按键事件的顺序 PreviewKeyDown->KeyDown->PreviewTextInput->TextInput->PreviewKeyUp->KeyUp 如果在PreviewKeyDown/KeyDown中设置了Handled= true,那么TextInput不会触发，但是KeyUp事件不受影响
PreviewKeyDown，KeyDown，PreviewKeyUp，KeyUp事件中，参数KeyEventArgs中包括了 Key,SystemKey,ImeProcessedKey,DeadCharProcessedKey4个关键的key值。
Alt和F10是三个特殊的按键，他们用来激活Menu。当KeyEventArgs.Key 为Key.System，通过KeyEventArgs.SystemKey可以获取这三个按键。 当输入法为中文输入法时，KeyEventArgs.Key 为Key.ImeProcessed，通过KeyEventArgs.ImeProcessedKey可以获取这三个按键。
关于dead key详细的意义，请点击查看wikiDead key
- 获取某一个按键的状态 KeyStates Keyboard.GetKeyStates() e.g. Keyboard.GetKeyStates(Key.F4)
- 获取KeyDown的按钮，包括Alt,Ctrl,Shift(不分左右)三个 e.g. if(Keyboard.Modifiers == (ModifierKeys.Alt|ModifierKeys.Control )){}
System.Windows.Input.KeyStates的枚举
public enum KeyStates : byte
{
/// <summary>The key is not pressed.</summary>
None = 0x0,
/// <summary>The key is pressed.</summary>
Down = 0x1,
/// <summary>The key is toggled.</summary>
Toggled = 0x2
}
System.Windows.Input.ModifierKeys的枚举
public enum ModifierKeys
{
/// <summary>No modifiers are pressed. </summary>
None = 0x0,
/// <summary>The ALT key. </summary>
Alt = 0x1,
/// <summary>The CTRL key. </summary>
Control = 0x2,
/// <summary>The SHIFT key. </summary>
Shift = 0x4,
/// <summary>The Windows logo key.</summary>
Windows = 0x8
}
System.Windows.Input.Key 的枚举
public enum Key
{
/// <summary>No key pressed. </summary>
None = 0,
/// <summary>The Cancel key. </summary>
Cancel = 1,
/// <summary>The Backspace key. </summary>
Back = 2,
/// <summary>The Tab key. </summary>
Tab = 3,
/// <summary>The Linefeed key. </summary>
LineFeed = 4,
/// <summary>The Clear key. </summary>
Clear = 5,
/// <summary>The Return key. </summary>
Return = 6,
/// <summary>The Enter key. </summary>
Enter = 6,
/// <summary>The Pause key. </summary>
Pause = 7,
/// <summary>The Caps Lock key. </summary>
Capital = 8,
/// <summary>The Caps Lock key. </summary>
CapsLock = 8,
/// <summary>The IME Kana mode key. </summary>
KanaMode = 9,
/// <summary>The IME Hangul mode key. </summary>
HangulMode = 9,
/// <summary>The IME Junja mode key. </summary>
JunjaMode = 10,
/// <summary>The IME Final mode key. </summary>
FinalMode = 11,
/// <summary>The IME Hanja mode key. </summary>
HanjaMode = 12,
/// <summary>The IME Kanji mode key. </summary>
KanjiMode = 12,
/// <summary>The ESC key. </summary>
Escape = 13,
/// <summary>The IME Convert key. </summary>
ImeConvert = 14,
/// <summary>The IME NonConvert key. </summary>
ImeNonConvert = 0xF,
/// <summary>The IME Accept key. </summary>
ImeAccept = 0x10,
/// <summary>The IME Mode change request. </summary>
ImeModeChange = 17,
/// <summary>The Spacebar key. </summary>
Space = 18,
/// <summary>The Page Up key. </summary>
Prior = 19,
/// <summary>The Page Up key. </summary>
PageUp = 19,
/// <summary>The Page Down key. </summary>
Next = 20,
/// <summary>The Page Down key. </summary>
PageDown = 20,
/// <summary>The End key. </summary>
End = 21,
/// <summary>The Home key. </summary>
Home = 22,
/// <summary>The Left Arrow key. </summary>
Left = 23,
/// <summary>The Up Arrow key. </summary>
Up = 24,
/// <summary>The Right Arrow key. </summary>
Right = 25,
/// <summary>The Down Arrow key. </summary>
Down = 26,
/// <summary>The Select key. </summary>
Select = 27,
