Make GetWindowInfo() work for all windows and return correct values.

windows/win.c

@@ -3238,42 +3238,28 @@ UINT WINAPI GetWindowModuleFileNameW( HWND hwnd, LPSTR lpszFileName, UINT cchFil
  */
 BOOL WINAPI GetWindowInfo( HWND hwnd, PWINDOWINFO pwi)
 {
-    WND *wndInfo = NULL;
     if (!pwi) return FALSE;
     if (pwi->cbSize != sizeof(WINDOWINFO))
     {
         FIXME("windowinfo->cbSize != sizeof(WINDOWINFO). Please report\n");
         return FALSE;
     }
-    wndInfo = WIN_GetPtr(hwnd);
-    if (!wndInfo) return FALSE;
-    if (wndInfo == WND_OTHER_PROCESS)
-    {
-        FIXME("window belong to other process\n");
-        return FALSE;
-    }
+    if (!IsWindow(hwnd)) return FALSE;
+
+    GetWindowRect(hwnd, &pwi->rcWindow);
+    GetClientRect(hwnd, &pwi->rcClient);
+    /* translate to screen coordinates */
+    MapWindowPoints(hwnd, 0, (LPPOINT)&pwi->rcClient, 2);
 
-    pwi->rcWindow = wndInfo->rectWindow;
-    pwi->rcClient = wndInfo->rectClient;
-    pwi->dwStyle = wndInfo->dwStyle;
-    pwi->dwExStyle = wndInfo->dwExStyle;
+    pwi->dwStyle = GetWindowLongW(hwnd, GWL_STYLE);
+    pwi->dwExStyle = GetWindowLongW(hwnd, GWL_EXSTYLE);
     pwi->dwWindowStatus = ((GetActiveWindow() == hwnd) ? WS_ACTIVECAPTION : 0);
-                    /* if active WS_ACTIVECAPTION, else 0 */
-
-    pwi->cxWindowBorders = ((wndInfo->dwStyle & WS_BORDER) ?
-                    GetSystemMetrics(SM_CXBORDER) : 0);
-    pwi->cyWindowBorders = ((wndInfo->dwStyle & WS_BORDER) ?
-                    GetSystemMetrics(SM_CYBORDER) : 0);
-    /* above two: I'm presuming that borders widths are the same
-     * for each window - so long as its actually using a border.. */
-
-    pwi->atomWindowType = GetClassLongA( hwnd, GCW_ATOM );
-    pwi->wCreatorVersion = GetVersion();
-                    /* Docs say this should be the version that
-                     * CREATED the window. But eh?.. Isn't that just the
-                     * version we are running.. Unless ofcourse its some wacky
-                     * RPC stuff or something */
-
-    WIN_ReleasePtr(wndInfo);
+
+    pwi->cxWindowBorders = pwi->rcClient.left - pwi->rcWindow.left;
+    pwi->cyWindowBorders = pwi->rcWindow.bottom - pwi->rcClient.bottom;
+
+    pwi->atomWindowType = GetClassLongW( hwnd, GCW_ATOM );
+    pwi->wCreatorVersion = 0x0400;
+
     return TRUE;
 }