Help! How to hook that void fun.?

void (*FinishAllQuests)(void *instance);





FinishAllQuests = (void(*)(void*)) getAbsoluteAddress(targetLibName, 0x7E6EE0);

void (*old_Update)(void *instance);
void Update(void *instance) {
    if(instance!=nullptr) {
        if(Test) {
            FinishAllQuests(instance);
            Test=false;
        }
    }
    old_Update(instance);
}





HOOK("0xOFFSET", Update, old_Update);

int Void hooking (with update offset) =
bool VoidHookingint;

void (*Anyname)(void *instance,int value);
void (*_Voidinthooking)(void *instance);
void Voidinthooking(void *instance) {
    if (instance != NULL) {
        if (VoidHookingFloat) {
            Anyname(instance, 999); //you can replace it with any number you want
            }
            }
            return _Voidinthooking(instance);
            }

HOOK_LIB("libname","0xUpdateOffset",Voidinthooking,_Voidinthooking);
    
 Anyname = (void (*)(void *, int))getAbsoluteAddress(targetLibName,0xYourVoidOffset);
 
 
OBFUSCATE("0_Toggle_hackname"), 

 case 0:
        VoidHookingint = boolean;
                            break;