想念Linux下compiz的热角，基于taviso/hotcorner改写了一个超级小的hotcorner应用，upx压缩后体积只有37k，占用也足够低：

运行后，鼠标点击屏幕左上角即可切换任务视图。Ctrl+Alt+C退出。要开机启动放到如下文件夹即可：

"%USERPROFILE%\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup"

下载：https://files.cnblogs.com/files/dylanchu/hotcorner.7z

由于用的是鼠标点击事件，所以逻辑和代码很简单：

#define WIN32_LEAN_AND_MEAN#include <stdlib.h>#include <windows.h>#pragma comment(lib, "USER32")#pragma comment(linker, "/SUBSYSTEM:WINDOWS")#define KEYDOWN(k) ((k) & 0x80)// based on https://github.com/taviso/hotcorner// It just works. dylanchu 2020-02-07static const RECT kHotCorner = { .top = 0, .left = 0, .right = +1, .bottom = +1,};// Input to inject when corner activated (Win+Tab by default).static const INPUT kCornerInput[] = { { INPUT_KEYBOARD, .ki = { VK_LWIN, .dwFlags = 0 }}, { INPUT_KEYBOARD, .ki = { VK_TAB, .dwFlags = 0 }}, { INPUT_KEYBOARD, .ki = { VK_TAB, .dwFlags = KEYEVENTF_KEYUP }}, { INPUT_KEYBOARD, .ki = { VK_LWIN, .dwFlags = KEYEVENTF_KEYUP }},};// You can exit the application using the hot key CTRL+ALT+C by default, if it// interferes with some application you're using (e.g. a full screen game).static const DWORD kHotKeyModifiers = MOD_CONTROL | MOD_ALT;static const DWORD kHotKey = 'C';static HANDLE CornerThread = INVALID_HANDLE_VALUE;static DWORD WINAPI CornerHotFunc(LPVOID lpParameter){ BYTE KeyState[256]; POINT Point; // Check if any modifier keys are pressed. if (GetKeyboardState(KeyState)) { if (KEYDOWN(KeyState[VK_SHIFT]) || KEYDOWN(KeyState[VK_CONTROL]) || KEYDOWN(KeyState[VK_MENU]) || KEYDOWN(KeyState[VK_LWIN]) || KEYDOWN(KeyState[VK_RWIN])) { return 0; } } #pragma warning(suppress : 4090) if (SendInput(_countof(kCornerInput), kCornerInput, sizeof(INPUT)) != _countof(kCornerInput)) { return 1; } return 0;}static LRESULT CALLBACK MouseHookCallback(int nCode, WPARAM wParam, LPARAM lParam){ MSLLHOOKSTRUCT *evt = (MSLLHOOKSTRUCT *) lParam; // If the mouse hasn't been clicked, we're done. if (wParam == WM_LBUTTONDOWN && PtInRect(&kHotCorner, evt->pt)) { CornerThread = CreateThread(NULL, 0, CornerHotFunc, NULL, 0, NULL); } else if (wParam == WM_LBUTTONUP && CornerThread != INVALID_HANDLE_VALUE) { CornerThread = INVALID_HANDLE_VALUE; } return CallNextHookEx(NULL, nCode, wParam, lParam);}int CALLBACK WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpCmdLine, int nCmdShow){ MSG Msg; HHOOK MouseHook; if (!(MouseHook = SetWindowsHookEx(WH_MOUSE_LL, MouseHookCallback, NULL, 0))) return 1; RegisterHotKey(NULL, 1, kHotKeyModifiers, kHotKey); while (GetMessage(&Msg, NULL, 0, 0)) { if (Msg.message == WM_HOTKEY) { break; } DispatchMessage(&Msg); } UnhookWindowsHookEx(MouseHook); return Msg.wParam;}