Re: 16 bit hwnd in SendmessageA/W

[Alexandre Julliard]

Rein Klazes  writes:
> Is anything else needed, I wonder?

Yes, try something like this:

Index: dlls/user/win.c
===================================================================
RCS file: /opt/cvs-commit/wine/dlls/user/win.c,v
retrieving revision 1.2
diff -u -p -r1.2 win.c
--- dlls/user/win.c	27 Apr 2005 10:23:24 -0000	1.2
+++ dlls/user/win.c	7 May 2005 12:18:40 -0000
@@ -307,13 +307,14 @@ WND *WIN_GetPtr( HWND hwnd )
     USER_Lock();
     if ((ptr = user_handles[index]))
     {
-        if (ptr->dwMagic == WND_MAGIC && (!HIWORD(hwnd) || hwnd == ptr->hwndSelf))
+        if (ptr->dwMagic == WND_MAGIC &&
+            (hwnd == ptr->hwndSelf || !HIWORD(hwnd) || HIWORD(hwnd) == 0xffff))
             return ptr;
         ptr = NULL;
     }
     else if (index == USER_HANDLE_TO_INDEX(hwndDesktop))
     {
-        if (!HIWORD(hwnd) || hwnd == GetDesktopWindow()) ptr = WND_DESKTOP;
+        if (hwnd == GetDesktopWindow() || !HIWORD(hwnd) || HIWORD(hwnd) == 0xffff) ptr = WND_DESKTOP;
         else ptr = NULL;
     }
     else ptr = WND_OTHER_PROCESS;
Index: server/user.c
===================================================================
RCS file: /opt/cvs-commit/wine/server/user.c,v
retrieving revision 1.8
diff -u -p -r1.8 user.c
--- server/user.c	28 May 2004 19:35:37 -0000	1.8
+++ server/user.c	7 May 2005 12:18:40 -0000
@@ -35,12 +35,14 @@ static int allocated_handles;

static struct user_handle *handle_to_entry( user_handle_t handle )
 {
+    unsigned short generation;
     int index = (((unsigned int)handle & 0xffff) - FIRST_USER_HANDLE) >> 1;
     if (index < 0 || index >= nb_handles) return NULL;
     if (!handles[index].type) return NULL;
-    if (((unsigned int)handle >> 16) && ((unsigned int)handle >> 16 != handles[index].generation))
-        return NULL;
-    return &handles[index];
+    generation = (unsigned int)handle >> 16;
+    if (generation == handles[index].generation || !generation || generation == 0xffff)
+        return &handles[index];
+    return NULL;
 }

inline static user_handle_t entry_to_handle( struct user_handle *ptr )