[FancyZones] Changed Shift key capture method (#4274)

* Used windows hook to capture shift key instead of getting state of key on window move

src/modules/fancyzones/lib/ShiftKeyHook.cpp

@@ -0,0 +1,60 @@
+#include "pch.h"
+#include "ShiftKeyHook.h"
+
+#pragma region public
+
+HHOOK ShiftKeyHook::hHook = {};
+std::function<void(bool)> ShiftKeyHook::callback = {};
+
+ShiftKeyHook::ShiftKeyHook(std::function<void(bool)> extCallback)
+{
+    callback = std::move(extCallback);
+    hHook = SetWindowsHookEx(WH_KEYBOARD_LL, ShiftKeyHookProc, GetModuleHandle(NULL), 0);
+}
+
+void ShiftKeyHook::enable()
+{
+    if (!hHook)
+    {
+        hHook = SetWindowsHookEx(WH_KEYBOARD_LL, ShiftKeyHookProc, GetModuleHandle(NULL), 0);
+    }
+}
+
+void ShiftKeyHook::disable()
+{
+    if (hHook)
+    {
+        UnhookWindowsHookEx(hHook);
+        hHook = NULL;
+    }
+}
+
+#pragma endregion
+
+#pragma region private
+
+LRESULT CALLBACK ShiftKeyHook::ShiftKeyHookProc(int nCode, WPARAM wParam, LPARAM lParam)
+{
+    if (nCode == HC_ACTION)
+    {
+        if (wParam == WM_KEYDOWN)
+        {
+            PKBDLLHOOKSTRUCT kbdHookStruct = (PKBDLLHOOKSTRUCT)lParam;
+            if (kbdHookStruct->vkCode == VK_LSHIFT || kbdHookStruct->vkCode == VK_RSHIFT)
+            {
+                callback(true);
+            }
+        }
+        else if (wParam == WM_KEYUP)
+        {
+            PKBDLLHOOKSTRUCT kbdHookStruct = (PKBDLLHOOKSTRUCT)lParam;
+            if (kbdHookStruct->vkCode == VK_LSHIFT || kbdHookStruct->vkCode == VK_RSHIFT)
+            {
+                callback(false);
+            }
+        }
+    }
+    return CallNextHookEx(hHook, nCode, wParam, lParam);
+}
+
+#pragma endregion