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chrispaynter/CGKeyCode_Extension.swift

Forked from chipjarred/CGKeyCode_Extension.swift
Created June 24, 2021 08:09
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Revisions

  1. @chipjarred chipjarred revised this gist Mar 11, 2021. 1 changed file with 0 additions and 3 deletions.
    3 changes: 0 additions & 3 deletions CGKeyCode_Extension.swift
    View file
    Original file line number Diff line number Diff line change
    @@ -1,6 +1,5 @@
    import CoreGraphics

    // ---------------------------------------------
    extension CGKeyCode
    {
    /*
    @@ -145,12 +144,10 @@ extension CGKeyCode
    static let kVK_JIS_Eisu : CGKeyCode = 0x66
    static let kVK_JIS_Kana : CGKeyCode = 0x68

    // ---------------------------------------------
    var isModifier: Bool {
    return (.kVK_RightCommand...(.kVK_Function)).contains(self)
    }

    // ---------------------------------------------
    var baseModifier: CGKeyCode?
    {
    if (.kVK_Command...(.kVK_Control)).contains(self)
  2. @chipjarred chipjarred revised this gist Mar 11, 2021. 1 changed file with 163 additions and 163 deletions.
    326 changes: 163 additions & 163 deletions CGKeyCode_Extension.swift
    View file
    Original file line number Diff line number Diff line change
    @@ -3,172 +3,172 @@ import CoreGraphics
    // ---------------------------------------------
    extension CGKeyCode
    {
    /*
    * From Events.h in Carbon.framework
    * Summary:
    * Virtual keycodes
    *
    * Discussion:
    * These constants are the virtual keycodes defined originally in
    * Inside Mac Volume V, pg. V-191. They identify physical keys on a
    * keyboard. Those constants with "ANSI" in the name are labeled
    * according to the key position on an ANSI-standard US keyboard.
    * For example, kVK_ANSI_A indicates the virtual keycode for the key
    * with the letter 'A' in the US keyboard layout. Other keyboard
    * layouts may have the 'A' key label on a different physical key;
    * in this case, pressing 'A' will generate a different virtual
    * keycode.
    */
    static let kVK_ANSI_A : CGKeyCode = 0x00
    static let kVK_ANSI_S : CGKeyCode = 0x01
    static let kVK_ANSI_D : CGKeyCode = 0x02
    static let kVK_ANSI_F : CGKeyCode = 0x03
    static let kVK_ANSI_H : CGKeyCode = 0x04
    static let kVK_ANSI_G : CGKeyCode = 0x05
    static let kVK_ANSI_Z : CGKeyCode = 0x06
    static let kVK_ANSI_X : CGKeyCode = 0x07
    static let kVK_ANSI_C : CGKeyCode = 0x08
    static let kVK_ANSI_V : CGKeyCode = 0x09
    static let kVK_ANSI_B : CGKeyCode = 0x0B
    static let kVK_ANSI_Q : CGKeyCode = 0x0C
    static let kVK_ANSI_W : CGKeyCode = 0x0D
    static let kVK_ANSI_E : CGKeyCode = 0x0E
    static let kVK_ANSI_R : CGKeyCode = 0x0F
    static let kVK_ANSI_Y : CGKeyCode = 0x10
    static let kVK_ANSI_T : CGKeyCode = 0x11
    static let kVK_ANSI_1 : CGKeyCode = 0x12
    static let kVK_ANSI_2 : CGKeyCode = 0x13
    static let kVK_ANSI_3 : CGKeyCode = 0x14
