XInputGetState function (xinput.h)
Retrieves the current state of the specified controller.
DWORD XInputGetState( DWORD dwUserIndex, XINPUT_STATE *pState );
Index of the user's controller. Can be a value from 0 to 3. For information about how this value is determined and how the value maps to indicators on the controller, see Multiple Controllers.
Pointer to an XINPUT_STATE structure that receives the current state of the controller.
If the function succeeds, the return value is ERROR_SUCCESS.
If the controller is not connected, the return value is ERROR_DEVICE_NOT_CONNECTED.
If the function fails, the return value is an error code defined in Winerror.h. The function does not use SetLastError to set the calling thread's last-error code.
When XInputGetState is used to retrieve controller data, the left and right triggers are each reported separately. For legacy reasons, when DirectInput retrieves controller data, the two triggers share the same axis. The legacy behavior is noticeable in the current Game Device Control Panel, which uses DirectInput for controller state.
|DLL||Xinput1_4.dll; Xinput9_1_0.dll; Xinputuap.dll|