/// <summary>The Print key. </summary>
Print = 28,
/// <summary>The Execute key. </summary>
Execute = 29,
/// <summary>The Print Screen key. </summary>
Snapshot = 30,
/// <summary>The Print Screen key. </summary>
PrintScreen = 30,
/// <summary>The Insert key. </summary>
Insert = 0x1F,
/// <summary>The Delete key. </summary>
Delete = 0x20,
/// <summary>The Help key. </summary>
Help = 33,
/// <summary>The 0 (zero) key. </summary>
D0 = 34,
/// <summary>The 1 (one) key. </summary>
D1 = 35,
/// <summary>The 2 key. </summary>
D2 = 36,
/// <summary>The 3 key. </summary>
D3 = 37,
/// <summary>The 4 key. </summary>
D4 = 38,
/// <summary>The 5 key. </summary>
D5 = 39,
/// <summary>The 6 key. </summary>
D6 = 40,
/// <summary>The 7 key. </summary>
D7 = 41,
/// <summary>The 8 key. </summary>
D8 = 42,
/// <summary>The 9 key. </summary>
D9 = 43,
/// <summary>The A key. </summary>
A = 44,
/// <summary>The B key. </summary>
B = 45,
/// <summary>The C key. </summary>
C = 46,
/// <summary>The D key. </summary>
D = 47,
/// <summary>The E key. </summary>
E = 48,
/// <summary>The F key. </summary>
F = 49,
/// <summary>The G key. </summary>
G = 50,
/// <summary>The H key. </summary>
H = 51,
/// <summary>The I key. </summary>
I = 52,
/// <summary>The J key. </summary>
J = 53,
/// <summary>The K key. </summary>
K = 54,
/// <summary>The L key. </summary>
L = 55,
/// <summary>The M key. </summary>
M = 56,
/// <summary>The N key. </summary>
N = 57,
/// <summary>The O key. </summary>
O = 58,
/// <summary>The P key. </summary>
P = 59,
/// <summary>The Q key. </summary>
Q = 60,
/// <summary>The R key. </summary>
R = 61,
/// <summary>The S key. </summary>
S = 62,
/// <summary>The T key. </summary>
T = 0x3F,
/// <summary>The U key. </summary>
U = 0x40,
/// <summary>The V key. </summary>
V = 65,
/// <summary>The W key. </summary>
W = 66,
/// <summary>The X key. </summary>
X = 67,
/// <summary>The Y key. </summary>
Y = 68,
/// <summary>The Z key. </summary>
Z = 69,
/// <summary>The left Windows logo key (Microsoft Natural Keyboard). </summary>
LWin = 70,
/// <summary>The right Windows logo key (Microsoft Natural Keyboard). </summary>
RWin = 71,
/// <summary>The Application key (Microsoft Natural Keyboard). </summary>
Apps = 72,
/// <summary>The Computer Sleep key. </summary>
Sleep = 73,
/// <summary>The 0 key on the numeric keypad. </summary>
NumPad0 = 74,
/// <summary>The 1 key on the numeric keypad. </summary>
NumPad1 = 75,
/// <summary>The 2 key on the numeric keypad. </summary>
NumPad2 = 76,
/// <summary>The 3 key on the numeric keypad. </summary>
NumPad3 = 77,
/// <summary>The 4 key on the numeric keypad. </summary>
NumPad4 = 78,
/// <summary>The 5 key on the numeric keypad. </summary>
NumPad5 = 79,
/// <summary>The 6 key on the numeric keypad. </summary>
NumPad6 = 80,
/// <summary>The 7 key on the numeric keypad. </summary>
NumPad7 = 81,
/// <summary>The 8 key on the numeric keypad. </summary>
NumPad8 = 82,
/// <summary>The 9 key on the numeric keypad. </summary>
NumPad9 = 83,
/// <summary>The Multiply key. </summary>
Multiply = 84,
/// <summary>The Add key. </summary>
Add = 85,
/// <summary>The Separator key. </summary>
Separator = 86,
/// <summary>The Subtract key. </summary>
Subtract = 87,
/// <summary>The Decimal key. </summary>
