Scripting Reference

The QuickTime Xtra provides the following new properties and functions to control QuickTime sprite icons and sprites.


 center
 
Syntax  SetIconProperty(IconID@"IconTitle", #center,state)

GetIconProperty(IconID@"IconTitle", #center)
Type  Icon property
 
Description  The center property has a visible effect only when the crop property is set to true. The state parameter can have these values:

TRUE The QuickTime movie is cropped around the center of the movie.

FALSE The QuickTime movie is cropped from the top left corner of the movie

The center property can be tested and set.
 

Example  This script sets the setting of the center property of a QuickTime movie named "QT3" to TRUE:

SetIconProperty(@"QT3", #crop,TRUE) -- crop must be TRUE
SetIconProperty(@"QT3", #center,TRUE)
Related Property  crop


controller
 

Syntax  SetIconProperty(IconID@"IconTitle", #controller, state)

GetIconProperty(IconID@"IconTitle", #controller)
Type  Icon property
 
Description  This property shows or hides a QuickTime sprite movie's controller. The state parameter can have these values:

TRUE The QuickTime movie's controller is visible.

FALSE The QuickTime movie's controller is hidden.

The controller property can be tested and set. The QuickTime movie must be set to display direct to screen for the controller to be visible.
 

Example  This script reverses the current setting of the controller property of a QuickTime movie named "Starburst."

state := GetIconProperty(IconID@"StarBurst", #controller)
SetIconProperty(IconID@"StarBurst", #controller, ~state)
Related Property  directToStage

 
crop
 

Syntax  SetIconProperty(IconID@"IconTitle", #crop,state)

GetIconProperty(IconID@"IconTitle", #crop)
Type  Icon property
 
Description  This property affects how a QuickTime movie is displayed in the Presentation window. The state parameter can have these values:

TRUE The QuickTime movie isn't scaled to fit the sprite. It's cropped to fit inside the sprite rectangle.

FALSE The QuickTime movie is scaled—either stretched or shrunk—to fit the sprite

The crop property can be tested and set.
 

Example  This script sets the setting of the crop property of a QuickTime movie named "QT3" to TRUE:

SetIconProperty(@"QT3", #crop,TRUE)
Related Property  center, scale, translation

 
cuePointNames
 

Syntax  GetIconProperty(IconID@"IconTitle", #cuePointNames)
 
Type  Icon property
 
Description 

This property returns a linear list of named cue points set in the QuickTime movie file. If there are no cue points in the file, the value returned is []. Use SoundEdit to insert a cue point in a QuickTime file. SoundEdit uses the term "marker" to refer to the cue points.

Newly imported QuickTime movies have the streaming property set TRUE by default. This means that cue points will be unavailable until the streaming property is set to FALSE.
 

Related Property  mostRecentCuePoint

 
cuePointTimes
 

Syntax  GetIconProperty(IconID@"IconTitle", #cuePointTimes)
 
Type  Icon property
 
Description 

This property returns a linear list of cue point times (in milliseconds) set in the QuickTime movie file. If there are no cue points in the file, the value returned is []. Use SoundEdit to insert a cue point in a QuickTime file. SoundEdit uses the term "marker" to refer to the cue points.

Newly imported QuickTime movies have the streaming property set TRUE by default. This means that cue points will be unavailable until the streaming property is set to FALSE.
 

Related Property  mostRecentCuePoint


currentTime
 

Syntax  GetSpriteProperty(IconID@"IconTitle", #currentTime)
 
Type  Sprite property
 
Description  This property can be used to determine the time elapsed (in milliseconds) from the start of the specified QuickTime movie. The currentTime property can be tested but not set.


digitalVideoType 
 

Syntax  GetIconProperty(IconID@"IconTitle", #digitalVideoType)
 
Type  Icon property
 
Description  This property always returns #quickTime.

 
directToStage
 

Syntax  SetIconProperty(IconID@"IconTitle", #directToStage,state)

GetIconProperty(IconID@"IconTitle", #directToStage)
Type  Icon property
 
Description  This property affects how a QuickTime movie is displayed in the Presentation window. The state parameter can have these values:

TRUE The QuickTime movie plays in front of all other layers. No objects can appear in front of the movie except as a mask.

