DEVELOPMENT.md

Development

Classes

• VirtualHIDRoot
  • VirtualHIDRoot_UserClient
    • VirtualHIDKeyboard
    • VirtualHIDPointing

About LED state

The VirtualHIDKeyboard post a HID report with {kHIDPage_LEDs, kHIDUsage_LED_CapsLock} to user space when the VirtualHIDKeyboard's LED state is manipuated.

You can detect the LED state changes by the HID report.

Restrictions

We should not add virtual pointing device until user really want to add it

macOS UI changes the scroll bar design if a mouse device (not trackpad) is connected. The virtual pointing device affect this behavior.