Method LowLevelKeyboardProc

src/HookerKeyboard.cpp:2–258


LRESULT CALLBACK Hooker::HookerKeyboard::LowLevelKeyboardProc(
	_In_  int nCode,
	_In_  WPARAM wParam,
	_In_  LPARAM lParam
) {

	if (nCode != HC_ACTION) {
		return CallNextHookEx(0, nCode, wParam, lParam);
	}

	Message_Hotkey msg_hotkey;
	bool need_disable_event = false;

	auto process = [&]() {

		bool double_exists = false;

		GETCONF;

		KBDLLHOOKSTRUCT* k = (KBDLLHOOKSTRUCT*)lParam;

		TKeyCode vkCode = (TKeyCode)k->vkCode;
		auto curKeyState = GetKeyState(wParam);
		bool isInjected = TestFlag(k->flags, LLKHF_INJECTED);
		bool is_low_inject = TestFlag(k->flags, LLKHF_LOWER_IL_INJECTED);
		bool isAltDown = TestFlag(k->flags, LLKHF_ALTDOWN);
		bool isSysKey = wParam == WM_SYSKEYDOWN || wParam == WM_SYSKEYUP;
		bool isExtended = TestFlag(k->flags, LLKHF_EXTENDED);
		bool is_pressed = !TestFlag(k->flags, LLKHF_UP);
		auto scan_code = k->scanCode;
		int iscaps = -1;
		bool isDown = curKeyState == KEY_STATE_DOWN;
		if (isDown) iscaps = Utils::IsCapslockEnabled() ? 1 : 0;

		LOG_ANY(
			"KEY_MSG: {}({:x}) {},scan=0x{:x},inject={},low_inject={},altdown={},syskey={},extended={},is_pressed={},flags=0x{:b},caps={}",
			CHotKey::ToString(vkCode),
			vkCode,
			(curKeyState == KEY_STATE_UP ? "UP" : "DOWN"),
			scan_code,
			isInjected,
			is_low_inject,
			isAltDown,
			isSysKey,
			isExtended,
			is_pressed,
			k->flags,
			iscaps
		);

		if (k->dwExtraInfo == c_MyInjectedId) {
			LOG_ANY(L"skip our keys");
			return;
		}

		if (k->vkCode > 255) {
			LOG_ANY(L"k->vkCode > 255: {}", k->vkCode);
		}