--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mupdf-source/thirdparty/freeglut/src/mswin/fg_menu_mswin.c	Mon Sep 15 11:43:07 2025 +0200
@@ -0,0 +1,108 @@
+/*
+ * fg_menu_mswin.c
+ *
+ * The Windows-specific mouse cursor related stuff.
+ *
+ * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved.
+ * Written by John F. Fay, <fayjf@sourceforge.net>
+ * Creation date: Sun Jan 22, 2012
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included
+ * in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
+ * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#define FREEGLUT_BUILDING_LIB
+#include <GL/freeglut.h>
+#include "../fg_internal.h"
+
+
+extern void fgEnumMenus( FGCBMenuEnumerator enumCallback, SFG_Enumerator* enumerator );
+
+
+
+GLvoid fgPlatformGetGameModeVMaxExtent( SFG_Window* window, int* x, int* y )
+{
+    *x = glutGet ( GLUT_SCREEN_WIDTH );
+    *y = glutGet ( GLUT_SCREEN_HEIGHT );
+}
+
+static void fghcbIsActiveMenu(SFG_Menu *menu,
+    SFG_Enumerator *enumerator)
+{
+    if (enumerator->found)
+        return;
+
+    /* Check the menu's active and the one we are searching for. */
+    if (menu->IsActive && menu->Window->Window.Handle==(HWND)enumerator->data)
+    {
+        enumerator->found = GL_TRUE;
+        enumerator->data  = (void*) menu;
+        return;
+    }
+}
+
+void fgPlatformCheckMenuDeactivate(HWND newFocusWnd)
+{
+    /* User/system switched application focus.
+     * If we have an open menu, close it.
+     * If the window that got focus is an active
+     * menu window, don't do anything. This occurs
+     * as it is sadly necessary to do an activating
+     * ShowWindow() for the menu to pop up over the
+     * gamemode window.
+     * If the window that got focus is the gamemode
+     * window, the menus pop under it. Bring them
+     * back in view in this special case.
+     */
+    SFG_Menu* menu = NULL;
+    SFG_Enumerator enumerator;
+
+    if ( fgState.ActiveMenus )
+    {
+        /* see if there is an active menu whose window matches the one that got focus */
+        enumerator.found = GL_FALSE;
+        enumerator.data  = (void*) newFocusWnd;
+        fgEnumMenus(fghcbIsActiveMenu, &enumerator);
+        if (enumerator.found)
+            menu = (SFG_Menu*) enumerator.data;
+
+        if ( !menu )
+        {
+            /* window that got focus was not one of the active menus. That means we'll
+             * close the active menu's unless the window that got focus was their parent */
+            menu = fgGetActiveMenu();
+            
+            if (newFocusWnd != menu->ParentWindow->Window.Handle)
+            {
+                /* focus shifted to another window than the menu's parent, close menus */
+                fgDeactivateMenu(menu->ParentWindow);
+                return;
+            }
+        }
+    }
+};
+
+
+
+/* -- PLATFORM-SPECIFIC INTERFACE FUNCTION -------------------------------------------------- */
+
+int FGAPIENTRY __glutCreateMenuWithExit( void(* callback)( int ), void (__cdecl *exit_function)(int) )
+{
+  __glutExitFunc = exit_function;
+  return glutCreateMenu( callback );
+}
+