    static let kVK_ANSI_4 : CGKeyCode = 0x15
    static let kVK_ANSI_6 : CGKeyCode = 0x16
    static let kVK_ANSI_5 : CGKeyCode = 0x17
    static let kVK_ANSI_Equal : CGKeyCode = 0x18
    static let kVK_ANSI_9 : CGKeyCode = 0x19
    static let kVK_ANSI_7 : CGKeyCode = 0x1A
    static let kVK_ANSI_Minus : CGKeyCode = 0x1B
    static let kVK_ANSI_8 : CGKeyCode = 0x1C
    static let kVK_ANSI_0 : CGKeyCode = 0x1D
    static let kVK_ANSI_RightBracket : CGKeyCode = 0x1E
    static let kVK_ANSI_O : CGKeyCode = 0x1F
    static let kVK_ANSI_U : CGKeyCode = 0x20
    static let kVK_ANSI_LeftBracket : CGKeyCode = 0x21
    static let kVK_ANSI_I : CGKeyCode = 0x22
    static let kVK_ANSI_P : CGKeyCode = 0x23
    static let kVK_ANSI_L : CGKeyCode = 0x25
    static let kVK_ANSI_J : CGKeyCode = 0x26
    static let kVK_ANSI_Quote : CGKeyCode = 0x27
    static let kVK_ANSI_K : CGKeyCode = 0x28
    static let kVK_ANSI_Semicolon : CGKeyCode = 0x29
    static let kVK_ANSI_Backslash : CGKeyCode = 0x2A
    static let kVK_ANSI_Comma : CGKeyCode = 0x2B
    static let kVK_ANSI_Slash : CGKeyCode = 0x2C
    static let kVK_ANSI_N : CGKeyCode = 0x2D
    static let kVK_ANSI_M : CGKeyCode = 0x2E
    static let kVK_ANSI_Period : CGKeyCode = 0x2F
    static let kVK_ANSI_Grave : CGKeyCode = 0x32
    static let kVK_ANSI_KeypadDecimal : CGKeyCode = 0x41
    static let kVK_ANSI_KeypadMultiply : CGKeyCode = 0x43
    static let kVK_ANSI_KeypadPlus : CGKeyCode = 0x45
    static let kVK_ANSI_KeypadClear : CGKeyCode = 0x47
    static let kVK_ANSI_KeypadDivide : CGKeyCode = 0x4B
    static let kVK_ANSI_KeypadEnter : CGKeyCode = 0x4C
    static let kVK_ANSI_KeypadMinus : CGKeyCode = 0x4E
    static let kVK_ANSI_KeypadEquals : CGKeyCode = 0x51
    static let kVK_ANSI_Keypad0 : CGKeyCode = 0x52
    static let kVK_ANSI_Keypad1 : CGKeyCode = 0x53
    static let kVK_ANSI_Keypad2 : CGKeyCode = 0x54
    static let kVK_ANSI_Keypad3 : CGKeyCode = 0x55
    static let kVK_ANSI_Keypad4 : CGKeyCode = 0x56
    static let kVK_ANSI_Keypad5 : CGKeyCode = 0x57
    static let kVK_ANSI_Keypad6 : CGKeyCode = 0x58
    static let kVK_ANSI_Keypad7 : CGKeyCode = 0x59
    static let kVK_ANSI_Keypad8 : CGKeyCode = 0x5B
    static let kVK_ANSI_Keypad9 : CGKeyCode = 0x5C
    /*
    * From Events.h in Carbon.framework
    * Summary:
    * Virtual keycodes
    *
    * Discussion:
    * These constants are the virtual keycodes defined originally in
    * Inside Mac Volume V, pg. V-191. They identify physical keys on a
    * keyboard. Those constants with "ANSI" in the name are labeled
    * according to the key position on an ANSI-standard US keyboard.
    * For example, kVK_ANSI_A indicates the virtual keycode for the key
    * with the letter 'A' in the US keyboard layout. Other keyboard
    * layouts may have the 'A' key label on a different physical key;
    * in this case, pressing 'A' will generate a different virtual
    * keycode.
    */
    static let kVK_ANSI_A : CGKeyCode = 0x00
    static let kVK_ANSI_S : CGKeyCode = 0x01
