Jacek Caban : win32u: Move IsWindowVisible implementation from user32.

[Alexandre Julliard]

Module: wine
Branch: master
Commit: a36fcc827acb1c2934dcf03ff76be99353325c93
URL:    https://source.winehq.org/git/wine.git/?a=commit;h=a36fcc827acb1c2934dcf03ff...

Author: Jacek Caban 
Date:   Tue Mar  8 14:24:20 2022 +0100

win32u: Move IsWindowVisible implementation from user32.

Signed-off-by: Jacek Caban 
Signed-off-by: Huw Davies 
Signed-off-by: Alexandre Julliard

---

dlls/user32/win.c    | 15 +--------------
 dlls/win32u/window.c | 21 +++++++++++++++++++++
 include/ntuser.h     |  1 +
 3 files changed, 23 insertions(+), 14 deletions(-)

diff --git a/dlls/user32/win.c b/dlls/user32/win.c
index 58c581c26da..a22b80da6a9 100644
--- a/dlls/user32/win.c
+++ b/dlls/user32/win.c
@@ -3016,20 +3016,7 @@ BOOL WINAPI IsChild( HWND parent, HWND child )
  */
 BOOL WINAPI IsWindowVisible( HWND hwnd )
 {
-    HWND *list;
-    BOOL retval = TRUE;
-    int i;
-
-    if (!(GetWindowLongW( hwnd, GWL_STYLE ) & WS_VISIBLE)) return FALSE;
-    if (!(list = list_window_parents( hwnd ))) return TRUE;
-    if (list[0])
-    {
-        for (i = 0; list[i+1]; i++)
-            if (!(GetWindowLongW( list[i], GWL_STYLE ) & WS_VISIBLE)) break;
-        retval = !list[i+1] && (list[i] == GetDesktopWindow());  /* top message window isn't visible */
-    }
-    HeapFree( GetProcessHeap(), 0, list );
-    return retval;
+    return NtUserCallHwnd( hwnd, NtUserIsWindowVisible );
 }

diff --git a/dlls/win32u/window.c b/dlls/win32u/window.c
index 3c65d3ec1ce..e13107d1d64 100644
--- a/dlls/win32u/window.c
+++ b/dlls/win32u/window.c
@@ -606,6 +606,25 @@ BOOL is_child( HWND parent, HWND child )
     return ret;
 }

+/* see IsWindowVisible */
+static BOOL is_window_visible( HWND hwnd )
+{
+    HWND *list;
+    BOOL retval = TRUE;
+    int i;
+
+    if (!(get_window_long( hwnd, GWL_STYLE ) & WS_VISIBLE)) return FALSE;
+    if (!(list = list_window_parents( hwnd ))) return TRUE;
+    if (list[0])
+    {
+        for (i = 0; list[i+1]; i++)
+            if (!(get_window_long( list[i], GWL_STYLE ) & WS_VISIBLE)) break;
+        retval = !list[i+1] && (list[i] == user_callbacks->pGetDesktopWindow());  /* top message window isn't visible */
+    }
+    free( list );
+    return retval;
+}
+
 static LONG_PTR get_win_data( const void *ptr, UINT size )
 {
     if (size == sizeof(WORD))
@@ -955,6 +974,8 @@ DWORD WINAPI NtUserCallHwnd( HWND hwnd, DWORD code )
         return get_server_window_text( hwnd, NULL, 0 );
     case NtUserIsWindow:
         return is_window( hwnd );
+    case NtUserIsWindowVisible:
+        return is_window_visible( hwnd );
     default:
         FIXME( "invalid code %u\n", code );
         return 0;
diff --git a/include/ntuser.h b/include/ntuser.h
index 8d724971d53..20fa61bacec 100644
--- a/include/ntuser.h
+++ b/include/ntuser.h
@@ -142,6 +142,7 @@ enum
     NtUserGetParent,
     NtUserGetWindowTextLength,
     NtUserIsWindow,
+    NtUserIsWindowVisible,
 };

/* NtUserCallHwndParam codes, not compatible with Windows */