.
~QKeyEvent();
QKeyEvent * clone() const override { return new QKeyEvent(* this); }
//返回此键生成的Unicode文本。
//当按下Shift、Control、Alt和Meta等修饰键时，返回值因平台而异，并可能返回空字符串。
//注意:key()将始终返回一个有效值，与修饰键无关。
inline
QString text () const { return m_text; }
int key () const { return m_key ; }
//返回按下或释放的键的代码。请参阅 Qt:.Key 查看键盘代码列表。这些代码与底层窗口系统无关。
//请注意，此函数不区分大写和小写字母，请使用 text()函数(返回由该键生成的 Unicode 文本)来实现此功能。
//值要么是0，要么是Ot:Key unknown，表示该事件并非已知键的结果;
// 例如，它可能是合成序列、键盘宏的结果或者是由键事件压缩导致的。
//enum QKeySequence::StandardKey { ..., Open, Close, ... };//描述快捷键的语义
bool matches(QKeySequence::StandardKey key) const;
//Returns true if the key event matches the given standard key;
// otherwise returns false.
//返回键事件的原生扫描代码。如果键事件不包含此数据，则返回0。
//注意:即使按键事件包含扩展信息，原生扫描代码也可能为0。
inline quint32 nativeScanCode () const { return m_scanCode ; }
inline quint32 nativeVirtualKey() const { return m_virtualKey ; }
//返回原生虚拟键，或键事件的键符号。如果键事件不包含此数据，则返回0。
inline quint32 nativeModifiers () const { return m_nativeModifiers; }
//Returns the native modifiers of a key event.
//If the key event does not contain this data 0 is returned.
Qt::KeyboardModifiers modifiers() const; //修饰符相关
//返回事件发生后立即存在的键盘修饰符标志。
//警告:这个函数并非总是可靠。例如，用户可以通过同时按下Shift键然后松开其中一个键来混淆其功能。
inline int count () const { return int(m_count); }
inline bool isAutoRepeat() const { return m_autoRepeat; }
//class QKeyCombination { int combination; };
//Returns a QKeyCombination object containing both the key() and the
// modifiers() carried by this event.
QKeyCombination keyCombination() const
{
return QKeyCombination(modifiers(), Qt::Key(m_key));
}
}; //完结 class QKeyEvent : public QInputEvent
++ 测试一下 ：
（2） 类 QKeyCombination ：
//The QKeyCombination class stores a combination of a key with optional modifiers.
//QKeyCombination 类可以用于表示键与零个或多个键盘修饰符的组合。
class QKeyCombination
{
int combination;
public:
constexpr Q_IMPLICIT
QKeyCombination(Qt::Key key = Qt::Key_unknown) noexcept
: combination(int(key)) {}
constexpr explicit
QKeyCombination(Qt:: Modifiers modifiers, //这两种修饰符都在本文件里，一样内容的
Qt::Key key = Qt::Key_unknown) noexcept
: combination(modifiers.toInt() | int(key)) {}
constexpr explicit
QKeyCombination(Qt::KeyboardModifiers modifiers,
Qt::Key key = Qt::Key_unknown) noexcept
: combination(modifiers.toInt() | int(key)) {}
constexpr Qt::KeyboardModifiers keyboardModifiers() const noexcept
{
return Qt::KeyboardModifiers(combination & Qt::KeyboardModifierMask);
}
constexpr Qt::Key key () const noexcept
{
return Qt::Key(combination & ~int(Qt::KeyboardModifierMask));
}
static constexpr
QKeyCombination fromCombined(int combined) //由一个数值得到按键组合
{
QKeyCombination result;
result.combination = combined;
return result;
}
constexpr
int toCombined() const noexcept //给出本类存储的按键组合
{
return combination;
}
friend constexpr bool operator== (QKeyCombination lhs, QKeyCombination rhs) noexcept
{
return lhs.combination == rhs.combination;
}
friend constexpr bool operator!= (QKeyCombination lhs, QKeyCombination rhs) noexcept
{
return lhs.combination != rhs.combination;
}
bool operator<(QKeyCombination) const = delete;
}; //完结 class QKeyCombination
Q_DECLARE_TYPEINFO(QKeyCombination, Q_RELOCATABLE_TYPE);
constexpr QKeyCombination operator|(Qt::Modifier modifier, Qt::Key key) noexcept
{
return QKeyCombination(modifier, key);
}
constexpr QKeyCombination operator|(Qt::Modifiers modifiers, Qt::Key key) noexcept
{
return QKeyCombination(modifiers, key);
}
constexpr QKeyCombination operator|(Qt::KeyboardModifier modifier, Qt::Key key) noexcept
{
return QKeyCombination(modifier, key);
}
constexpr QKeyCombination operator|(Qt::KeyboardModifiers modifiers, Qt::Key key) noexcept
{
return QKeyCombination(modifiers, key);
}
constexpr QKeyCombination operator|(Qt::Key key, Qt::Modifier modifier) noexcept
{
return QKeyCombination(modifier, key);
}
constexpr QKeyCombination operator|(Qt::Key key, Qt::Modifiers modifiers) noexcept
{
return QKeyCombination(modifiers, key);
}
constexpr QKeyCombination operator|(Qt::Key key, Qt::KeyboardModifier modifier) noexcept
{
return QKeyCombination(modifier, key);
}
constexpr QKeyCombination operator|(Qt::Key key, Qt::KeyboardModifiers modifiers) noexcept
{
return QKeyCombination(modifiers, key);
}
（3） 枚举类 Key ，该类里的枚举量非常多，慎重点开 ：
//The key names used by Qt.