    static let kVK_ANSI_D : CGKeyCode = 0x02
    static let kVK_ANSI_F : CGKeyCode = 0x03
    static let kVK_ANSI_H : CGKeyCode = 0x04
    static let kVK_ANSI_G : CGKeyCode = 0x05
    static let kVK_ANSI_Z : CGKeyCode = 0x06
    static let kVK_ANSI_X : CGKeyCode = 0x07
    static let kVK_ANSI_C : CGKeyCode = 0x08
    static let kVK_ANSI_V : CGKeyCode = 0x09
    static let kVK_ANSI_B : CGKeyCode = 0x0B
    static let kVK_ANSI_Q : CGKeyCode = 0x0C
    static let kVK_ANSI_W : CGKeyCode = 0x0D
    static let kVK_ANSI_E : CGKeyCode = 0x0E
    static let kVK_ANSI_R : CGKeyCode = 0x0F
    static let kVK_ANSI_Y : CGKeyCode = 0x10
    static let kVK_ANSI_T : CGKeyCode = 0x11
    static let kVK_ANSI_1 : CGKeyCode = 0x12
    static let kVK_ANSI_2 : CGKeyCode = 0x13
    static let kVK_ANSI_3 : CGKeyCode = 0x14
    static let kVK_ANSI_4 : CGKeyCode = 0x15
    static let kVK_ANSI_6 : CGKeyCode = 0x16
    static let kVK_ANSI_5 : CGKeyCode = 0x17
    static let kVK_ANSI_Equal : CGKeyCode = 0x18
    static let kVK_ANSI_9 : CGKeyCode = 0x19
    static let kVK_ANSI_7 : CGKeyCode = 0x1A
    static let kVK_ANSI_Minus : CGKeyCode = 0x1B
    static let kVK_ANSI_8 : CGKeyCode = 0x1C
    static let kVK_ANSI_0 : CGKeyCode = 0x1D
    static let kVK_ANSI_RightBracket : CGKeyCode = 0x1E
    static let kVK_ANSI_O : CGKeyCode = 0x1F
    static let kVK_ANSI_U : CGKeyCode = 0x20
    static let kVK_ANSI_LeftBracket : CGKeyCode = 0x21
    static let kVK_ANSI_I : CGKeyCode = 0x22
    static let kVK_ANSI_P : CGKeyCode = 0x23
    static let kVK_ANSI_L : CGKeyCode = 0x25
    static let kVK_ANSI_J : CGKeyCode = 0x26
    static let kVK_ANSI_Quote : CGKeyCode = 0x27
    static let kVK_ANSI_K : CGKeyCode = 0x28
    static let kVK_ANSI_Semicolon : CGKeyCode = 0x29
    static let kVK_ANSI_Backslash : CGKeyCode = 0x2A
    static let kVK_ANSI_Comma : CGKeyCode = 0x2B
    static let kVK_ANSI_Slash : CGKeyCode = 0x2C
    static let kVK_ANSI_N : CGKeyCode = 0x2D
    static let kVK_ANSI_M : CGKeyCode = 0x2E
    static let kVK_ANSI_Period : CGKeyCode = 0x2F
    static let kVK_ANSI_Grave : CGKeyCode = 0x32
    static let kVK_ANSI_KeypadDecimal : CGKeyCode = 0x41
    static let kVK_ANSI_KeypadMultiply : CGKeyCode = 0x43
    static let kVK_ANSI_KeypadPlus : CGKeyCode = 0x45
    static let kVK_ANSI_KeypadClear : CGKeyCode = 0x47
    static let kVK_ANSI_KeypadDivide : CGKeyCode = 0x4B
    static let kVK_ANSI_KeypadEnter : CGKeyCode = 0x4C
    static let kVK_ANSI_KeypadMinus : CGKeyCode = 0x4E
    static let kVK_ANSI_KeypadEquals : CGKeyCode = 0x51
    static let kVK_ANSI_Keypad0 : CGKeyCode = 0x52
    static let kVK_ANSI_Keypad1 : CGKeyCode = 0x53
    static let kVK_ANSI_Keypad2 : CGKeyCode = 0x54
    static let kVK_ANSI_Keypad3 : CGKeyCode = 0x55
    static let kVK_ANSI_Keypad4 : CGKeyCode = 0x56
    static let kVK_ANSI_Keypad5 : CGKeyCode = 0x57
    static let kVK_ANSI_Keypad6 : CGKeyCode = 0x58
    static let kVK_ANSI_Keypad7 : CGKeyCode = 0x59
    static let kVK_ANSI_Keypad8 : CGKeyCode = 0x5B
    static let kVK_ANSI_Keypad9 : CGKeyCode = 0x5C

