# lv_check_obj.h (/api/public/debugging/lv_check_obj_h)
Macros [#macros]
LV_CHECK_OBJ_CLASS [#lv_check_obj_class]
```c title=" " lineNumbers=1
#define LV_CHECK_OBJ_CLASS(obj, cls, action) \
LV_CHECK_ARG(obj != NULL, action);
```
LV_CHECK_OBJ_VALID [#lv_check_obj_valid]
```c title=" " lineNumbers=1
#define LV_CHECK_OBJ_VALID(obj, cls, action) \
LV_CHECK_OBJ_CLASS(obj, cls, action);
```
LV_CHECK_OBJ [#lv_check_obj]
```c title=" " lineNumbers=1
#define LV_CHECK_OBJ(obj, cls, action) \
LV_CHECK_OBJ_VALID(obj, cls, action)
```
Dependencies [#dependencies]