FALSE The QuickTime movie can appear in any layer in the Presentation window.

The directToStage property can be tested and set.
 

Example  This script sets the setting of the directToStage property of a QuickTime movie named "QT3" to TRUE:

SetIconProperty(@"QT3", #directToStage,TRUE)
Related Property  mask


duration
 

Syntax  GetIconProperty(IconID@"IconTitle", #duration)
 
Type  Icon property
 
Description  This property can be used to determine the QuickTime movie's duration in ticks (60ths of a second). The duration property can be tested but not set.


filename
 

Syntax  SetIconProperty(IconID@"IconTitle", #filename,file)

GetIconProperty(IconID@"IconTitle", #filename)
Type  Icon property
 
Description  This property specifies the QuickTime movie file to display at the specified icon title. The file parameter can be an absolute path, a relative path, or a URL.

The filename property can be tested and set.
 

Example  The following examples show three ways to specify the filename property:

SetIconProperty(@"QT3", #filename, "sample.mov")
SetIconProperty(@"QT3", #filename, "C:\qtvr_example.mov")
SetIconProperty(@"QT3", #filename, ¬
"http://www.apple.com/quicktime/samples/qtvrimages/saumur_multirate.mov")


frameRate
 

Syntax  SetIconProperty(IconID@"IconTitle", #frameRate,rate)


GetIconProperty(IconID@"IconTitle", #frameRate)
Type  Icon property
 
Description  This property specifies the frame rate at which the QuickTime movie at the specified sprite icon is played. The possible values for the rate parameter correspond to the playback options in the QuickTime Xtra Properties dialog box:

-2 plays every frame as fast as possible

-1 plays every frame at the normal rate

0 plays the movie in sync with the soundtrack

A positive number plays the movie at that frame rate


TheframeRate property can be tested and set.
 
invertMask
 

Syntax  SetIconProperty(IconID@"IconTitle", #invertMask,state)

GetIconProperty(IconID@"IconTitle", #invertMask)
Type  Icon property
 
Description  This property controls the way Authorware interprets a QuickTime movie's mask property. The state parameter can have these values:

TRUE The QuickTime movie is drawn in the white pixels of the movie's mask.

FALSE The QuickTime movie is drawn in the black pixels of the movie's mask.

The invertMask property can be tested and set. The default state value is FALSE.

Specify a mask icon using the mask icon property before setting invertMask. The QuickTime movie must be set to display direct to screen for invertMask to have an effect.
 

Example  This script reverses the current setting of the invertMask property of a QuickTime movie named "Starburst."

state := GetIconProperty(IconID@"StarBurst", #invertMask)
SetIconProperty(IconID@"StarBurst", #invertMask, ~state)
Related Property  mask


isPastCuePoint
 

Syntax  CallSprite(IconID@"IconTitle", #isPastCuePoint, cuePointID)
 
Type  Xtra function
 
Description  This function returns the number of times a sprite passes a specified cue point in its file. The cuePointID parameter may be an integer or a name.

If cuePointID is a number, isPastCuePoint returns 1 if the cue point has passed and 0 if it hasn't been passed. For example, if cuePointID is 2, then isPastCuePoint will return 1 if the second cue point in the QuickTime movie has passed.

If cuePointID is a name, isPastCuePoint returns the number of cue points with that name that have passed.

If the value specified for cuePointID doesn't exist in the QuickTime movie, the function returns 0.

The number returned by isPastCuePoint is based on the absolute position of the sprite in the QuickTime movie. For example, if a movie passes cue point Main and then loops and passes Main again, isPastCuePoint returns 1 instead of 2.

When the result of isPastCuePoint is treated as a Boolean value, the function returns TRUE if any cue points identified by cuePointID have passed, and FALSE if no cue points are passed.

Use SoundEdit to insert a cue point in a QuickTime file. SoundEdit uses the term "marker" to refer to the cue points.

Newly imported QuickTime movies have the streaming property set TRUE by default. This means that cue points will be unavailable until the streaming property is set to FALSE.
 

Related Property  cuePointNames, cuePointTimes


loop
 

Syntax  SetIconProperty(IconID@"IconTitle", #loop, state)

GetIconProperty(IconID@"IconTitle", #loop)

Type  Icon property

Description  This property determines whether the specified QuickTime movie is set to loop (TRUE) or not (FALSE).

Example  This script sets the QuickTime movie named "Starburst" to loop.

SetIconProperty(IconID@"StarBurst", #loop, TRUE)


loopBounds
 

Syntax  SetSpriteProperty(IconID@"IconTitle", #loopBounds, [startTime, endTime])

GetSpriteProperty(IconID@"IconTitle", #loopBounds)
Type  Sprite property
 
Description  This property sets the internal loop points for a QuickTime sprite. The loop points are specified as a list:

[startTime, endTime]

The startTime and endTime parameters must meet these requirements:

Both parameters must be integers that specify times in ticks (60ths of a second).
The values must range from 0 to the duration of the QuickTime movie.
The starting time must be less than the ending time.

If any of these requirements is not met, the QuickTime movie loops through its entire duration.

The loopBounds property has no effect if the movie's loop property is set to FALSE. Authorware uses these rules to decide how to loop the movie:

If the ending time specified by loopBounds is reached, the movie loops back to the starting time.
If the end of the movie is reached, the movie loops back to the start of the movie.
Authorware stops when it reaches the ending time specified by loopBounds or the end of the movie, whichever comes first.

The loopBounds property can be tested and set. The default is [0,0].
 

Example  This sprite script sets the starting and ending times for looping within a QuickTime sprite. Notice that the times are set by specifying the number of seconds, which is then converted to ticks by multiplying by 60.

SetSpriteProperty(@"QuickTimeIcon", #loopBounds,[(16 * 60),(32 * 60)])

 
mask
 

Syntax  SetIconProperty(IconID@"IconTitle", #mask, IconID@"IconTitle")
 
Type  Icon property
 
Description  This property specifies the black and white (1-bit) contents of a display or interaction icon to be used as a mask for QuickTime media rendered direct to screen. The QuickTime media appears in the areas where the mask's pixels are black. The mask property allows you to take advantage of the performance advantages of a direct to screen digital video while playing a QuickTime movie in a non-rectangular area. The mask property has no effect on non-direct to screen sprite icons.

Authorware always aligns the upper-left corner of the contents of the mask icon with the upper-left corner of the QuickTime movie sprite. The mask can't be moved and isn't affected by the center or crop properties of its associated icon.

For best results, set a QuickTime icon's mask property before any of its sprites appear in the Presentation window. Setting or changing the mask property while the sprite appears in the Presentation window can have unpredictable results (for example, the mask might appear as a "freeze frame" of the digital video at the moment the mask property took effect).

Masking is an advanced feature; you may need to do some experimentation to achieve your goal.

The mask property can be tested and set. To remove a mask, set the mask property to 0.
 

Example  This script sets a mask for the QuickTime sprite icon named "Peeping Tom" before Authorware begins to draw the sprite.

SetIconProperty(@"Peeping Tom", #mask, @"Keyhole")
Related Property  directToStage, invertMask


mediaBusy
 

Syntax  GetSpriteProperty(IconID@"IconTitle", #mediaBusy)
 
Type  Sprite property
 
Description  This property returns TRUE if the specified QuickTime movie is currently playing. The mediaBusy property can be tested but not set.

 
mediaReady
 

Syntax  GetIconProperty(IconID@"IconTitle", #mediaReady)
 
Type  Icon property
 
Description  This property returns TRUE if the specified QuickTime movie is downloaded and ready to play. The mediaReady property can be tested but not set.

 
mostRecentCuePoint
 

Syntax  GetSpriteProperty(IconID@"IconTitle", #mostRecentCuePoint)
 
Type  Sprite property
 
Description  This property is the number that identifies the most recent cue point passed in the sprite icon. The value is the ordinal number of the cue point. If no cue points have been passed, the value is 0.
 
