2.3 Hook: Handle & Memory Patching

`HookHandle`

HookHandle class is the result object of a succesful DKUtil::Hook operation(except relocation hooks). HookHandle is used to access the hook specific data and enable/disable the hook that created it.

HookHandle handle;

// hook control
handle->Enable();
handle->Disable();

Memory Structure

DKUtil::Hook supports a few ways of passing memory patches/data to the hook. Using example of mov rcx, qword ptr [rsp+0x20]:

struct XbyakPatch : Xbyak::CodeGenerator
{
    XbyakPatch
    {
        mov(rcx, rsp[0x20]);
    }
};

DKUtil::Patch DKUPatch {
    "\x48\x8B\x4C\x24\x20"; // data pointer
    5, // size
};

std::array<std::uint8_t, 5> RawPatch{ 0x48, 0x8B, 0x4C, 0x24, 0x20 };