enum Key {
// Unicode Basic Latin block (0x00-0x7f) 共 255 个，还有不同语言的键盘
Key_Space = 0x20,
Key_Any = Key_Space,
Key_Exclam = 0x21,
Key_QuoteDbl = 0x22,
Key_NumberSign = 0x23,
Key_Dollar = 0x24,
Key_Percent = 0x25,
Key_Ampersand = 0x26,
Key_Apostrophe = 0x27,
Key_ParenLeft = 0x28,
Key_ParenRight = 0x29,
Key_Asterisk = 0x2a,
Key_Plus = 0x2b,
Key_Comma = 0x2c,
Key_Minus = 0x2d,
Key_Period = 0x2e,
Key_Slash = 0x2f,
Key_0 = 0x30,
Key_1 = 0x31,
Key_2 = 0x32,
Key_3 = 0x33,
Key_4 = 0x34,
Key_5 = 0x35,
Key_6 = 0x36,
Key_7 = 0x37,
Key_8 = 0x38,
Key_9 = 0x39,
Key_Colon = 0x3a,
Key_Semicolon = 0x3b,
Key_Less = 0x3c,
Key_Equal = 0x3d,
Key_Greater = 0x3e,
Key_Question = 0x3f,
Key_At = 0x40,
Key_A = 0x41,
Key_B = 0x42,
Key_C = 0x43,
Key_D = 0x44,
Key_E = 0x45,
Key_F = 0x46,
Key_G = 0x47,
Key_H = 0x48,
Key_I = 0x49,
Key_J = 0x4a,
Key_K = 0x4b,
Key_L = 0x4c,
Key_M = 0x4d,
Key_N = 0x4e,
Key_O = 0x4f,
Key_P = 0x50,
Key_Q = 0x51,
Key_R = 0x52,
Key_S = 0x53,
Key_T = 0x54,
Key_U = 0x55,
Key_V = 0x56,
Key_W = 0x57,
Key_X = 0x58,
Key_Y = 0x59,
Key_Z = 0x5a,
Key_BracketLeft = 0x5b,
Key_Backslash = 0x5c,
Key_BracketRight = 0x5d,
Key_AsciiCircum = 0x5e,
Key_Underscore = 0x5f,
Key_QuoteLeft = 0x60,
Key_BraceLeft = 0x7b,
Key_Bar = 0x7c,
Key_BraceRight = 0x7d,
Key_AsciiTilde = 0x7e,
// Unicode Latin-1 Supplement block (0x80-0xff)
Key_nobreakspace = 0x0a0,
Key_exclamdown = 0x0a1,
Key_cent = 0x0a2,
Key_sterling = 0x0a3,
Key_currency = 0x0a4,
Key_yen = 0x0a5,
Key_brokenbar = 0x0a6,
Key_section = 0x0a7,
Key_diaeresis = 0x0a8,
Key_copyright = 0x0a9,
Key_ordfeminine = 0x0aa,
Key_guillemotleft = 0x0ab, // left angle quotation mark
Key_notsign = 0x0ac,
Key_hyphen = 0x0ad,
Key_registered = 0x0ae,
Key_macron = 0x0af,
Key_degree = 0x0b0,
Key_plusminus = 0x0b1,
Key_twosuperior = 0x0b2,
Key_threesuperior = 0x0b3,
Key_acute = 0x0b4,
Key_mu = 0x0b5,
Key_paragraph = 0x0b6,
Key_periodcentered = 0x0b7,
Key_cedilla = 0x0b8,
Key_onesuperior = 0x0b9,
Key_masculine = 0x0ba,
Key_guillemotright = 0x0bb, // right angle quotation mark
Key_onequarter = 0x0bc,
Key_onehalf = 0x0bd,
Key_threequarters = 0x0be,
Key_questiondown = 0x0bf,
Key_Agrave = 0x0c0,
Key_Aacute = 0x0c1,
Key_Acircumflex = 0x0c2,
Key_Atilde = 0x0c3,
Key_Adiaeresis = 0x0c4,
Key_Aring = 0x0c5,
Key_AE = 0x0c6,
Key_Ccedilla = 0x0c7,
Key_Egrave = 0x0c8,
Key_Eacute = 0x0c9,
Key_Ecircumflex = 0x0ca,
Key_Ediaeresis = 0x0cb,
Key_Igrave = 0x0cc,
Key_Iacute = 0x0cd,
Key_Icircumflex = 0x0ce,
Key_Idiaeresis = 0x0cf,
Key_ETH = 0x0d0,
Key_Ntilde = 0x0d1,
Key_Ograve = 0x0d2,
Key_Oacute = 0x0d3,
Key_Ocircumflex = 0x0d4,
Key_Otilde = 0x0d5,
Key_Odiaeresis = 0x0d6,
Key_multiply = 0x0d7,
Key_Ooblique = 0x0d8,
Key_Ugrave = 0x0d9,
Key_Uacute = 0x0da,
Key_Ucircumflex = 0x0db,
Key_Udiaeresis = 0x0dc,
