Looking up an address...

[Chris DiPierro]

I have used the code below successfully to query addressbook for an
address selection dialog, but on OS/3.5 especially it just doesn't work.
The errors are never triggered (err is 0 in all cases), but it just
doesn't launch AddressBook at all. Can anyone spot what's going on?

VoidHand CallAddressApp(CharPtr title, CharPtr keyP)
{
        Err err = 0;
        AddrLookupParamsType params;
        UInt cardNo;
        DWord result;
        LocalID dbID;
        DmSearchStateType searchState;
        char LookupButton[] = "Pick";
        char LookupFormat[] = "^email";

        params.title = title;
        params.pasteButtonText = LookupButton;
        params.formatStringP = LookupFormat;
        params.field1 = addrLookupSortField;
        params.field2 = addrLookupEmail;
        params.field2Optional = false;

        if (keyP) {
                MemSet(params.lookupString, addrLookupStringLength, 0); 
                StrNCopy(params.lookupString, keyP, addrLookupStringLength- 1);
        } else *params.lookupString = 0;

        // Get the card number and database id of the Address application.
        err = DmGetNextDatabaseByTypeCreator (true, &searchState, 
                sysFileTApplication, sysFileCAddress, true, &cardNo,&dbID);
        ErrFatalDisplayIf(err, "Address Book not found!");
        if (!err) {
                err = SysAppLaunch (cardNo, dbID, 0, sysAppLaunchCmdLookup, 
(Ptr)&params, &result);
                ErrFatalDisplayIf(err, "Error sending lookup action to app");
        }

        if (err) return NULL;;
        return (params.resultStringH);
}




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