    // keycodes for keys that are independent of keyboard layout
    static let kVK_Return : CGKeyCode = 0x24
    static let kVK_Tab : CGKeyCode = 0x30
    static let kVK_Space : CGKeyCode = 0x31
    static let kVK_Delete : CGKeyCode = 0x33
    static let kVK_Escape : CGKeyCode = 0x35
    static let kVK_Command : CGKeyCode = 0x37
    static let kVK_Shift : CGKeyCode = 0x38
    static let kVK_CapsLock : CGKeyCode = 0x39
    static let kVK_Option : CGKeyCode = 0x3A
    static let kVK_Control : CGKeyCode = 0x3B
    static let kVK_RightCommand : CGKeyCode = 0x36 // Out of order
    static let kVK_RightShift : CGKeyCode = 0x3C
    static let kVK_RightOption : CGKeyCode = 0x3D
    static let kVK_RightControl : CGKeyCode = 0x3E
    static let kVK_Function : CGKeyCode = 0x3F
    static let kVK_F17 : CGKeyCode = 0x40
    static let kVK_VolumeUp : CGKeyCode = 0x48
    static let kVK_VolumeDown : CGKeyCode = 0x49
    static let kVK_Mute : CGKeyCode = 0x4A
    static let kVK_F18 : CGKeyCode = 0x4F
    static let kVK_F19 : CGKeyCode = 0x50
    static let kVK_F20 : CGKeyCode = 0x5A
    static let kVK_F5 : CGKeyCode = 0x60
    static let kVK_F6 : CGKeyCode = 0x61
    static let kVK_F7 : CGKeyCode = 0x62
    static let kVK_F3 : CGKeyCode = 0x63
    static let kVK_F8 : CGKeyCode = 0x64
    static let kVK_F9 : CGKeyCode = 0x65
    static let kVK_F11 : CGKeyCode = 0x67
    static let kVK_F13 : CGKeyCode = 0x69
    static let kVK_F16 : CGKeyCode = 0x6A
    static let kVK_F14 : CGKeyCode = 0x6B
    static let kVK_F10 : CGKeyCode = 0x6D
    static let kVK_F12 : CGKeyCode = 0x6F
    static let kVK_F15 : CGKeyCode = 0x71
    static let kVK_Help : CGKeyCode = 0x72
    static let kVK_Home : CGKeyCode = 0x73
    static let kVK_PageUp : CGKeyCode = 0x74
    static let kVK_ForwardDelete : CGKeyCode = 0x75
    static let kVK_F4 : CGKeyCode = 0x76
    static let kVK_End : CGKeyCode = 0x77
    static let kVK_F2 : CGKeyCode = 0x78
    static let kVK_PageDown : CGKeyCode = 0x79
    static let kVK_F1 : CGKeyCode = 0x7A
    static let kVK_LeftArrow : CGKeyCode = 0x7B
    static let kVK_RightArrow : CGKeyCode = 0x7C
    static let kVK_DownArrow : CGKeyCode = 0x7D
    static let kVK_UpArrow : CGKeyCode = 0x7E
    // keycodes for keys that are independent of keyboard layout
    static let kVK_Return : CGKeyCode = 0x24
    static let kVK_Tab : CGKeyCode = 0x30
    static let kVK_Space : CGKeyCode = 0x31
    static let kVK_Delete : CGKeyCode = 0x33
    static let kVK_Escape : CGKeyCode = 0x35
    static let kVK_Command : CGKeyCode = 0x37
    static let kVK_Shift : CGKeyCode = 0x38
    static let kVK_CapsLock : CGKeyCode = 0x39
    static let kVK_Option : CGKeyCode = 0x3A
    static let kVK_Control : CGKeyCode = 0x3B
    static let kVK_RightCommand : CGKeyCode = 0x36 // Out of order
    static let kVK_RightShift : CGKeyCode = 0x3C
    static let kVK_RightOption : CGKeyCode = 0x3D
    static let kVK_RightControl : CGKeyCode = 0x3E
    static let kVK_Function : CGKeyCode = 0x3F
    static let kVK_F17 : CGKeyCode = 0x40
    static let kVK_VolumeUp : CGKeyCode = 0x48
    static let kVK_VolumeDown : CGKeyCode = 0x49
    static let kVK_Mute : CGKeyCode = 0x4A
    static let kVK_F18 : CGKeyCode = 0x4F
    static let kVK_F19 : CGKeyCode = 0x50
    static let kVK_F20 : CGKeyCode = 0x5A
    static let kVK_F5 : CGKeyCode = 0x60
    static let kVK_F6 : CGKeyCode = 0x61
    static let kVK_F7 : CGKeyCode = 0x62
    static let kVK_F3 : CGKeyCode = 0x63
    static let kVK_F8 : CGKeyCode = 0x64
    static let kVK_F9 : CGKeyCode = 0x65
    static let kVK_F11 : CGKeyCode = 0x67
    static let kVK_F13 : CGKeyCode = 0x69
    static let kVK_F16 : CGKeyCode = 0x6A
    static let kVK_F14 : CGKeyCode = 0x6B
    static let kVK_F10 : CGKeyCode = 0x6D
    static let kVK_F12 : CGKeyCode = 0x6F
    static let kVK_F15 : CGKeyCode = 0x71
    static let kVK_Help : CGKeyCode = 0x72
    static let kVK_Home : CGKeyCode = 0x73
    static let kVK_PageUp : CGKeyCode = 0x74
    static let kVK_ForwardDelete : CGKeyCode = 0x75
    static let kVK_F4 : CGKeyCode = 0x76
    static let kVK_End : CGKeyCode = 0x77
    static let kVK_F2 : CGKeyCode = 0x78
    static let kVK_PageDown : CGKeyCode = 0x79
    static let kVK_F1 : CGKeyCode = 0x7A
    static let kVK_LeftArrow : CGKeyCode = 0x7B
    static let kVK_RightArrow : CGKeyCode = 0x7C
    static let kVK_DownArrow : CGKeyCode = 0x7D
    static let kVK_UpArrow : CGKeyCode = 0x7E

