Apple Newton Utilities Guide de l'utilisateur télécharger pdf (Page 613)

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CHAPTER 16

Find

Using the Find Service 16-25

The following code fragment shows how to use the statusView parameter to

display a progress message to the user:

MyAppplicationBase.Find:=

func(what, results, scope, statusView)

begin

if statusView then

statusView:SetMessage("Searching in" &

GetAppName(kAppSymbol)&

$/u2026);

...

end;

There are several ways to obtain the application name string that replaces the

appName variable; they are listed here in order of recommended use:

■ You can retrieve this string from the appName slot in your application’s base view.

■ You can retrieve this string from the title slot in your ﬁnder frame.

■ You can retrieve this string by calling GetAppName(kAppSymbol);

Registering for Finds 16

Applications registered with the Find service participate in Global ﬁnds; they also

participate in selective ﬁnds when speciﬁed by the user.

You do not need to register with the Find service to support Local ﬁnds. Global

and Local ﬁnd support use the same mechanism, which relies on the

Find and

ShowFoundItem methods that your application supplies. A Global find is simply

a series of Local ﬁnds initiated by the system in applications that have registered

for participation in Global ﬁnds.

Use the

RegFindApps function to register your application with the Find service

and its counterpart, the

UnRegFindApps function, to reverse the effect. You

should call these functions from your application part’s

InstallScript and

RemoveScript functions.

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Apple Newton Utilities Guide de l'utilisateur Page 613

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