FancyZones and Shortcut Guide initial commit

Co-authored-by: Alexis Campailla <alexis@janeasystems.com>
Co-authored-by: Bret Anderson <bretan@microsoft.com>
Co-authored-by: Enrico Giordani <enrico.giordani@gmail.com>
Co-authored-by: Jaime Bernardo <jaime@janeasystems.com>
Co-authored-by: Jeff Bogdan <jeffbog@microsoft.com>
Co-authored-by: March Rogers <marchr@microsoft.com>
Co-authored-by: Mike Harsh <mharsh@microsoft.com>
Co-authored-by: Nachum Bundak <Nachum.Bundak@microsoft.com>
Co-authored-by: Oliver Jones <ojones@microsoft.com>
Co-authored-by: Patrick Little <plittle@microsoft.com>

src/modules/interface/win_hook_event_data.h

@@ -0,0 +1,50 @@
+#pragma once
+#include <Windows.h>
+
+/*
+  win_hook_event - Windows Event Hook
+
+  The PowerToys runner installs event hook functions for a range of events. See
+  https://docs.microsoft.com/pl-pl/windows/win32/api/winuser/nf-winuser-setwineventhook
+  for details.
+  
+  The intptr_t data event argument is a pointer to the WinHookEvent struct.
+
+  The return value of the event handler is ignored.
+
+  Example usage, that detects a window being resized:
+
+  virtual intptr_t signal_event(const wchar_t* name, intptr_t data) override {
+    if (wcscmp(name, win_hook_event) == 0) {
+      auto& event = *(reinterpret_cast<WinHookEvent*>(data));
+      switch (event.event) {
+      case EVENT_SYSTEM_MOVESIZESTART:
+        size_start(event.hwnd);
+        break;
+      case EVENT_SYSTEM_MOVESIZEEND:
+        size_end(event.hwnd);
+        break;
+      default:
+        break;
+      }
+    }
+    return 0;
+  }
+
+  Taking to long to process the events has negative impact on the whole system
+  performance. To address this, the events are signaled from a different
+  thread, not from the event hook callback itself.
+*/
+
+namespace {
+  const wchar_t* win_hook_event = L"win_hook_event";
+}
+
+struct WinHookEvent {
+  DWORD event;
+  HWND hwnd;
+  LONG idObject;
+  LONG idChild;
+  DWORD idEventThread;
+  DWORD dwmsEventTime;
+};