Distinguish RADIOCHECK style menu items from standard checkmark menu
items.

controls/menu.c

diff --git a/controls/menu.c b/controls/menu.c
index afade7e..1d30971 100644
--- a/controls/menu.c
+++ b/controls/menu.c
@@ -4509,6 +4509,9 @@
 
     if (lpmii->fMask & MIIM_CHECKMARKS)
     {
+        if (lpmii->fType & MFT_RADIOCHECK)
+            menu->fType |= MFT_RADIOCHECK;
+
 	menu->hCheckBit = lpmii->hbmpChecked;
 	menu->hUnCheckBit = lpmii->hbmpUnchecked;
     }