# hid.h
Self-explanatory lol

## BASE

### `Result hidInit(void);`
Inilialize HID.

### `void hidExit(void);`
Exit HID.

### `void hidScanInput(void);`
Check the status of each button. Must be called before hidKeys*().

## BUTTONS

### `u32 hidKeys*(void);`
Test a certain condition and return a u32 containing the boolean state for each
button. (TODO visual)
Use `hidKey*() & KEY_*` to have the boolean value for a specific button.
- `u32 hidKeysHeld();`
True if the key is currently pressed.
- `u32 hidKeysDown();`
True if the key has just been pressed. (TODO not only once?)
- `u32 hidKeysDownRepeat();`
TODO
- `u32 hidKeysUp();`
True if the key has just been released.

### KEY_*
Simple buttons:
- KEY_{A|B|X|Y}: A/B/X/Y buttons.
- KEY_{SELECT|START}: Select/Start buttons.
- KEY_{L|R}: L/R buttons.
Directions:
- KEY_D{RIGHT|LEFT|UP|DOWN}: D-Pad directions.
- KEY_CPAD_{RIGHT|LEFT|UP|DOWN}: Circle Pad directions.
- KEY_{UP|DOWN|LEFT|RIGHT}: Catch Circle Pad and D-Pad at the same time.
New 3DS only:
- KEY_{ZL|ZR}: ZL/ZR buttons (New 3DS only)
- KEY_CSTICK{RIGHT|LEFT|UP|DOWN}: C-Stick directions (New 3DS only)
Uh?
- KEY_TOUCH: (Not implemented? TODO)

## TOUCH SCREEN

### `void hidTouchRead(touchPosition *dest);`
Read the current touch position.

### `typedef touchPosition;`
```c++
typedef struct {
    u16 px;
    u16 py;
} touchPosition;
```

## TOUCH SCREEN

### `void hidCircleRead(circlePosition *dest);`
Read the current circle pad position.

### `typedef circlePosition;`
```c++
typedef struct {
    u16 dx;
    u16 dy;
} circlePosition;
```