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Diffstat (limited to 'winsup/w32api/include/commctrl.h')
-rw-r--r--winsup/w32api/include/commctrl.h4
1 files changed, 3 insertions, 1 deletions
diff --git a/winsup/w32api/include/commctrl.h b/winsup/w32api/include/commctrl.h
index a03aeb66d..f232c2084 100644
--- a/winsup/w32api/include/commctrl.h
+++ b/winsup/w32api/include/commctrl.h
@@ -167,8 +167,10 @@ extern "C" {
#define TTN_LAST ((UINT)-549)
#define TCN_FIRST ((UINT)-550)
#define TCN_LAST ((UINT)-580)
-#define CDN_FIRST ((UINT)-601)
+#ifndef CDN_FIRST
+#define CDN_FIRST ((UINT)-601) /* also in commdlg.h */
#define CDN_LAST ((UINT)-699)
+#endif
#define TBN_FIRST ((UINT)-700)
#define TBN_LAST ((UINT)-720)
#define UDN_FIRST ((UINT)-721)