Question

我正在编写一个带有Visual C ++的程序，它应该改变游戏中的一些键盘键。

我用过 kHook = SetWindowsHookEx(WH_KEYBOARD_LL,setkey,NULL,0); 知道按键是在电脑上按下的 FindWindow() 找到我应该处理我的代码的游戏，以便在该游戏中按下键。

但我需要禁用某些键，例如单击空格时我需要阻止游戏知道空间被点击。实际上禁用该游戏中的空间我应该怎么做。我搜索了很多但我一无所获。

Answer 1

请仔细阅读LowLevelKeyboardProc callback function MSDN documentation。有答案。

基本上您需要LowLevelKeyboardProc实施（setkey？）：

点击wParam查看WM_KEYDOWN和WM_KEYUP条消息
从vkCode指向lParam

VK_SPACE

如果1和2都为true则返回非零吃处理消息

Answer 2

这个全系统的键盘挂钩可能会中途遇到你。它会检测空格键。

代码：

#define _WIN32_WINNT 0x0400
#pragma comment( lib, "user32.lib" )

#include <windows.h>
#include <stdio.h>

HHOOK hKeyboardHook;

__declspec(dllexport) LRESULT CALLBACK KeyboardEvent (int nCode, WPARAM wParam, LPARAM lParam)
{
    DWORD SHIFT_key=0;
    DWORD CTRL_key=0;
    DWORD ALT_key=0;

    if  ((nCode == HC_ACTION) &&   ((wParam == WM_SYSKEYDOWN) ||  (wParam == WM_KEYDOWN)))      
    {
        KBDLLHOOKSTRUCT hooked_key =    *((KBDLLHOOKSTRUCT*)lParam);
        DWORD dwMsg = 1;
        dwMsg += hooked_key.scanCode << 16;
        dwMsg += hooked_key.flags << 24;
        char lpszKeyName[1024] = {0};
        lpszKeyName[0] = '[';

        int i = GetKeyNameText(dwMsg,   (lpszKeyName+1),0xFF) + 1;
        lpszKeyName[i] = ']';

        int key = hooked_key.vkCode;

        SHIFT_key = GetAsyncKeyState(VK_SHIFT);
        CTRL_key = GetAsyncKeyState(VK_CONTROL);
        ALT_key = GetAsyncKeyState(VK_MENU);


        if (key ==VK_SPACE)   //Space key detected, do stuff
        {
            MessageBox(NULL, "Space key detected", "Keyboard hook", MB_OK); 
             return 1;

        }


    }
    return CallNextHookEx(hKeyboardHook,    nCode,wParam,lParam);
}

void MessageLoop()
{
    MSG message;
    while (GetMessage(&message,NULL,0,0)) 
    {
        TranslateMessage( &message );
        DispatchMessage( &message );
    }
}

DWORD WINAPI my_HotKey(LPVOID lpParm)
{
    HINSTANCE hInstance = GetModuleHandle(NULL);
    if (!hInstance) hInstance = LoadLibrary((LPCSTR) lpParm); 
    if (!hInstance) return 1;

    hKeyboardHook = SetWindowsHookEx (  WH_KEYBOARD_LL, (HOOKPROC) KeyboardEvent,   hInstance,  NULL    );
    MessageLoop();
    UnhookWindowsHookEx(hKeyboardHook);
    return 0;
}

int main(int argc, char** argv)
{
    HANDLE hThread;
    DWORD dwThread;

    hThread = CreateThread(NULL,NULL,(LPTHREAD_START_ROUTINE)   my_HotKey, (LPVOID) argv[0], NULL, &dwThread);



    if (hThread) return WaitForSingleObject(hThread,INFINITE);
    else return 1;

}

如何在另一个程序中禁用密钥？

2 个答案: