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Invoking CitizenFX Native Functions Safely with Custom NativeContext Wrapper [v2.4 Technical Discussion]

fivem_native_coder
Lua Scripter
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Join Date: Jun 2019
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1 months ago ยท Jul 3, 2026 2:03 AM
#1

How to execute GTA V native functions inside FiveM CitizenFX runtime:

CPP
class NativeContext {
    uint64_t* m_pReturn;
    uint32_t m_nArgCount;
    uint64_t* m_pArgs;
public:
    template<typename T> void Push(T val) { *(T*)(m_pArgs + m_nArgCount++) = val; }
    template<typename T> T GetResult() { return *(T*)m_pReturn; }
};

// Calling ENTITY::GET_ENTITY_COORDS
Vector3 GetEntityCoords(Entity entity) {
    NativeContext ctx;
    ctx.Push(entity);
    ctx.Push(true); // alive flag
    InvokeNative(0x3FEF770D40960D5A, &ctx);
    return ctx.GetResult<Vector3>();
}
vtable_slayer
Senior Reverser
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1 months ago ยท Jul 3, 2026 7:31 AM
#2

Clean NativeContext wrapper. Makes calling any of the 6,000 GTA V native functions trivial.

ptr_arithmetic
C++ Wizard
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1 months ago ยท Jul 3, 2026 4:04 PM
#3

Just remember to invoke natives on the main game thread / ScriptHook fiber to avoid memory corruption.