32. Why doesn't my combo box dropdown appear when I click the down arrow?
Also sometimes voiced as "why can't I add items to a combo?".
You've been caught by one of the commonest newbie Windows programmer problems :
you have
omitted to resize the combo box drop-down. For some unearthly reason best known to
Microsoft, the combo box drop-down defaults to a size of one pixel. Just go into the
resource editor, open the dialog and click the combo down arrow. This produces a set of
sizing handles so you can re-size the drop-down box.