Key_Yacute = 0x0dd,
Key_THORN = 0x0de,
Key_ssharp = 0x0df,
Key_division = 0x0f7,
Key_ydiaeresis = 0x0ff,
// The rest of the Unicode values are skipped here,
// so that we can represent them along with Qt::Keys
// in the same data type. The maximum Unicode value
// is 0x0010ffff, so we start our custom keys at
// 0x01000000 to not clash with the Unicode values,
// but still give plenty of room to grow.
Key_Escape = 0x01000000, // misc keys
Key_Tab = 0x01000001,
Key_Backtab = 0x01000002,
Key_Backspace = 0x01000003,
Key_Return = 0x01000004,
Key_Enter = 0x01000005,
Key_Insert = 0x01000006,
Key_Delete = 0x01000007,
Key_Pause = 0x01000008,
Key_Print = 0x01000009, // print screen
Key_SysReq = 0x0100000a,
Key_Clear = 0x0100000b,
Key_Home = 0x01000010, // cursor movement
Key_End = 0x01000011,
Key_Left = 0x01000012,
Key_Up = 0x01000013,
Key_Right = 0x01000014,
Key_Down = 0x01000015,
Key_PageUp = 0x01000016,
Key_PageDown = 0x01000017,
Key_Shift = 0x01000020, // modifiers
Key_Control = 0x01000021,
Key_Meta = 0x01000022,
Key_Alt = 0x01000023,
Key_CapsLock = 0x01000024,
Key_NumLock = 0x01000025,
Key_ScrollLock = 0x01000026,
Key_F1 = 0x01000030, // function keys
Key_F2 = 0x01000031,
Key_F3 = 0x01000032,
Key_F4 = 0x01000033,
Key_F5 = 0x01000034,
Key_F6 = 0x01000035,
Key_F7 = 0x01000036,
Key_F8 = 0x01000037,
Key_F9 = 0x01000038,
Key_F10 = 0x01000039,
Key_F11 = 0x0100003a,
Key_F12 = 0x0100003b,
Key_F13 = 0x0100003c,
Key_F14 = 0x0100003d,
Key_F15 = 0x0100003e,
Key_F16 = 0x0100003f,
Key_F17 = 0x01000040,
Key_F18 = 0x01000041,
Key_F19 = 0x01000042,
Key_F20 = 0x01000043,
Key_F21 = 0x01000044,
Key_F22 = 0x01000045,
Key_F23 = 0x01000046,
Key_F24 = 0x01000047,
Key_F25 = 0x01000048, // F25 .. F35 only on X11
Key_F26 = 0x01000049,
Key_F27 = 0x0100004a,
Key_F28 = 0x0100004b,
Key_F29 = 0x0100004c,
Key_F30 = 0x0100004d,
Key_F31 = 0x0100004e,
Key_F32 = 0x0100004f,
Key_F33 = 0x01000050,
Key_F34 = 0x01000051,
Key_F35 = 0x01000052,
Key_Super_L = 0x01000053, // extra keys
Key_Super_R = 0x01000054,
Key_Menu = 0x01000055,
Key_Hyper_L = 0x01000056,
Key_Hyper_R = 0x01000057,
Key_Help = 0x01000058,
Key_Direction_L = 0x01000059,
Key_Direction_R = 0x01000060,
// International input method support (X keycode - 0xEE00, the
// definition follows Qt/Embedded 2.3.7) Only interesting if
// you are writing your own input method
// International & multi-key character composition
Key_AltGr = 0x01001103,
Key_Multi_key = 0x01001120, // Multi-key character compose
Key_Codeinput = 0x01001137,
Key_SingleCandidate = 0x0100113c,
Key_MultipleCandidate = 0x0100113d,
Key_PreviousCandidate = 0x0100113e,
// Misc Functions
Key_Mode_switch = 0x0100117e, // Character set switch
//Key_script_switch = 0x0100117e, // Alias for mode_switch
// Japanese keyboard support
