[C++] SetGameKeyState

[dphome]

ver 1 (sa_masterPL)

#define GTA_KEYS    0xB73458
DWORD SGKS;
void SetGameKeyState(BYTE key, BYTE state)
{
    SGKS = GTA_KEYS + key;
    memset((void*)SGKS, state, 1);
};

ver 2 (0x_)

void SetGameKeyState(BYTE key, BYTE state)
{
    memset(reinterpret_cast<void*>(0xB73458 + key), state, 1);
}

ver 3 (0x_)

void SetGameKeyState(BYTE key, BYTE state)
{
    *(uint8_t*)(0xB73458 + key) = state;
}

ver 4 (DarkP1xel)

void __cdecl SetGameKeyState(const unsigned __int8 i8Key, const __int16 i16State)
{
    *reinterpret_cast<__int16 *>(0xB73458 + i8Key) = i16State;
    return;
}

usage:

SetGameKeyState(0x20, 0);
SetGameKeyState(0x20, 255);

 

[0x_]

Nice that you post some snippets but there are some things that don't make sense:

1. GTA_KEYS is a m0d_sa macro use the address so it works w/o s0b or add the macro above.
2. "SGKS" doesn't have to be a global or even a local
3. You shouldn't really require a memset call for that.

two possible variants for you:

void SetGameKeyState(BYTE key, BYTE state)
{
    memset(reinterpret_cast<void*>(0xB73458 + key), state, 1);
}

// or without memset
void SetGameKeyState(BYTE key, BYTE state)
{
    *(uint8_t*)(0xB73458 + key) = state;
}

 

[dphome]

//update