    // ISO keyboards only
    static let kVK_ISO_Section : CGKeyCode = 0x0A
    // ISO keyboards only
    static let kVK_ISO_Section : CGKeyCode = 0x0A

    // JIS keyboards only
    static let kVK_JIS_Yen : CGKeyCode = 0x5D
    static let kVK_JIS_Underscore : CGKeyCode = 0x5E
    static let kVK_JIS_KeypadComma : CGKeyCode = 0x5F
    static let kVK_JIS_Eisu : CGKeyCode = 0x66
    static let kVK_JIS_Kana : CGKeyCode = 0x68
    // ---------------------------------------------
    var isModifier: Bool {
    return (.kVK_RightCommand...(.kVK_Function)).contains(self)
    }
    // ---------------------------------------------
    var baseModifier: CGKeyCode?
    {
    if (.kVK_Command...(.kVK_Control)).contains(self)
    || self == .kVK_Function
    {
    return self
    }
    switch self
    {
    case .kVK_RightShift: return .kVK_Shift
    case .kVK_RightCommand: return .kVK_Command
    case .kVK_RightOption: return .kVK_Option
    case .kVK_RightControl: return .kVK_Control
    default: return nil
    }
    }
    // JIS keyboards only
    static let kVK_JIS_Yen : CGKeyCode = 0x5D
    static let kVK_JIS_Underscore : CGKeyCode = 0x5E
    static let kVK_JIS_KeypadComma : CGKeyCode = 0x5F
    static let kVK_JIS_Eisu : CGKeyCode = 0x66
    static let kVK_JIS_Kana : CGKeyCode = 0x68

    // ---------------------------------------------
    var isModifier: Bool {
    return (.kVK_RightCommand...(.kVK_Function)).contains(self)
    }

