键盘挂钩和更改用户输入

我想编写一个拦截用户输入并更改它的软件。在后期的Windows 98以及之前我们的语言不被正式支持，所以程序员决定发明一种基于ASCII字符（ArmSCII）和字体的书写方法，以便我们可以用我们的语言编写。该软件只是将英文inpur修改为ArmSCII中的相关字符。该计划现在已经老了。我想写一个新的。它应该是全系统的。任何建议我怎样才能钩入键盘并改变输入？ C，C++或C＃无关紧要。我没事与他们..键盘挂钩和更改用户输入

来源

2012-09-02 Miro Markaravanes

要使用亚美尼亚资讯交换标准代码为什么而不是普通的亚美尼亚语键盘布局（从Windows本地化设置）？ – Gir

我自己使用unicode，但很多人要求ArmSCII，所以我也想这样做。 –

这里是一个键盘钩子截获用户输入，并将其变为printf("ha ha, I intercepted your [%c] and changed it to [%c]\n", key, key+1);

Win32控制台C/C++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 >= 'A' && key <= 'Z') 
     { 

      if (GetAsyncKeyState(VK_SHIFT)>= 0) key +=32; 

      if (CTRL_key !=0 && key == 'y') 
      { 
       MessageBox(NULL, "CTRL-y was pressed\nLaunch your app here", "H O T K E Y", MB_OK); 
       CTRL_key=0; 
      } 

      if (CTRL_key !=0 && key == 'q') 
      { 
       MessageBox(NULL, "Shutting down", "H O T K E Y", MB_OK); 
       PostQuitMessage(0); 
      } 




      //printf("key = %c\n", key); 
      printf("ha ha, I intercepted your [%c] and changed it to [%c]\n", key, key+1); 

      SHIFT_key = 0; 
      CTRL_key = 0; 
      ALT_key = 0; 

     } 

     //printf("lpszKeyName = %s\n", lpszKeyName); 
    // printf("%s", lpszKeyName); 
    } 
    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); 

    //ShowWindow(FindWindowA("ConsoleWindowClass", NULL), false); 

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

}

来源

2012-09-02 15:19:48

应用程序中有很多构建错误..： –

键盘挂钩和更改用户输入

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