윈도우 API 중 GetAsyncKeyState() 함수는 조사할 키를 전달받아 키의 현재 상태를 리턴하는데 키가 눌러져 있다면 최상위 비트(MSB)를 1로 만들고 Caps Lock, Scroll Lock 같은 토글키가 On 상태이면 최하위 비트(LSB)를 1로 만든다. 그래서 특정 키의 눌러짐 상태를 조사하고 싶다면 이 함수를 호출한 후 최상위 비트만 살펴보면 된다.
또한, 연속적으로 키가 눌려졌는지(터보키)를 알 수 있다.
함수가 호출될 당시, 해당 키보드의 키가 눌러졌는지 확인할 수 있습니다. 또는 이전 프레임의 GetAsyncKeyState() 함수가 호출된 이후, 현재 프레임의 GetAsyncKeyState 함수가 호출될 사이에 키가 눌러졌었는지 여부도 파악이 가능합니다.
=> GetAsyncKeyState() 함수는,
키가 처음 입력되었을 때는 0x8001비트,
연속으로 입력되고있을때는 0x8000비트의 값을 1로 만듭니다.
이들의 특성을 이용하면 일종의 TurboKey 설정 여부가 가능합니다.
결론은,
터보키 기능을 이용할 경우
if( GetAsyncKeyState( VK_LEFT ) == TRUE ) {
//왼쪽 키에 대한 처리
}
|
터보키 이용 안할 경우는
if( GetAsyncKeyState( VK_LEFT ) & 0x0001 == TRUE ) {
//왼쪽 키에 대한 처리
}
|
참고로 마우스 버튼 경우도,
GetAsyncKeyState( VK_LBUTTON ) 식으로 사용가능합니다만 이는 마우스의 물리적인 데이터값에 대한 결과 임을 알고 계셔야 합니다.무슨 말이냐면, 만약 마우스를 왼손잡이 또는 오른손잡이용으로 설정했을 경우, 마우스 1번 버튼이 달라질 수 있겠지만GetAsyncKeyState는 항상 1번이 실제 마우스의 왼쪽 버튼이라는 것이죠.
<Virtual Key Code>
VK_LBUTTON (0x01)Left mouse button
VK_RBUTTON (0x02)Right mouse button
VK_CANCEL (0x03)Control-break processing
VK_MBUTTON (0x04)Middle mouse button (three-button mouse)
VK_XBUTTON1 (0x05)Windows 2000/XP: X1 mouse button
VK_XBUTTON2 (0x06)Windows 2000/XP: X2 mouse button
- (0x07)Undefined
VK_BACK (0x08)BACKSPACE key
VK_TAB (0x09)TAB key
- (0x0A-0B)Reserved
VK_CLEAR (0x0C)CLEAR key
VK_RETURN (0x0D)ENTER key
- (0x0E-0F)Undefined
VK_SHIFT (0x10)SHIFT key
VK_CONTROL (0x11)CTRL key
VK_MENU (0x12)ALT key
VK_PAUSE (0x13)PAUSE key
VK_CAPITAL (0x14)CAPS LOCK key
VK_KANA (0x15)Input Method Editor (IME) Kana mode
VK_HANGUEL (0x15)IME Hanguel mode (maintained for compatibility; use:Track('ctl00_LibFrame_MainContent_ctl00|ctl00_LibFrame_MainContent_ctl01',this);" href="http://msdn.microsoft.com/en-us/library/ms645540(VS.85).aspx">VK_HANGUL)
VK_HANGUL (0x15)IME Hangul mode
- (0x16)Undefined
VK_JUNJA (0x17)IME Junja mode
VK_FINAL (0x18)IME final mode
VK_HANJA (0x19)IME Hanja mode
VK_KANJI (0x19)IME Kanji mode
- (0x1A)Undefined
VK_ESCAPE (0x1B)ESC key
VK_CONVERT (0x1C)IME convert
VK_NONCONVERT (0x1D)IME nonconvert
VK_ACCEPT (0x1E)IME accept
VK_MODECHANGE (0x1F)IME mode change request
VK_SPACE (0x20)SPACEBAR
VK_PRIOR (0x21)PAGE UP key
VK_NEXT (0x22)PAGE DOWN key
VK_END (0x23)END key
VK_HOME (0x24)HOME key
VK_LEFT (0x25)LEFT ARROW key
VK_UP (0x26)UP ARROW key
VK_RIGHT (0x27)RIGHT ARROW key
VK_DOWN (0x28)DOWN ARROW key
VK_SELECT (0x29)SELECT key
VK_PRINT (0x2A)PRINT key
VK_EXECUTE (0x2B)EXECUTE key
VK_SNAPSHOT (0x2C)PRINT SCREEN key
VK_INSERT (0x2D)INS key
VK_DELETE (0x2E)DEL key
VK_HELP (0x2F)HELP key
(0x30)0 key
(0x31)1 key
(0x32)2 key
(0x33)3 key
(0x34)4 key
(0x35)5 key
(0x36)6 key
(0x37)7 key
(0x38)8 key
(0x39)9 key
- (0x3A-40)Undefined
(0x41)A key
(0x42)B key
(0x43)C key
(0x44)D key
(0x45)E key
(0x46)F key
(0x47)G key
(0x48)H key
(0x49)I key
(0x4A)J key
(0x4B)K key
(0x4C)L key
(0x4D)M key
(0x4E)N key
(0x4F)O key
(0x50)P key
(0x51)Q key
(0x52)R key
(0x53)S key
(0x54)T key
(0x55)U key
(0x56)V key
(0x57)W key
(0x58)X key
(0x59)Y key
(0x5A)Z key
VK_LWIN (0x5B)Left Windows key (Microsoft Natural keyboard)
VK_RWIN (0x5C)Right Windows key (Natural keyboard)
VK_APPS (0x5D)Applications key (Natural keyboard)
- (0x5E)Reserved
VK_SLEEP (0x5F)Computer Sleep key
VK_NUMPAD0 (0x60)Numeric keypad 0 key
VK_NUMPAD1 (0x61)Numeric keypad 1 key
VK_NUMPAD2 (0x62)Numeric keypad 2 key
VK_NUMPAD3 (0x63)Numeric keypad 3 key
VK_NUMPAD4 (0x64)Numeric keypad 4 key
VK_NUMPAD5 (0x65)Numeric keypad 5 key
VK_NUMPAD6 (0x66)Numeric keypad 6 key
VK_NUMPAD7 (0x67)Numeric keypad 7 key
VK_NUMPAD8 (0x68)Numeric keypad 8 key
VK_NUMPAD9 (0x69)Numeric keypad 9 key
VK_MULTIPLY (0x6A)Multiply key
VK_ADD (0x6B)Add key
VK_SEPARATOR (0x6C)Separator key
VK_SUBTRACT (0x6D)Subtract key
VK_DECIMAL (0x6E)Decimal key
VK_DIVIDE (0x6F)Divide key
VK_F1 (0x70)F1 key
VK_F2 (0x71)F2 key
VK_F3 (0x72)F3 key
VK_F4 (0x73)F4 key
VK_F5 (0x74)F5 key
VK_F6 (0x75)F6 key
VK_F7 (0x76)F7 key
VK_F8 (0x77)F8 key
VK_F9 (0x78)F9 key
VK_F10 (0x79)F10 key
VK_F11 (0x7A)F11 key
VK_F12 (0x7B)F12 key
VK_F13 (0x7C)F13 key
VK_F14 (0x7D)F14 key
VK_F15 (0x7E)F15 key
VK_F16 (0x7F)F16 key
VK_F17 (0x80H)F17 key
VK_F18 (0x81H)F18 key
VK_F19 (0x82H)F19 key
VK_F20 (0x83H)F20 key
VK_F21 (0x84H)F21 key
VK_F22 (0x85H)F22 key
VK_F23 (0x86H)F23 key
VK_F24 (0x87H)F24 key
- (0x88-8F)Unassigned
VK_NUMLOCK (0x90)NUM LOCK key
VK_SCROLL (0x91)SCROLL LOCK key
(0x92-96)OEM specific
- (0x97-9F)Unassigned
VK_LSHIFT (0xA0)Left SHIFT key
VK_RSHIFT (0xA1)Right SHIFT key
VK_LCONTROL (0xA2)Left CONTROL key
VK_RCONTROL (0xA3)Right CONTROL key
VK_LMENU (0xA4)Left MENU key
VK_RMENU (0xA5)Right MENU key
VK_BROWSER_BACK (0xA6)Windows 2000/XP: Browser Back key
VK_BROWSER_FORWARD (0xA7)Windows 2000/XP: Browser Forward key
VK_BROWSER_REFRESH (0xA8)Windows 2000/XP: Browser Refresh key
VK_BROWSER_STOP (0xA9)Windows 2000/XP: Browser Stop key
VK_BROWSER_SEARCH (0xAA)Windows 2000/XP: Browser Search key
VK_BROWSER_FAVORITES (0xAB)Windows 2000/XP: Browser Favorites key
VK_BROWSER_HOME (0xAC)Windows 2000/XP: Browser Start and Home key
VK_VOLUME_MUTE (0xAD)Windows 2000/XP: Volume Mute key
VK_VOLUME_DOWN (0xAE)Windows 2000/XP: Volume Down key
VK_VOLUME_UP (0xAF)Windows 2000/XP: Volume Up key
VK_MEDIA_NEXT_TRACK (0xB0)Windows 2000/XP: Next Track key
VK_MEDIA_PREV_TRACK (0xB1)Windows 2000/XP: Previous Track key
VK_MEDIA_STOP (0xB2)Windows 2000/XP: Stop Media key
VK_MEDIA_PLAY_PAUSE (0xB3)Windows 2000/XP: Play/Pause Media key
VK_LAUNCH_MAIL (0xB4)Windows 2000/XP: Start Mail key
VK_LAUNCH_MEDIA_SELECT (0xB5)Windows 2000/XP: Select Media key
VK_LAUNCH_APP1 (0xB6)Windows 2000/XP: Start Application 1 key
VK_LAUNCH_APP2 (0xB7)Windows 2000/XP: Start Application 2 key
- (0xB8-B9)Reserved