Key_Kanji = 0x01001121, // Kanji, Kanji convert
Key_Muhenkan = 0x01001122, // Cancel Conversion
//Key_Henkan_Mode = 0x01001123, // Start/Stop Conversion
Key_Henkan = 0x01001123, // Alias for Henkan_Mode
Key_Romaji = 0x01001124, // to Romaji
Key_Hiragana = 0x01001125, // to Hiragana
Key_Katakana = 0x01001126, // to Katakana
Key_Hiragana_Katakana = 0x01001127, // Hiragana/Katakana toggle
Key_Zenkaku = 0x01001128, // to Zenkaku
Key_Hankaku = 0x01001129, // to Hankaku
Key_Zenkaku_Hankaku = 0x0100112a, // Zenkaku/Hankaku toggle
Key_Touroku = 0x0100112b, // Add to Dictionary
Key_Massyo = 0x0100112c, // Delete from Dictionary
Key_Kana_Lock = 0x0100112d, // Kana Lock
Key_Kana_Shift = 0x0100112e, // Kana Shift
Key_Eisu_Shift = 0x0100112f, // Alphanumeric Shift
Key_Eisu_toggle = 0x01001130, // Alphanumeric toggle
//Key_Kanji_Bangou = 0x01001137, // Codeinput
//Key_Zen_Koho = 0x0100113d, // Multiple/All Candidate(s)
//Key_Mae_Koho = 0x0100113e, // Previous Candidate
// Korean keyboard support
//
// In fact, many Korean users need only 2 keys, Key_Hangul and
// Key_Hangul_Hanja. But rest of the keys are good for future.
Key_Hangul = 0x01001131, // Hangul start/stop(toggle)
Key_Hangul_Start = 0x01001132, // Hangul start
Key_Hangul_End = 0x01001133, // Hangul end, English start
Key_Hangul_Hanja = 0x01001134, // Start Hangul->Hanja Conversion
Key_Hangul_Jamo = 0x01001135, // Hangul Jamo mode
Key_Hangul_Romaja = 0x01001136, // Hangul Romaja mode
//Key_Hangul_Codeinput = 0x01001137, // Hangul code input mode
Key_Hangul_Jeonja = 0x01001138, // Jeonja mode
Key_Hangul_Banja = 0x01001139, // Banja mode
Key_Hangul_PreHanja = 0x0100113a, // Pre Hanja conversion
Key_Hangul_PostHanja = 0x0100113b, // Post Hanja conversion
//Key_Hangul_SingleCandidate = 0x0100113c, // Single candidate
//Key_Hangul_MultipleCandidate = 0x0100113d, // Multiple candidate
//Key_Hangul_PreviousCandidate = 0x0100113e, // Previous candidate
Key_Hangul_Special = 0x0100113f, // Special symbols
//Key_Hangul_switch = 0x0100117e, // Alias for mode_switch
// dead keys (X keycode - 0xED00 to avoid the conflict)
Key_Dead_Grave = 0x01001250,
Key_Dead_Acute = 0x01001251,
Key_Dead_Circumflex = 0x01001252,
Key_Dead_Tilde = 0x01001253,
Key_Dead_Macron = 0x01001254,
Key_Dead_Breve = 0x01001255,
Key_Dead_Abovedot = 0x01001256,
Key_Dead_Diaeresis = 0x01001257,
Key_Dead_Abovering = 0x01001258,
Key_Dead_Doubleacute = 0x01001259,
Key_Dead_Caron = 0x0100125a,
Key_Dead_Cedilla = 0x0100125b,
Key_Dead_Ogonek = 0x0100125c,
Key_Dead_Iota = 0x0100125d,
Key_Dead_Voiced_Sound = 0x0100125e,
Key_Dead_Semivoiced_Sound = 0x0100125f,
Key_Dead_Belowdot = 0x01001260,
Key_Dead_Hook = 0x01001261,
Key_Dead_Horn = 0x01001262,
Key_Dead_Stroke = 0x01001263,
