按下了什么键?键盘挂钩 [英] What key was pressed? Keyboard hooks

问题描述

我正在使用低级挂钩，但是我无法确定按下了哪个键.每个键的值都相同.这是我做错了吗?

I'm using low level hooks, but I can't determine what key was pressed. Values are the same for every single key. Is here something I'm doing wrong?

挂钩方法

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(我的应用中确实有内容)

Callback definition (I do have content in the app)

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

按下任意键给出的值

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

只要在按下键时wParam更改为0x101(按下键时为0x100)

just the wParam changes to 0x101 on key up (0x100 on key down)

推荐答案

KBDLLHOOKSTRUCT *kbdStruct = (KBDLLHOOKSTRUCT*)lParam;

:)

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