include: Add defines used in CopyFileEx.
diff --git a/include/winbase.h b/include/winbase.h
index 4d4bb3f..c3e516d 100644
--- a/include/winbase.h
+++ b/include/winbase.h
@@ -171,6 +171,16 @@
#define COPY_FILE_RESTARTABLE 0x00000002
#define COPY_FILE_OPEN_SOURCE_FOR_WRITE 0x00000004
+/* return values for CopyProgressRoutine */
+#define PROGRESS_CONTINUE 0
+#define PROGRESS_CANCEL 1
+#define PROGRESS_STOP 2
+#define PROGRESS_QUIET 3
+
+/* reason codes for CopyProgressRoutine */
+#define CALLBACK_CHUNK_FINISHED 0
+#define CALLBACK_STREAM_SWITCH 1
+
/* GetTempFileName() Flags */
#define TF_FORCEDRIVE 0x80