    // ---------------------------------------------
    var baseModifier: CGKeyCode?
    {
    if (.kVK_Command...(.kVK_Control)).contains(self)
    || self == .kVK_Function
    {
    return self
    }

    switch self
    {
    case .kVK_RightShift: return .kVK_Shift
    case .kVK_RightCommand: return .kVK_Command
    case .kVK_RightOption: return .kVK_Option
    case .kVK_RightControl: return .kVK_Control

    default: return nil
    }
    }

    var isPressed: Bool {
    CGEventSource.keyState(.combinedSessionState, key: self)
  3. @chipjarred chipjarred revised this gist Mar 11, 2021. No changes.
  4. @chipjarred chipjarred revised this gist Mar 11, 2021. 1 changed file with 6 additions and 4 deletions.
    10 changes: 6 additions & 4 deletions CGKeyCode_Extension.swift
    View file
    Original file line number Diff line number Diff line change
    @@ -135,20 +135,22 @@ extension CGKeyCode
    static let kVK_DownArrow : CGKeyCode = 0x7D
    static let kVK_UpArrow : CGKeyCode = 0x7E

    /* ISO keyboards only*/
    // ISO keyboards only
    static let kVK_ISO_Section : CGKeyCode = 0x0A

    /* JIS keyboards only*/
    // JIS keyboards only
    static let kVK_JIS_Yen : CGKeyCode = 0x5D
    static let kVK_JIS_Underscore : CGKeyCode = 0x5E
    static let kVK_JIS_KeypadComma : CGKeyCode = 0x5F
    static let kVK_JIS_Eisu : CGKeyCode = 0x66
    static let kVK_JIS_Kana : CGKeyCode = 0x68

    // ---------------------------------------------
    var isModifier: Bool {
    return (.kVK_RightCommand...(.kVK_Function)).contains(self)
    }

    // ---------------------------------------------
    var baseModifier: CGKeyCode?
    {
    if (.kVK_Command...(.kVK_Control)).contains(self)
    @@ -167,8 +169,8 @@ extension CGKeyCode
    default: return nil
    }
    }

    var isPressed: Bool {
    CGEventSource.keyState(.combinedSessionState, key: self)
    CGEventSource.keyState(.combinedSessionState, key: self)
    }
    }
  5. @chipjarred chipjarred created this gist Mar 11, 2021.
    174 changes: 174 additions & 0 deletions CGKeyCode_Extension.swift
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,174 @@
    import CoreGraphics

