MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Spezifikationen PDF herunterladen (Seite 205)

When a movie tries to access the camera returned by Camera.get—for example, when you issue

NetStream.attachVideo or Video.attachVideo—the Flash Player displays a Privacy dialog

box that lets the user choose whether to allow or deny access to the camera. (Make sure your

Stage size is at least 215 by 138 pixels; this is the minimum size Flash requires to display the

dialog box.)

When the user responds to this dialog box, the

Camera.onStatus event handler returns an

information object that indicates the user’s response. To determine whether the user has denied or

allowed access to the camera without processing this event handler, use

Camera.muted.

The user can also specify permanent privacy settings for a particular domain by right-clicking

(Windows) or Control-clicking (Macintosh) while a movie is playing, choosing Settings, opening

the Privacy panel, and selecting Remember.

You can’t use ActionScript to set the Allow or Deny value for a user, but you can display the

Privacy panel for the user by using

System.showSettings(0). If the user selects Remember, the

Flash Player no longer displays the Privacy dialog box for movies from this domain.

Camera.get returns null, either the camera is in use by another application, or there are no

cameras installed on the system. To determine whether any cameras are installed, use

Camera.names.length. To display the Flash Player Camera Settings panel, which lets the user

choose the camera to be referenced by

Camera.get, use System.showSettings(3).

Note that scanning the hardware for cameras takes time. Once Flash finds at least one camera, the

hardware is not scanned again for the lifetime of the player instance. However, if Flash doesn’t

find any cameras, it will scan each time

Camera.get is called. This is helpful if a user has

forgotten to connect the camera; if your movie provides a Try Again button that calls

Camera.get, Flash can find the camera without the user having to restart the movie.

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MACROMEDIA FLASH COMMUNICATION SERVER MX-SERVER-SIDE COMMUNICATION ACTIONSCRIPT DICTIONARY Spezifikationen Seite 205