Related Property  cuePointNames, cuePointTimes


mouseLevel
 

Syntax  SetSpriteProperty(IconID@"IconTitle", #mouseLevel, value)

GetSpriteProperty(IconID@"IconTitle", #mouseLevel)
Type  Sprite property
 
Description  This property controls how Authorware passes mouse clicks on a QuickTime sprite to QuickTime. Without the QuickTime Xtra, Authorware passes mouse clicks only on the QuickTime controller. The ability to pass mouse clicks within the sprite's bounding rectangle can be useful for interactive media such as QuickTime VR. The value parameter can have these values:

#controller passes clicks only on the movie controller. This is the standard behavior without the QuickTime Xtra.

#all passes all mouse clicks within the sprite's bounding rectangle.

#none passes no mouse clicks.

The mouseLevel property can be tested and set. The default value is #controller.
 

Example  This script checks to see if the name of the currently executing icon contains the string "QTVR." If it does, it sets the mouseLevel to #all; otherwise, it sets the mouseLevel to #none.

if Find(" QTVR, IconTitle(ExecutingIconID)) then
        setSpriteProperty(ExecutingIconID, #mouseLevel, #all)
    else
        SetSpriteProperty(ExecutingIconID, #mouseLevel, #none)
end if


mRate
 

Syntax  SetSpriteProperty(IconID@"IconTitle", #mRate, value)

GetSpriteProperty(IconID@"IconTitle", #mRate)
Type  Sprite property
 
Description  This property determines the rate of playback for the QuickTime movie playing in the specified icon. The value parameter can have these values:

1 is normal forward play

-1 is reverse

0 is stop

Higher and lower values are possible. For example, a value of 0.5 causes the digital video to play slower than normal. However, frames may be dropped when the value of mRate exceeds 1, depending on the performance of the computer the movie is playing on.

The mRate property can be tested and set.
 

Example  This script toggles forward and reverse playback for the specified QuickTime movie:

if (GetSpriteProperty(@"QT3", #mRate)) = 1 then
        SetSpriteProperty(@"QT3", #mRate,-1)
    else
        SetSpriteProperty(@"QT3", #mRate,1)
end if


mTime
 

Syntax  SetSpriteProperty(IconID@"IconTitle", #mTime, value)

GetSpriteProperty(IconID@"IconTitle", #mTime)
Type  Sprite property
 
Description  This property determines the current time of a QuickTime movie playing in the specified icon. The value of the mTime property is measured in ticks.

The mTime property can be tested and set.
 

Example  This script restarts the QuickTime movie playing in the "QT3" icon:

SetSpriteProperty(@"QT3", #mTime, 0)


pausedAtStart
 

Syntax  SetIconProperty(IconID@"IconTitle", #pausedAtStart,state)

GetIconProperty(IconID@"IconTitle", #pausedAtStart)
Type  Icon property
 
Description  This property specifies whether the Paused checkbox in the QuickTime Xtra Properties dialog box is checked or not. The state parameter can have these values:

TRUE The Paused checkbox is checked.

FALSE The Paused checkbox is not checked.

The pausedAtStart property can be tested and set.
 

Example  This script sets the pausedAtStart property of a QuickTime movie named "QT3" to TRUE:

SetIconProperty(@"QT3", #pausedAtStart,TRUE)


percentStreamed
 

Syntax  GetIconProperty(IconID@"IconTitle", #percentStreamed)
 
Type  Icon property
 
Description  This property returns a value between 1 and 100 to indicate how much of the QuickTime movie has been downloaded. The percentStreamed property can be tested but not set.
 
