500
preloadNetThing()
Syntax
preloadNetThing (
url
)
Description
Function; preloads a file from the Internet to the local cache so it can be used later without a
download delay. Replace
url
with the name of any valid Internet file, such as a Director movie,
graphic, or FTP server location. The return value is a network ID that you can use to monitor the
progress of the operation.
The Director player for Java doesn’t support this command because Java’s security model doesn’t
allow writing to the local disk.
The
preloadNetThing()
function downloads the file while the current movie continues playing.
Use
netDone()
to find out whether downloading is finished.
After an item is downloaded, it can be displayed immediately because it is taken from the local
cache rather than from the network.
Although many network operations can be active at a time, running more than four concurrent
operations usually slows down performance unacceptably.
Neither the cache size nor the Check Documents option in a browser’s preferences affects the
behavior of the
preloadNetThing
function.
The
preloadNetThing()
function does not parse a Director file’s links. Thus, even if a Director
file is linked to casts and graphic files,
preloadNetThing()
downloads only the Director file. You
still must preload other linked objects separately.
Example
This statement uses
preloadNetThing()
and returns the network ID for the operation:
set mynetid = preloadNetThing("http://www.yourserver.com/menupage/
mymovie.dir")
After downloading is complete, you can navigate to the movie using the same URL. The movie
will be played from the cache instead of the URL, since it’s been loaded in the cache.
See also
netDone()
preLoadRAM
Syntax
the preLoadRAM
Description
System property; specifies the amount of RAM that can be used for preloading a digital video.
This property can be set and tested.
This property is useful for managing memory, limiting digital video cast members to a certain
amount of memory, so that other types of cast members can still be preloaded. When
preLoadRAM
is
FALSE
, all available memory can be used for preloading digital video cast members.
However, it’s not possible to reliably predict how much RAM a digital video will require once it is
preloaded, because memory requirements are affected by the content of the movie, how much
compression was performed, the number of keyframes, changing imagery, and so on.
Summary of Contents for DIRECTOR MX-LINGO DICTIONARY
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