Decimal = 88,
/// <summary>The Divide key. </summary>
Divide = 89,
/// <summary>The F1 key. </summary>
F1 = 90,
/// <summary>The F2 key. </summary>
F2 = 91,
/// <summary>The F3 key. </summary>
F3 = 92,
/// <summary>The F4 key. </summary>
F4 = 93,
/// <summary>The F5 key. </summary>
F5 = 94,
/// <summary>The F6 key. </summary>
F6 = 95,
/// <summary>The F7 key. </summary>
F7 = 96,
/// <summary>The F8 key. </summary>
F8 = 97,
/// <summary>The F9 key. </summary>
F9 = 98,
/// <summary>The F10 key. </summary>
F10 = 99,
/// <summary>The F11 key. </summary>
F11 = 100,
/// <summary>The F12 key. </summary>
F12 = 101,
/// <summary>The F13 key. </summary>
F13 = 102,
/// <summary>The F14 key. </summary>
F14 = 103,
/// <summary>The F15 key. </summary>
F15 = 104,
/// <summary>The F16 key. </summary>
F16 = 105,
/// <summary>The F17 key. </summary>
F17 = 106,
/// <summary>The F18 key. </summary>
F18 = 107,
/// <summary>The F19 key. </summary>
F19 = 108,
/// <summary>The F20 key. </summary>
F20 = 109,
/// <summary>The F21 key. </summary>
F21 = 110,
/// <summary>The F22 key. </summary>
F22 = 111,
/// <summary>The F23 key. </summary>
F23 = 112,
/// <summary>The F24 key. </summary>
F24 = 113,
/// <summary>The Num Lock key. </summary>
NumLock = 114,
/// <summary>The Scroll Lock key. </summary>
Scroll = 115,
/// <summary>The left Shift key. </summary>
LeftShift = 116,
/// <summary>The right Shift key. </summary>
RightShift = 117,
/// <summary>The left CTRL key. </summary>
LeftCtrl = 118,
/// <summary>The right CTRL key. </summary>
RightCtrl = 119,
/// <summary>The left ALT key. </summary>
LeftAlt = 120,
/// <summary>The right ALT key. </summary>
RightAlt = 121,
/// <summary>The Browser Back key. </summary>
BrowserBack = 122,
/// <summary>The Browser Forward key. </summary>
BrowserForward = 123,
/// <summary>The Browser Refresh key. </summary>
BrowserRefresh = 124,
/// <summary>The Browser Stop key. </summary>
BrowserStop = 125,
/// <summary>The Browser Search key. </summary>
BrowserSearch = 126,
/// <summary>The Browser Favorites key. </summary>
BrowserFavorites = 0x7F,
/// <summary>The Browser Home key. </summary>
BrowserHome = 0x80,
/// <summary>The Volume Mute key. </summary>
VolumeMute = 129,
/// <summary>The Volume Down key. </summary>
VolumeDown = 130,
/// <summary>The Volume Up key. </summary>
VolumeUp = 131,
/// <summary>The Media Next Track key. </summary>
MediaNextTrack = 132,
/// <summary>The Media Previous Track key. </summary>
MediaPreviousTrack = 133,
/// <summary>The Media Stop key. </summary>
MediaStop = 134,
/// <summary>The Media Play Pause key. </summary>
MediaPlayPause = 135,
/// <summary>The Launch Mail key. </summary>
LaunchMail = 136,
/// <summary>The Select Media key. </summary>
SelectMedia = 137,
/// <summary>The Launch Application1 key. </summary>
LaunchApplication1 = 138,
/// <summary>The Launch Application2 key. </summary>
LaunchApplication2 = 139,
/// <summary>The OEM 1 key. </summary>
Oem1 = 140,
/// <summary>The OEM Semicolon key. </summary>
OemSemicolon = 140,
/// <summary>The OEM Addition key. </summary>
OemPlus = 141,
/// <summary>The OEM Comma key. </summary>
OemComma = 142,
/// <summary>The OEM Minus key. </summary>
OemMinus = 143,
/// <summary>The OEM Period key. </summary>
