osvrexample.c

//gcc osvrexample.c -losvrClientKit

#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>

#include <osvr/ClientKit/ContextC.h>
#include <osvr/ClientKit/InterfaceC.h>
#include <osvr/ClientKit/InterfaceStateC.h>

int main() {

    OSVR_ClientContext osvrctx = osvrClientInit("com.osvr.osvrexample", 0);
    OSVR_ClientInterface head;
    osvrClientGetInterface(osvrctx, "/me/head", &head);

    while (1) {
        osvrClientUpdate(osvrctx);
        OSVR_TimeValue timestamp;

        OSVR_PoseState state;
        OSVR_ReturnCode ret = osvrGetPoseState(head, &timestamp, &state);
        if (OSVR_RETURN_SUCCESS != ret) {
            //No pose state;
            continue;
        }
        printf("Head Roation: %f %f %f %f; Head Position: %f %f %f\n", osvrQuatGetX(&state.rotation), osvrQuatGetY(&state.rotation), osvrQuatGetZ(&state.rotation), osvrQuatGetW(&state.rotation), osvrVec3GetX(&state.translation), osvrVec3GetY(&state.translation), osvrVec3GetZ(&state.translation));
        usleep(100 * 1000);
    }

    return 0;
}