Key_Dead_Abovecomma = 0x01001264,
Key_Dead_Abovereversedcomma = 0x01001265,
Key_Dead_Doublegrave = 0x01001266,
Key_Dead_Belowring = 0x01001267,
Key_Dead_Belowmacron = 0x01001268,
Key_Dead_Belowcircumflex = 0x01001269,
Key_Dead_Belowtilde = 0x0100126a,
Key_Dead_Belowbreve = 0x0100126b,
Key_Dead_Belowdiaeresis = 0x0100126c,
Key_Dead_Invertedbreve = 0x0100126d,
Key_Dead_Belowcomma = 0x0100126e,
Key_Dead_Currency = 0x0100126f,
Key_Dead_a = 0x01001280,
Key_Dead_A = 0x01001281,
Key_Dead_e = 0x01001282,
Key_Dead_E = 0x01001283,
Key_Dead_i = 0x01001284,
Key_Dead_I = 0x01001285,
Key_Dead_o = 0x01001286,
Key_Dead_O = 0x01001287,
Key_Dead_u = 0x01001288,
Key_Dead_U = 0x01001289,
Key_Dead_Small_Schwa = 0x0100128a,
Key_Dead_Capital_Schwa = 0x0100128b,
Key_Dead_Greek = 0x0100128c,
Key_Dead_Lowline = 0x01001290,
Key_Dead_Aboveverticalline = 0x01001291,
Key_Dead_Belowverticalline = 0x01001292,
Key_Dead_Longsolidusoverlay = 0x01001293,
// multimedia/internet keys - ignored by default - see QKeyEvent c'tor
Key_Back = 0x01000061,
Key_Forward = 0x01000062,
Key_Stop = 0x01000063,
Key_Refresh = 0x01000064,
Key_VolumeDown = 0x01000070,
Key_VolumeMute = 0x01000071,
Key_VolumeUp = 0x01000072,
Key_BassBoost = 0x01000073,
Key_BassUp = 0x01000074,
Key_BassDown = 0x01000075,
Key_TrebleUp = 0x01000076,
Key_TrebleDown = 0x01000077,
Key_MediaPlay = 0x01000080,
Key_MediaStop = 0x01000081,
Key_MediaPrevious = 0x01000082,
Key_MediaNext = 0x01000083,
Key_MediaRecord = 0x01000084,
Key_MediaPause = 0x01000085,
Key_MediaTogglePlayPause = 0x01000086,
Key_HomePage = 0x01000090,
Key_Favorites = 0x01000091,
Key_Search = 0x01000092,
Key_Standby = 0x01000093,
Key_OpenUrl = 0x01000094,
Key_LaunchMail = 0x010000a0,
Key_LaunchMedia = 0x010000a1,
Key_Launch0 = 0x010000a2,
Key_Launch1 = 0x010000a3,
Key_Launch2 = 0x010000a4,
Key_Launch3 = 0x010000a5,
Key_Launch4 = 0x010000a6,
Key_Launch5 = 0x010000a7,
Key_Launch6 = 0x010000a8,
Key_Launch7 = 0x010000a9,
Key_Launch8 = 0x010000aa,
Key_Launch9 = 0x010000ab,
Key_LaunchA = 0x010000ac,
Key_LaunchB = 0x010000ad,
Key_LaunchC = 0x010000ae,
Key_LaunchD = 0x010000af,
Key_LaunchE = 0x010000b0,
Key_LaunchF = 0x010000b1,
Key_MonBrightnessUp = 0x010000b2,
Key_MonBrightnessDown = 0x010000b3,
Key_KeyboardLightOnOff = 0x010000b4,
Key_KeyboardBrightnessUp = 0x010000b5,
Key_KeyboardBrightnessDown = 0x010000b6,
Key_PowerOff = 0x010000b7,
Key_WakeUp = 0x010000b8,
Key_Eject = 0x010000b9,
Key_ScreenSaver = 0x010000ba,
Key_WWW = 0x010000bb,
Key_Memo = 0x010000bc,
Key_LightBulb = 0x010000bd,
Key_Shop = 0x010000be,
Key_History = 0x010000bf,
Key_AddFavorite = 0x010000c0,
Key_HotLinks = 0x010000c1,
Key_BrightnessAdjust = 0x010000c2,
Key_Finance = 0x010000c3,
Key_Community = 0x010000c4,
Key_AudioRewind = 0x010000c5, // Media rewind
