Function lv_obj_set_transform 

pub unsafe extern "C" fn lv_obj_set_transform(
    obj: *mut lv_obj_t,
    matrix: *const lv_matrix_t,
)

Set the transform matrix of an object @param obj pointer to an object @param matrix pointer to a matrix to set @note LV_DRAW_TRANSFORM_USE_MATRIX needs to be enabled.