添加一个没有正在运行的应用程序的全局Windows热键
问题描述:
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)。添加一个没有正在运行的应用程序的全局Windows热键
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?
答
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;
}