c++ - 按下了什么键？键盘 Hook

Question

我正在使用低级 Hook ，但我无法确定按下的是哪个键。每个键的值都相同。我做错了什么吗？

Hook 方法

void hook() {

    /** this part is probably not important since I use global WH_KEYBOARD_LL, is that right? */
    HWND hwnd = FindWindow(NULL, "Vertices.exe");
    HINSTANCE instance = (HINSTANCE)GetWindowLong(hwnd, GWL_HINSTANCE);
    /** end part */

    SetWindowsHookEx(WH_KEYBOARD_LL, LowLevelKeyboardProc, instance /** or NULL ? */, NULL);
}

回调定义(我在app里面确实有内容)

LRESULT CALLBACK LowLevelKeyboardProc(int nCode, WPARAM wParam, LPARAM lParam);

按下任意键给出的值

nCode:0 | wParam:0x100 | lParam:0x18fe14

只是 wParam 在按下键时变为 0x101(按下键时变为 0x100)

Answer 1

KBDLLHOOKSTRUCT *kbdStruct = (KBDLLHOOKSTRUCT*)lParam;

:)