添加一个没有正在运行的应用程序的全局Windows热键

Question

我想创建一个全局热键来启动我的应用程序，即使它没有运行（没有后台进程）。

从我读过的内容来看，RegisterHotkey需要一个运行过程来获取热键消息。

我尝试在应用程序的快捷方式上使用IShellLink :: SetHotkey，但它看起来非常片状。尽管调用SHChangeNotify，但当我将快捷方式的热键设置为无时，热键不会清除。有什么我必须做的，使Windows外壳意识到快捷键的热键已经改变？

我认为，通过设置快捷键属性，按下应用，然后更改热键并再次应用，您实际上可以通过Windows用户界面获得相同的片状行为。旧热键仍然有效。

有关如何执行此操作或对我的调查进行更正的任何建议？

Answer 1

试试这个代码：

#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; 

}