OemPeriod = 144,
/// <summary>The OEM 2 key. </summary>
Oem2 = 145,
/// <summary>The OEM Question key. </summary>
OemQuestion = 145,
/// <summary>The OEM 3 key. </summary>
Oem3 = 146,
/// <summary>The OEM Tilde key. </summary>
OemTilde = 146,
/// <summary>The ABNT_C1 (Brazilian) key. </summary>
AbntC1 = 147,
/// <summary>The ABNT_C2 (Brazilian) key. </summary>
AbntC2 = 148,
/// <summary>The OEM 4 key. </summary>
Oem4 = 149,
/// <summary>The OEM Open Brackets key. </summary>
OemOpenBrackets = 149,
/// <summary>The OEM 5 key. </summary>
Oem5 = 150,
/// <summary>The OEM Pipe key. </summary>
OemPipe = 150,
/// <summary>The OEM 6 key. </summary>
Oem6 = 151,
/// <summary>The OEM Close Brackets key. </summary>
OemCloseBrackets = 151,
/// <summary>The OEM 7 key. </summary>
Oem7 = 152,
/// <summary>The OEM Quotes key. </summary>
OemQuotes = 152,
/// <summary>The OEM 8 key. </summary>
Oem8 = 153,
/// <summary>The OEM 102 key. </summary>
Oem102 = 154,
/// <summary>The OEM Backslash key. </summary>
OemBackslash = 154,
/// <summary>A special key masking the real key being processed by an IME. </summary>
ImeProcessed = 155,
/// <summary>A special key masking the real key being processed as a system key. </summary>
System = 156,
/// <summary>The OEM ATTN key. </summary>
OemAttn = 157,
/// <summary>The DBE_ALPHANUMERIC key. </summary>
DbeAlphanumeric = 157,
/// <summary>The OEM FINISH key. </summary>
OemFinish = 158,
/// <summary>The DBE_KATAKANA key. </summary>
DbeKatakana = 158,
/// <summary>The OEM COPY key. </summary>
OemCopy = 159,
/// <summary>The DBE_HIRAGANA key. </summary>
DbeHiragana = 159,
/// <summary>The OEM AUTO key. </summary>
OemAuto = 160,
/// <summary>The DBE_SBCSCHAR key. </summary>
DbeSbcsChar = 160,
/// <summary>The OEM ENLW key. </summary>
OemEnlw = 161,
/// <summary>The DBE_DBCSCHAR key. </summary>
DbeDbcsChar = 161,
/// <summary>The OEM BACKTAB key. </summary>
OemBackTab = 162,
/// <summary>The DBE_ROMAN key. </summary>
DbeRoman = 162,
/// <summary>The ATTN key. </summary>
Attn = 163,
/// <summary>The DBE_NOROMAN key. </summary>
DbeNoRoman = 163,
/// <summary>The CRSEL key. </summary>
CrSel = 164,
/// <summary>The DBE_ENTERWORDREGISTERMODE key. </summary>
DbeEnterWordRegisterMode = 164,
/// <summary>The EXSEL key. </summary>
ExSel = 165,
/// <summary>The DBE_ENTERIMECONFIGMODE key. </summary>
DbeEnterImeConfigureMode = 165,
/// <summary>The ERASE EOF key. </summary>
EraseEof = 166,
/// <summary>The DBE_FLUSHSTRING key. </summary>
DbeFlushString = 166,
/// <summary>The PLAY key. </summary>
Play = 167,
/// <summary>The DBE_CODEINPUT key. </summary>
DbeCodeInput = 167,
/// <summary>The ZOOM key. </summary>
Zoom = 168,
/// <summary>The DBE_NOCODEINPUT key. </summary>
DbeNoCodeInput = 168,
/// <summary>A constant reserved for future use. </summary>
NoName = 169,
/// <summary>The DBE_DETERMINESTRING key. </summary>
DbeDetermineString = 169,
/// <summary>The PA1 key. </summary>
Pa1 = 170,
/// <summary>The DBE_ENTERDLGCONVERSIONMODE key. </summary>
DbeEnterDialogConversionMode = 170,
/// <summary>The OEM Clear key. </summary>
OemClear = 171,
/// <summary>The key is used with another key to create a single combined character.</summary>
DeadCharProcessed = 172
}
