bool patch(uintptr_t address, const char* value, size_t value_size)
{
detail::memory_protect protect_(address, value_size);
if (protect_.success())
{
DWORD written;
if (::WriteProcessMemory(::GetCurrentProcess(), (LPVOID)address, value, value_size, &written))
{
::FlushInstructionCache(::GetCurrentProcess(), (LPVOID)address, value_size);
return true;
}
}
return false;
}
uintptr_t replace_pointer(uintptr_t address, uintptr_t new_value)
{
uintptr_t old_value = 0;
memory_protect protect_(address);
if (protect_.success())
{
DWORD written = 0;
if (!::ReadProcessMemory(::GetCurrentProcess(), (LPCVOID)address, &old_value, sizeof(uintptr_t), &written))
{
return 0;
}
if (!::WriteProcessMemory(::GetCurrentProcess(), (LPVOID)address, &new_value, sizeof(uintptr_t), &written))
{
return 0;
}
}
return old_value;
}