Key_BackForward = 0x010000c6,
Key_ApplicationLeft = 0x010000c7,
Key_ApplicationRight = 0x010000c8,
Key_Book = 0x010000c9,
Key_CD = 0x010000ca,
Key_Calculator = 0x010000cb,
Key_ToDoList = 0x010000cc,
Key_ClearGrab = 0x010000cd,
Key_Close = 0x010000ce,
Key_Copy = 0x010000cf,
Key_Cut = 0x010000d0,
Key_Display = 0x010000d1, // Output switch key
Key_DOS = 0x010000d2,
Key_Documents = 0x010000d3,
Key_Excel = 0x010000d4,
Key_Explorer = 0x010000d5,
Key_Game = 0x010000d6,
Key_Go = 0x010000d7,
Key_iTouch = 0x010000d8,
Key_LogOff = 0x010000d9,
Key_Market = 0x010000da,
Key_Meeting = 0x010000db,
Key_MenuKB = 0x010000dc,
Key_MenuPB = 0x010000dd,
Key_MySites = 0x010000de,
Key_News = 0x010000df,
Key_OfficeHome = 0x010000e0,
Key_Option = 0x010000e1,
Key_Paste = 0x010000e2,
Key_Phone = 0x010000e3,
Key_Calendar = 0x010000e4,
Key_Reply = 0x010000e5,
Key_Reload = 0x010000e6,
Key_RotateWindows = 0x010000e7,
Key_RotationPB = 0x010000e8,
Key_RotationKB = 0x010000e9,
Key_Save = 0x010000ea,
Key_Send = 0x010000eb,
Key_Spell = 0x010000ec,
Key_SplitScreen = 0x010000ed,
Key_Support = 0x010000ee,
Key_TaskPane = 0x010000ef,
Key_Terminal = 0x010000f0,
Key_Tools = 0x010000f1,
Key_Travel = 0x010000f2,
Key_Video = 0x010000f3,
Key_Word = 0x010000f4,
Key_Xfer = 0x010000f5,
Key_ZoomIn = 0x010000f6,
Key_ZoomOut = 0x010000f7,
Key_Away = 0x010000f8,
Key_Messenger = 0x010000f9,
Key_WebCam = 0x010000fa,
Key_MailForward = 0x010000fb,
Key_Pictures = 0x010000fc,
Key_Music = 0x010000fd,
Key_Battery = 0x010000fe,
Key_Bluetooth = 0x010000ff,
Key_WLAN = 0x01000100,
Key_UWB = 0x01000101,
Key_AudioForward = 0x01000102, // Media fast-forward
Key_AudioRepeat = 0x01000103, // Toggle repeat mode
Key_AudioRandomPlay = 0x01000104, // Toggle shuffle mode
Key_Subtitle = 0x01000105,
Key_AudioCycleTrack = 0x01000106,
Key_Time = 0x01000107,
Key_Hibernate = 0x01000108,
Key_View = 0x01000109,
Key_TopMenu = 0x0100010a,
Key_PowerDown = 0x0100010b,
Key_Suspend = 0x0100010c,
Key_ContrastAdjust = 0x0100010d,
// We can remove these two for Qt 7:
Key_LaunchG = 0x0100010e,
Key_LaunchH = 0x0100010f,
Key_TouchpadToggle = 0x01000110,
Key_TouchpadOn = 0x01000111,
Key_TouchpadOff = 0x01000112,
Key_MicMute = 0x01000113,
Key_Red = 0x01000114,
Key_Green = 0x01000115,
Key_Yellow = 0x01000116,
Key_Blue = 0x01000117,
Key_ChannelUp = 0x01000118,
Key_ChannelDown = 0x01000119,
Key_Guide = 0x0100011a,
Key_Info = 0x0100011b,
Key_Settings = 0x0100011c,
Key_MicVolumeUp = 0x0100011d,
Key_MicVolumeDown = 0x0100011e,
Key_New = 0x01000120,
Key_Open = 0x01000121,
Key_Find = 0x01000122,
Key_Undo = 0x01000123,
Key_Redo = 0x01000124,
Key_MediaLast = 0x0100ffff,
// Keypad navigation keys
Key_Select = 0x01010000,
Key_Yes = 0x01010001,
Key_No = 0x01010002,
// Newer misc keys
