[FancyZones]Keep maximized state when moving new window to active monitor (#28688)

src/modules/fancyzones/FancyZonesLib/MonitorUtils.cpp

@@ -360,7 +360,7 @@ namespace MonitorUtils
                 if (GetMonitorInfo(monitor, &destMi))
                 {
                     RECT newPosition = FitOnScreen(placement.rcNormalPosition, originMi.rcWork, destMi.rcWork);
-                    FancyZonesWindowUtils::SizeWindowToRect(window, newPosition);
+                    FancyZonesWindowUtils::SizeWindowToRect(window, newPosition, false);
                 }
             }
         }

src/modules/fancyzones/FancyZonesLib/WindowUtils.cpp

@@ -253,7 +253,7 @@ void FancyZonesWindowUtils::SwitchToWindow(HWND window) noexcept
     }
 }
 
-void FancyZonesWindowUtils::SizeWindowToRect(HWND window, RECT rect) noexcept
+void FancyZonesWindowUtils::SizeWindowToRect(HWND window, RECT rect, BOOL snapZone) noexcept
 {
     WINDOWPLACEMENT placement{};
     ::GetWindowPlacement(window, &placement);
@@ -265,8 +265,15 @@ void FancyZonesWindowUtils::SizeWindowToRect(HWND window, RECT rect) noexcept
         ::GetWindowPlacement(window, &placement);
     }
 
+    BOOL maximizeLater = false;
     if (IsWindowVisible(window))
     {
+        // If is not snap zone then need keep maximize state (move to active monitor)
+        if (!snapZone && placement.showCmd == SW_SHOWMAXIMIZED)
+        {
+            maximizeLater = true;
+        }
+
         // Do not restore minimized windows. We change their placement though so they restore to the correct zone.
         if ((placement.showCmd != SW_SHOWMINIMIZED) &&
             (placement.showCmd != SW_MINIMIZE))
@@ -294,6 +301,12 @@ void FancyZonesWindowUtils::SizeWindowToRect(HWND window, RECT rect) noexcept
         Logger::error(L"SetWindowPlacement failed, {}", get_last_error_or_default(GetLastError()));
     }
 
+    // make sure window is moved to the correct monitor before maximize.
+    if (maximizeLater)
+    {
+        placement.showCmd = SW_SHOWMAXIMIZED;
+    }
+
     // Do it again, allowing Windows to resize the window and set correct scaling
     // This fixes Issue #365
     result = ::SetWindowPlacement(window, &placement);

src/modules/fancyzones/FancyZonesLib/WindowUtils.h

@@ -31,7 +31,7 @@ namespace FancyZonesWindowUtils
     bool IsExcludedByDefault(const HWND& hwnd, const std::wstring& processPath) noexcept;
 
     void SwitchToWindow(HWND window) noexcept;
-    void SizeWindowToRect(HWND window, RECT rect) noexcept; // Parameter rect must be in screen coordinates (e.g. obtained from GetWindowRect)
+    void SizeWindowToRect(HWND window, RECT rect, BOOL snapZone = true) noexcept; // Parameter rect must be in screen coordinates (e.g. obtained from GetWindowRect)
     void SaveWindowSizeAndOrigin(HWND window) noexcept;
     void RestoreWindowSize(HWND window) noexcept;
     void RestoreWindowOrigin(HWND window) noexcept;