Navigation services popup menu

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Phil Taylor - 21 Sep 2005 21:09 GMT

I want to use NavPutFile in a Carbon port of an old program. I know
it's obsolete, but I don't want the hassle of dealing with FsRefs and
CFStrings etc, and I don't care about Long/Unicode filenames.

The program originally used CustomPutFile, with a popup menu to select
which of 9 different file types to create.

Now I can see how to populate the popup menu in NavPutFile, but what I
can't see is how to retrieve the user's choice of filetype after the OK
button has been pressed.

Can anyone enlighten me?

Phil Taylor

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Phil Taylor - 23 Sep 2005 10:48 GMT

> Now I can see how to populate the popup menu in NavPutFile, but what I
> can't see is how to retrieve the user's choice of filetype after the OK
> button has been pressed.

To answer my own question (in case anybody's interested), it's done in
the eventproc. Look for a callBackSelector of type
kNavCBPopupMenuSelect. Then look at the what and when fields of the
eventrecord obtained from
callBackParms^.eventData.eventDataParms.event^. These contain the type
and creator OSTypes from the list which you supplied in the
popupExtension of NavDialogOptions.

Doncha just love Navigation Services?

Phil Taylor

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Mac Forum / Programming / Mac Programming / September 2005

Navigation services popup menu