[EXPLORER][SHELL32][SHELL32_APITEST][SDK] AppBar Part 2 (#7946)

Follow-up of #7778.
JIRA issue: CORE-7237
- Rename APPBARDATA3264 structure
  as APPBARDATAINTEROP.
- Fix structures for WoW64.
- Use trace instead of DPRINT1.
- Add CAppBarManager::
  RecomputeAllWorkareas function.
- Fix WM_DISPLAYCHANGE handling
  to re-compute the work areas.

sdk/include/reactos/undocshell.h

@@ -1222,32 +1222,44 @@ typedef struct SFVM_CUSTOMVIEWINFO_DATA
 
 #include <poppack.h>
 
+#if defined(_WIN64) || defined(BUILD_WOW6432)
+    typedef UINT64 APPBAR_OUTPUT;
+#else
+    typedef HANDLE APPBAR_OUTPUT;
+#endif
+
 /*
  * Private structures for internal AppBar messaging.
  * These structures can be sent from 32-bit shell32 to 64-bit Explorer.
  * See also: https://learn.microsoft.com/en-us/windows/win32/winprog64/interprocess-communication
  * > ... only the lower 32 bits are significant, so it is safe to truncate the handle
+ * See also: https://learn.microsoft.com/en-us/windows/win32/api/handleapi/nf-handleapi-duplicatehandle
+ * > DuplicateHandle can be used to duplicate a handle between a 32-bit process and a 64-bit process.
  */
 #include <pshpack8.h>
-typedef struct tagAPPBARDATA3264
+typedef struct tagAPPBARDATAINTEROP
 {
-    DWORD cbSize; /* == sizeof(APPBARDATA3264) */
+    DWORD cbSize; /* == sizeof(APPBARDATAINTEROP) */
     UINT32 hWnd32;
     UINT uCallbackMessage;
     UINT uEdge;
     RECT rc;
     LONGLONG lParam64;
-} APPBARDATA3264, *PAPPBARDATA3264;
+} APPBARDATAINTEROP, *PAPPBARDATAINTEROP;
 typedef struct tagAPPBAR_COMMAND
 {
-    APPBARDATA3264 abd;
+    APPBARDATAINTEROP abd;
     DWORD dwMessage;
-    UINT32 hOutput32; /* For shlwapi!SHAllocShared */
+    APPBAR_OUTPUT hOutput; /* For shlwapi!SHAllocShared */
     DWORD dwProcessId;
 } APPBAR_COMMAND, *PAPPBAR_COMMAND;
 #include <poppack.h>
 
+#if defined(_WIN64) || defined(BUILD_WOW6432)
+C_ASSERT(sizeof(APPBAR_COMMAND) == 0x40);
+#else
 C_ASSERT(sizeof(APPBAR_COMMAND) == 0x38);
+#endif
 
 #ifdef __cplusplus
 } /* extern "C" */