We just discovered a bug in the resource compiler: it will not allow you to
create a combo box with the style CBS_DROPDOWN.
The problem is this: the three mutually-exclusive types of combo boxes are
CBS_SIMPLE = 1, CBS_DROPDOWN = 2, and CBS_DROPDOWNLIST = 3. The resource
compiler sets up the default style to CBS_SIMPLE (which is correct), but
when you specify CBS_DROPDOWN, it gets ored with the default value, which
turns it into 3, CBS_DROPDOWNLIST.
The patch below works, but might offend someone's sensibilities about what
'defaultstyle' means. I couldn't find a simple way to handle this with the
way the code was structured. It might be more correct to just remove the
CT_COMBOBOX case completely, and then at the end of the function, after the
NOT mask is applied, do:
if (!(ctrl->style->or_mask & (CBS_SIMPLE | CBS_DROPDOWN |
CBS_DROPDOWNLIST)))
ctrl->style->or_mask |= CBS_SIMPLE;
Here's the patch:
diff -u -r1.38 parser.y
--- parser.y 9 Jul 2003 21:55:45 -0000 1.38
+++ parser.y 17 Sep 2003 14:01:56 -0000
@@ -1978,7 +1978,8 @@
defaultstyle |= LBS_NOTIFY | WS_BORDER;
break;
case CT_COMBOBOX:
- defaultstyle |= CBS_SIMPLE;
+ if (!(ctrl->style->or_mask & (CBS_SIMPLE | CBS_DROPDOWN |
CBS_DROPDOWNLIST)))
+ defaultstyle |= CBS_SIMPLE;
break;
case CT_STATIC:
if(special_style == SS_CENTER || special_style == SS_LEFT ||
special_style == SS_RIGHT)
Eric