    // ---------------------------------------------
    extension CGKeyCode
    {
    /*
    * From Events.h in Carbon.framework
    * Summary:
    * Virtual keycodes
    *
    * Discussion:
    * These constants are the virtual keycodes defined originally in
    * Inside Mac Volume V, pg. V-191. They identify physical keys on a
    * keyboard. Those constants with "ANSI" in the name are labeled
    * according to the key position on an ANSI-standard US keyboard.
    * For example, kVK_ANSI_A indicates the virtual keycode for the key
    * with the letter 'A' in the US keyboard layout. Other keyboard
    * layouts may have the 'A' key label on a different physical key;
    * in this case, pressing 'A' will generate a different virtual
    * keycode.
    */
    static let kVK_ANSI_A : CGKeyCode = 0x00
    static let kVK_ANSI_S : CGKeyCode = 0x01
    static let kVK_ANSI_D : CGKeyCode = 0x02
    static let kVK_ANSI_F : CGKeyCode = 0x03
    static let kVK_ANSI_H : CGKeyCode = 0x04
    static let kVK_ANSI_G : CGKeyCode = 0x05
    static let kVK_ANSI_Z : CGKeyCode = 0x06
    static let kVK_ANSI_X : CGKeyCode = 0x07
    static let kVK_ANSI_C : CGKeyCode = 0x08
    static let kVK_ANSI_V : CGKeyCode = 0x09
    static let kVK_ANSI_B : CGKeyCode = 0x0B
    static let kVK_ANSI_Q : CGKeyCode = 0x0C
    static let kVK_ANSI_W : CGKeyCode = 0x0D
    static let kVK_ANSI_E : CGKeyCode = 0x0E
    static let kVK_ANSI_R : CGKeyCode = 0x0F
    static let kVK_ANSI_Y : CGKeyCode = 0x10
    static let kVK_ANSI_T : CGKeyCode = 0x11
    static let kVK_ANSI_1 : CGKeyCode = 0x12
    static let kVK_ANSI_2 : CGKeyCode = 0x13
    static let kVK_ANSI_3 : CGKeyCode = 0x14
    static let kVK_ANSI_4 : CGKeyCode = 0x15
    static let kVK_ANSI_6 : CGKeyCode = 0x16
    static let kVK_ANSI_5 : CGKeyCode = 0x17
    static let kVK_ANSI_Equal : CGKeyCode = 0x18
    static let kVK_ANSI_9 : CGKeyCode = 0x19
    static let kVK_ANSI_7 : CGKeyCode = 0x1A
    static let kVK_ANSI_Minus : CGKeyCode = 0x1B
    static let kVK_ANSI_8 : CGKeyCode = 0x1C
    static let kVK_ANSI_0 : CGKeyCode = 0x1D
    static let kVK_ANSI_RightBracket : CGKeyCode = 0x1E
    static let kVK_ANSI_O : CGKeyCode = 0x1F
    static let kVK_ANSI_U : CGKeyCode = 0x20
    static let kVK_ANSI_LeftBracket : CGKeyCode = 0x21
    static let kVK_ANSI_I : CGKeyCode = 0x22
    static let kVK_ANSI_P : CGKeyCode = 0x23
    static let kVK_ANSI_L : CGKeyCode = 0x25
    static let kVK_ANSI_J : CGKeyCode = 0x26
    static let kVK_ANSI_Quote : CGKeyCode = 0x27
    static let kVK_ANSI_K : CGKeyCode = 0x28
    static let kVK_ANSI_Semicolon : CGKeyCode = 0x29
    static let kVK_ANSI_Backslash : CGKeyCode = 0x2A
    static let kVK_ANSI_Comma : CGKeyCode = 0x2B
    static let kVK_ANSI_Slash : CGKeyCode = 0x2C
    static let kVK_ANSI_N : CGKeyCode = 0x2D
    static let kVK_ANSI_M : CGKeyCode = 0x2E
    static let kVK_ANSI_Period : CGKeyCode = 0x2F
    static let kVK_ANSI_Grave : CGKeyCode = 0x32
    static let kVK_ANSI_KeypadDecimal : CGKeyCode = 0x41
    static let kVK_ANSI_KeypadMultiply : CGKeyCode = 0x43
    static let kVK_ANSI_KeypadPlus : CGKeyCode = 0x45
    static let kVK_ANSI_KeypadClear : CGKeyCode = 0x47
    static let kVK_ANSI_KeypadDivide : CGKeyCode = 0x4B
    static let kVK_ANSI_KeypadEnter : CGKeyCode = 0x4C
    static let kVK_ANSI_KeypadMinus : CGKeyCode = 0x4E
    static let kVK_ANSI_KeypadEquals : CGKeyCode = 0x51
    static let kVK_ANSI_Keypad0 : CGKeyCode = 0x52
    static let kVK_ANSI_Keypad1 : CGKeyCode = 0x53
    static let kVK_ANSI_Keypad2 : CGKeyCode = 0x54
    static let kVK_ANSI_Keypad3 : CGKeyCode = 0x55
    static let kVK_ANSI_Keypad4 : CGKeyCode = 0x56
    static let kVK_ANSI_Keypad5 : CGKeyCode = 0x57
    static let kVK_ANSI_Keypad6 : CGKeyCode = 0x58
    static let kVK_ANSI_Keypad7 : CGKeyCode = 0x59
    static let kVK_ANSI_Keypad8 : CGKeyCode = 0x5B
    static let kVK_ANSI_Keypad9 : CGKeyCode = 0x5C

