export enum KeyboardModifier {
    NoModifier = 0x00000000,
    ShiftModifier = 0x02000000,
    ControlModifier = 0x04000000,
    AltModifier = 0x08000000,
    MetaModifier = 0x10000000,
    KeypadModifier = 0x20000000,
    GroupSwitchModifier = 0x40000000,
}