implement WM_NOTIFY handling

1 files changed, 13 insertions, 0 deletions

diff --git a/alf/alf.cpp b/alf/alf.cpp
index aef4167..c22c30a 100644
--- a/alf/alf.cpp
+++ b/alf/alf.cpp
@@ -456,6 +456,19 @@ ALF_DefWindowProc(HWND hwnd, UINT msg, WPARAM wparam, LPARAM lparam)
         return ret;
     }
 
+    if (msg == WM_NOTIFY) {
+        NMHDR *nmhdr = (NMHDR *)lparam;
+        LRESULT ret = 0;
+
+        if (nmhdr->hwndFrom)
+            ret = SendMessage(nmhdr->hwndFrom, 0x2000 + WM_NOTIFY, wparam, lparam);
+
+        if (ret == 0 && priv->vtbl->notify)
+            ret = priv->vtbl->notify(priv->closure, hwnd, wparam, nmhdr);
+
+        return ret;
+    }
+
     if (msg == WM_ACTIVATE) {
         if (!HIWORD(wparam)) { // if !minimized
             if (LOWORD(wparam)) {