    // keycodes for keys that are independent of keyboard layout
    static let kVK_Return : CGKeyCode = 0x24
    static let kVK_Tab : CGKeyCode = 0x30
    static let kVK_Space : CGKeyCode = 0x31
    static let kVK_Delete : CGKeyCode = 0x33
    static let kVK_Escape : CGKeyCode = 0x35
    static let kVK_Command : CGKeyCode = 0x37
    static let kVK_Shift : CGKeyCode = 0x38
    static let kVK_CapsLock : CGKeyCode = 0x39
    static let kVK_Option : CGKeyCode = 0x3A
    static let kVK_Control : CGKeyCode = 0x3B
    static let kVK_RightCommand : CGKeyCode = 0x36 // Out of order
    static let kVK_RightShift : CGKeyCode = 0x3C
    static let kVK_RightOption : CGKeyCode = 0x3D
    static let kVK_RightControl : CGKeyCode = 0x3E
    static let kVK_Function : CGKeyCode = 0x3F
    static let kVK_F17 : CGKeyCode = 0x40
    static let kVK_VolumeUp : CGKeyCode = 0x48
    static let kVK_VolumeDown : CGKeyCode = 0x49
    static let kVK_Mute : CGKeyCode = 0x4A
    static let kVK_F18 : CGKeyCode = 0x4F
    static let kVK_F19 : CGKeyCode = 0x50
    static let kVK_F20 : CGKeyCode = 0x5A
    static let kVK_F5 : CGKeyCode = 0x60
    static let kVK_F6 : CGKeyCode = 0x61
    static let kVK_F7 : CGKeyCode = 0x62
    static let kVK_F3 : CGKeyCode = 0x63
    static let kVK_F8 : CGKeyCode = 0x64
    static let kVK_F9 : CGKeyCode = 0x65
    static let kVK_F11 : CGKeyCode = 0x67
    static let kVK_F13 : CGKeyCode = 0x69
    static let kVK_F16 : CGKeyCode = 0x6A
    static let kVK_F14 : CGKeyCode = 0x6B
    static let kVK_F10 : CGKeyCode = 0x6D
    static let kVK_F12 : CGKeyCode = 0x6F
    static let kVK_F15 : CGKeyCode = 0x71
    static let kVK_Help : CGKeyCode = 0x72
    static let kVK_Home : CGKeyCode = 0x73
    static let kVK_PageUp : CGKeyCode = 0x74
    static let kVK_ForwardDelete : CGKeyCode = 0x75
    static let kVK_F4 : CGKeyCode = 0x76
    static let kVK_End : CGKeyCode = 0x77
    static let kVK_F2 : CGKeyCode = 0x78
    static let kVK_PageDown : CGKeyCode = 0x79
    static let kVK_F1 : CGKeyCode = 0x7A
    static let kVK_LeftArrow : CGKeyCode = 0x7B
    static let kVK_RightArrow : CGKeyCode = 0x7C
    static let kVK_DownArrow : CGKeyCode = 0x7D
    static let kVK_UpArrow : CGKeyCode = 0x7E

    /* ISO keyboards only*/
    static let kVK_ISO_Section : CGKeyCode = 0x0A

    /* JIS keyboards only*/
    static let kVK_JIS_Yen : CGKeyCode = 0x5D
    static let kVK_JIS_Underscore : CGKeyCode = 0x5E
    static let kVK_JIS_KeypadComma : CGKeyCode = 0x5F
    static let kVK_JIS_Eisu : CGKeyCode = 0x66
    static let kVK_JIS_Kana : CGKeyCode = 0x68

    var isModifier: Bool {
    return (.kVK_RightCommand...(.kVK_Function)).contains(self)
    }

    var baseModifier: CGKeyCode?
    {
    if (.kVK_Command...(.kVK_Control)).contains(self)
    || self == .kVK_Function
    {
    return self
    }

    switch self
    {
    case .kVK_RightShift: return .kVK_Shift
    case .kVK_RightCommand: return .kVK_Command
    case .kVK_RightOption: return .kVK_Option
    case .kVK_RightControl: return .kVK_Control

    default: return nil
    }
    }

    var isPressed: Bool {
    CGEventSource.keyState(.combinedSessionState, key: self)
    }
    }