Key_Cancel = 0x01020001,
Key_Printer = 0x01020002,
Key_Execute = 0x01020003,
Key_Sleep = 0x01020004,
Key_Play = 0x01020005, // Not the same as Key_MediaPlay
Key_Zoom = 0x01020006,
//Key_Jisho = 0x01020007, // IME: Dictionary key
//Key_Oyayubi_Left = 0x01020008, // IME: Left Oyayubi key
//Key_Oyayubi_Right = 0x01020009, // IME: Right Oyayubi key
Key_Exit = 0x0102000a,
// Device keys
Key_Context1 = 0x01100000,
Key_Context2 = 0x01100001,
Key_Context3 = 0x01100002,
Key_Context4 = 0x01100003,
Key_Call = 0x01100004, // set absolute state to in a call (do not toggle state)
Key_Hangup = 0x01100005, // set absolute state to hang up (do not toggle state)
Key_Flip = 0x01100006,
Key_ToggleCallHangup = 0x01100007, // a toggle key for answering, or hanging up, based on current call state
Key_VoiceDial = 0x01100008,
Key_LastNumberRedial = 0x01100009,
Key_Camera = 0x01100020,
Key_CameraFocus = 0x01100021,
// WARNING: Do not add any keys in the range 0x01200000 to 0xffffffff,
// as those bits are reserved for the Qt::KeyboardModifier enum below.
Key_unknown = 0x01ffffff
};
（4） KeyboardModifier 与 Modifier ，源码显示，这俩类的含义是一样的 ，后者是前者的简写形式 ：
//This enum describes the modifier keys.
//Note: On Windows Keyboards,
// Qt::MetaModifier and Qt::Key_Meta are mapped to the Windows key.
enum KeyboardModifier {
NoModifier = 0x00000000, //No modifier key is pressed.
ShiftModifier = 0x02000000, //A Shift key on the keyboard is pressed.
ControlModifier = 0x04000000, //A Ctrl key on the keyboard is pressed.
AltModifier = 0x08000000, //An Alt key on the keyboard is pressed.
MetaModifier = 0x10000000, //A Meta key on the keyboard is pressed.
KeypadModifier = 0x20000000, //A keypad button is pressed.
GroupSwitchModifier = 0x40000000, //X11 only (unless activated on Windows by a
//command line argument). A Mode_switch key on the keyboard is pressed.
// Do not extend the mask to include 0x01000000
KeyboardModifierMask = 0xfe000000
};
Q_DECLARE_FLAGS(KeyboardModifiers, KeyboardModifier)
Q_DECLARE_OPERATORS_FOR_FLAGS(KeyboardModifiers)
//shorter names for shortcuts。
//取值来自于上面的 KeyboardModifier枚举类，但枚举名变短了
// The use of all-caps identifiers has the potential for clashing with
// user-defined or third-party macros. More so when the identifiers are not
// "namespace"-prefixed. This is considered bad practice and is why
// KeypadModifier was not added to the Modifier enum.
// ### Qt 7: consider deprecating in favor of KeyboardModifier.
enum Modifier {
META = Qt::MetaModifier,
SHIFT = Qt::ShiftModifier,
CTRL = Qt::ControlModifier,
ALT = Qt::AltModifier,
MODIFIER_MASK = KeyboardModifierMask,
};
Q_DECLARE_FLAGS(Modifiers, Modifier)
Q_DECLARE_OPERATORS_FOR_FLAGS(Modifiers)
（5）
（6）
谢谢
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