VK_OEM_1 (0xBA)Used for miscellaneous characters; it can vary by keyboard.Windows 2000/XP: For the US standard keyboard, the ';:' key
VK_OEM_PLUS (0xBB)Windows 2000/XP: For any country/region, the '+' key
VK_OEM_COMMA (0xBC)Windows 2000/XP: For any country/region, the ',' key
VK_OEM_MINUS (0xBD)Windows 2000/XP: For any country/region, the '-' key
VK_OEM_PERIOD (0xBE)Windows 2000/XP: For any country/region, the '.' key
VK_OEM_2 (0xBF)Used for miscellaneous characters; it can vary by keyboard.Windows 2000/XP: For the US standard keyboard, the '/?' key
VK_OEM_3 (0xC0)Used for miscellaneous characters; it can vary by keyboard.Windows 2000/XP: For the US standard keyboard, the '`~' key
- (0xC1-D7)Reserved
- (0xD8-DA)Unassigned
VK_OEM_4 (0xDB)Used for miscellaneous characters; it can vary by keyboard.Windows 2000/XP: For the US standard keyboard, the '[{' key
VK_OEM_5 (0xDC)Used for miscellaneous characters; it can vary by keyboard.Windows 2000/XP: For the US standard keyboard, the '\|' key
VK_OEM_6 (0xDD)Used for miscellaneous characters; it can vary by keyboard.Windows 2000/XP: For the US standard keyboard, the ']}' key
VK_OEM_7 (0xDE)Used for miscellaneous characters; it can vary by keyboard.Windows 2000/XP: For the US standard keyboard, the 'single-quote/double-quote' key
VK_OEM_8 (0xDF)Used for miscellaneous characters; it can vary by keyboard.
- (0xE0)Reserved
(0xE1)OEM specific
VK_OEM_102 (0xE2)Windows 2000/XP: Either the angle bracket key or the backslash key on the RT 102-key keyboard
(0xE3-E4)OEM specific
VK_PROCESSKEY (0xE5)Windows 95/98/Me, Windows NT 4.0, Windows 2000/XP: IME PROCESS key
(0xE6)OEM specific
VK_PACKET (0xE7)Windows 2000/XP: Used to pass Unicode characters as if they were keystrokes. The VK_PACKET key is the low word of a 32-bit Virtual Key value used for non-keyboard input methods. For more information, see Remark in:Track('ctl00_LibFrame_MainContent_ctl00|ctl00_LibFrame_MainContent_ctl02',this);" href="http://msdn.microsoft.com/en-us/library/ms646271(VS.85).aspx">KEYBDINPUT,:Track('ctl00_LibFrame_MainContent_ctl00|ctl00_LibFrame_MainContent_ctl03',this);" href="http://msdn.microsoft.com/en-us/library/ms646310(VS.85).aspx">SendInput,:Track('ctl00_LibFrame_MainContent_ctl00|ctl00_LibFrame_MainContent_ctl04',this);" href="http://msdn.microsoft.com/en-us/library/ms646280(VS.85).aspx">WM_KEYDOWN, and:Track('ctl00_LibFrame_MainContent_ctl00|ctl00_LibFrame_MainContent_ctl05',this);" href="http://msdn.microsoft.com/en-us/library/ms646281(VS.85).aspx">WM_KEYUP
- (0xE8)Unassigned
(0xE9-F5)OEM specific
VK_ATTN (0xF6)Attn key
VK_CRSEL (0xF7)CrSel key
VK_EXSEL (0xF8)ExSel key
VK_EREOF (0xF9)Erase EOF key
VK_PLAY (0xFA)Play key
VK_ZOOM (0xFB)Zoom key
VK_NONAME (0xFC)Reserved
VK_PA1 (0xFD)PA1 key
VK_OEM_CLEAR (0xFE)Clear key |
-참고 : MSDN -
이렇게도 사용한다.
if( GetAsyncKeyState( VK_UP ) < 0 )
{
쏼랴쏼랴~;
}
[출처] GetAsyncKeyState |작성자 Hermet
