win32u: Use user message packing for EM_SETTABSTOPS and LB_SETTABSTOPS.

dlls/user32/winproc.c

@@ -875,11 +875,8 @@ BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lparam,
     case EM_SETRECT:
     case EM_SETRECTNP:
     case EM_GETLINE:
-        break;
     case EM_SETTABSTOPS:
     case LB_SETTABSTOPS:
-        if (!*wparam) return TRUE;
-        minsize = *wparam * sizeof(UINT);
         break;
     case CB_ADDSTRING:
     case CB_INSERTSTRING:
@@ -1083,6 +1080,8 @@ BOOL WINAPI User32CallWindowProc( struct win_proc_params *params, ULONG size )
         case EM_SETRECT:
         case EM_SETRECTNP:
         case EM_GETLINE:
+        case EM_SETTABSTOPS:
+        case LB_SETTABSTOPS:
         {
             LRESULT *result_ptr = (LRESULT *)buffer - 1;
             *result_ptr = result;

dlls/win32u/message.c

@@ -594,6 +594,11 @@ static BOOL unpack_message( HWND hwnd, UINT message, WPARAM *wparam, LPARAM *lpa
         *lparam = (LPARAM)(len_ptr + 1);
         return TRUE;
     }
+    case EM_SETTABSTOPS:
+    case LB_SETTABSTOPS:
+        if (!*wparam) return TRUE;
+        minsize = *wparam * sizeof(UINT);
+        break;
     case WM_WINE_SETWINDOWPOS:
     {
         WINDOWPOS wp;
@@ -1410,6 +1415,10 @@ size_t user_message_size( UINT message, WPARAM wparam, LPARAM lparam, BOOL other
     case EM_GETLINE:
         size = max( *(WORD *)lparam * char_size( ansi ), sizeof(WORD) );
         break;
+    case EM_SETTABSTOPS:
+    case LB_SETTABSTOPS:
+        size = wparam * sizeof(UINT);
+        break;
     }
 
     return size;

dlls/win32u/tests/win32u.c

@@ -1384,8 +1384,9 @@ static void check_params( const struct lparam_hook_test *test, UINT message,
     if (lparam == (LPARAM)lparam_buffer)
         return;
 
-    ok ((LPARAM)&message < lparam && lparam < (LPARAM)NtCurrentTeb()->Tib.StackBase,
-        "lparam is not on the stack\n");
+    if (sizeof(void *) != 4 || (test->message != EM_SETTABSTOPS && test->message != LB_SETTABSTOPS))
+        ok( (LPARAM)&message < lparam && lparam < (LPARAM)NtCurrentTeb()->Tib.StackBase,
+            "lparam is not on the stack\n");
 
     switch (test->message)
     {
@@ -1679,6 +1680,7 @@ static void test_wndproc_hook(void)
     static const SCROLLBARINFO sbi_in = { .xyThumbTop = 6 };
     static const SCROLLBARINFO sbi_out = { .xyThumbTop = 60 };
     static const DWORD dw_in = 1, dw_out = 2;
+    static const UINT32 tabstops_in[2] = { 3, 4 };
 
     static const struct lparam_hook_test lparam_hook_tests[] =
     {
@@ -1885,6 +1887,16 @@ static void test_wndproc_hook(void)
             .lparam = L"\x8""2345678", .lparam_size = sizeof(strbufW), .change_lparam = L"abc\0defg",
             .check_size = sizeof(WCHAR), .check_lparam = L"abc\0""5678",
         },
+        {
+            "EM_SETTABSTOPS", EM_SETTABSTOPS, .wparam = ARRAYSIZE(tabstops_in),
+            .lparam_size = sizeof(tabstops_in), .lparam = &tabstops_in, .poison_lparam = TRUE,
+            .check_size = sizeof(tabstops_in),
+        },
+        {
+            "LB_SETTABSTOPS", LB_SETTABSTOPS, .wparam = ARRAYSIZE(tabstops_in),
+            .lparam_size = sizeof(tabstops_in), .lparam = &tabstops_in, .poison_lparam = TRUE,
+            .check_size = sizeof(tabstops_in),
+        },
         /* messages that don't change lparam */
         { "WM_USER", WM_USER },
         { "WM_NOTIFY", WM_NOTIFY },