Platform SDK: DirectX

Joystick Device Constants

Joystick device constants represent offsets within a joystick device's data packet, the DIJOYSTATE structure. The data at a given offset is associated with a device object; that is, a button or axis. Typically, these values are used in the dwOfs member of the DIDEVICEOBJECTDATA, DIOBJECTDATAFORMAT or DIDEVICEOBJECTINSTANCE structures.

The following macros return a constant indicating the offset of the data for a particular button or axis relative to the beginning of the DIJOYSTATE structure:

DIJOFS_BUTTON0 to DIJOFS_BUTTON31 or DIJOFS_BUTTON(n) A button.
DIJOFS_POV(n) A point-of-view indicator.
DIJOFS_RX The x-axis rotation.
DIJOFS_RY The y-axis rotation.
DIJOFS_RZ The z-axis rotation (rudder).
DIJOFS_X The x-axis.
DIJOFS_Y The y-axis.
DIJOFS_Z The z-axis.
DIJOFS_SLIDER(n) A slider axis.