Q: How do we customize the font characteristics of
custom items in a NavPutFile dialog? We are
adding custom dialog elements using the
NavCustomControl call and passing the
kNavCtlAddControlList constant and a
'DITL' handle. Unfortunately, we do not seem to
be able to set the font size or number for the custom items.
We have tried both 'ictb' and
'dftb' resources, but Navigation Services
seems to ignore all these. What is the simplest way to
customize the font characteristics of custom items in a
NavPutFile dialog? We would
prefer if this could be done in a 'dftb' or
'ictb' resource, but do not want to end up
parsing this information by ourselves.
A: Indeed, Nav Services does not honor
'ictb' or 'dftb' resources. This
is because it only knows about dialog item list handles, and
a dialog item list handle does not contain the resource ID
of an 'ictb' or 'dftb' resource.
If you want styled items in your Nav customization
area, you will need to get the control handles of the items
which interest you, create and initialize a ControlFontStyleRec,
and pass the control handle and the ControlFontStyleRec to
SetControlData along with an appropriate tag
constant such as kControlFontStyleTag.
It is not necessary to parse the
'ictb' or 'dftb' information
yourself, because you can use a hard-coded ControlFontStyleRec
without causing localization problems, but it so happens that ControlFontStyleRec
closely resembles the format of the items in a 'dftb'
resource, so you may want to go that route.
Further Reference:
Inside Macintosh: Control Manager
[Jan 11 1999]
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