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.
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Constant
|
Device object
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DIJOFS_BUTTON0 to DIJOFS_BUTTON31 or DIJOFS_BUTTON(n)
|
Button
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DIJOFS_POV(n)
|
Point-of-view indicator
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DIJOFS_RX
|
X-axis rotation
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DIJOFS_RY
|
Y-axis rotation
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DIJOFS_RZ
|
Z-axis rotation (rudder)
|
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DIJOFS_X
|
X-axis
|
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DIJOFS_Y
|
Y-axis
|
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DIJOFS_Z
|
Z-axis
|
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DIJOFS_SLIDER(n)
|
Slider axis
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