win32u: Move IsWindowEnabled implementation from user32.

dlls/user32/win.c

@@ -915,14 +915,9 @@ BOOL WINAPI EnableWindow( HWND hwnd, BOOL enable )
 /***********************************************************************
  *		IsWindowEnabled (USER32.@)
  */
-BOOL WINAPI IsWindowEnabled(HWND hWnd)
+BOOL WINAPI IsWindowEnabled( HWND hwnd )
 {
-    LONG ret;
-
-    SetLastError(NO_ERROR);
-    ret = GetWindowLongW( hWnd, GWL_STYLE );
-    if (!ret && GetLastError() != NO_ERROR) return FALSE;
-    return !(ret & WS_DISABLED);
+    return NtUserCallHwnd( hwnd, NtUserIsWindowEnabled );
 }
 
 /***********************************************************************

dlls/win32u/window.c

@@ -807,6 +807,17 @@ BOOL is_window_unicode( HWND hwnd )
     return ret;
 }
 
+/* see IsWindowEnabled */
+static BOOL is_window_enabled( HWND hwnd )
+{
+    LONG ret;
+
+    SetLastError( NO_ERROR );
+    ret = get_window_long( hwnd, GWL_STYLE );
+    if (!ret && GetLastError() != NO_ERROR) return FALSE;
+    return !(ret & WS_DISABLED);
+}
+
 /* see GetWindowDpiAwarenessContext */
 DPI_AWARENESS_CONTEXT get_window_dpi_awareness_context( HWND hwnd )
 {
@@ -4979,6 +4990,8 @@ ULONG_PTR WINAPI NtUserCallHwnd( HWND hwnd, DWORD code )
         return get_server_window_text( hwnd, NULL, 0 );
     case NtUserIsWindow:
         return is_window( hwnd );
+    case NtUserIsWindowEnabled:
+        return is_window_enabled( hwnd );
     case NtUserIsWindowUnicode:
         return is_window_unicode( hwnd );
     case NtUserIsWindowVisible:

include/ntuser.h

@@ -198,6 +198,7 @@ enum
     NtUserGetWindowDpiAwarenessContext,
     NtUserGetWindowTextLength,
     NtUserIsWindow,
+    NtUserIsWindowEnabled,
     NtUserIsWindowUnicode,
     NtUserIsWindowVisible,
 };