Related Property  mediaReady


preload
 

Syntax  SetIconProperty(IconID@"IconTitle", #preload,state)

GetIconProperty(IconID@"IconTitle", #preload)
Type  Icon property
 
Description  This property specifies whether the Enable Preload checkbox in the QuickTime Xtra Properties dialog box is checked or not. The state parameter can have these values:

TRUE The Enable Preload checkbox is checked.

FALSE The Enable Preload checkbox is not checked.

The preload property can be tested and set.
 

Example  This script sets the preload property of a QuickTime movie named "QT3" to TRUE:

SetIconProperty(@"QT3", #preload,TRUE)


QuickTimeVersion
 

Syntax  QuickTimeVersion()
 
Type  Function
 
Description  This function returns a floating-point value that identifies the currently installed version of QuickTime.

Windows users: If there are multiple versions of QuickTime 3.0 or later installed, QuickTimeVersion returns the latest version. If a version before QuickTime 3.0 is installed, QuickTimeVersion returns 2.1.2 regardless of the version installed.
 

Example  This script uses QuickTimeVersion to check whether QuickTime is installed. If QuickTime version 3 or later is installed, Authorware jumps to a file containing a QuickTime video. If QuickTime isn't installed, Authorware jumps to a file that employs traditional Authorware animation.

if QuickTimeVersion() >= 3 then
	JumpFile "SplashVideo"
else
	JumpFile "SplashAnimated"
end if


rotation
 

Syntax  SetIconProperty(IconID@"IconTitle", #rotation, degrees)

GetIconProperty(IconID@"IconTitle", #rotation)

Type  Icon property
 
Description  This property controls the rotation of a QuickTime sprite. This property does not rotate the sprite's bounding rectangle or the sprite's controller. Instead, it rotates the image around the image's center point within the sprite's bounding rectangle.

If the sprite's crop property is set to TRUE, rotating the sprite frequently moves part of the image out of the viewable area; when the sprite's crop property is set to FALSE, the image is scaled to fit within the bounding rectangle (which may cause image distortion).

You specify the rotation in the degrees parameter. The rotation property can be tested and set. The default value is 0.
 

Example  This script rotates a QuickTime sprite 180 degrees.

SpriteRotation := GetIconProperty(IconID@"QuickTime", #rotation)
SetIconProperty(IconID@"QuickTime", #rotation, SpriteRotation + 180)


scale
 

Syntax  SetIconProperty(IconID@"IconTitle", #scale, [xPercent, yPercent])

GetIconProperty(IconID@"IconTitle", #scale)

Type  Icon property

Description  This property controls the scaling of a QuickTime sprite. This property doesn't scale the sprite's bounding rectangle or the sprite's controller. Instead, it scales the image around the image's center point within the bounding rectangle. The scaling is specified as a list containing two percentages:

[xPercent, yPercent]

The xPercent parameter specifies the amount of horizontal scaling; the yPercent parameter specifies vertical scaling.

When the sprite's crop property is set to TRUE, the scale property can be used to simulate zooming within the sprite's bounding rectangle. When the sprite's crop property is set to FALSE, the scale property is ignored.

The scale property can be tested and set. The default value is [100,100].
 

Example  This script zooms in on a QuickTime sprite.

SetIconProperty(IconID@"QT3", #scale,[150,150])

 
setTrackEnabled
 

Syntax  CallSprite(IconID@"IconTitle", #setTrackEnabled, trackNum, state)
 
Type  Xtra function
 
Description  This function determines whether a QuickTime sprite's track is enabled to play. QuickTime version 3 or later supports multiple tracks for video, sound, text, and other media.
 
Example  This script toggles the first track in the sprite icon named "QT3."

if (CallSprite(@"QT3", #trackEnabled,1) ) = 0 then
        CallSprite(@"QT3", #setTrackEnabled,1,TRUE)
    else
        CallSprite(@"QT3", #setTrackEnabled,1,FALSE)
end if


sound
 

Syntax  SetIconProperty(IconID@"IconTitle", #sound,state)

GetIconProperty(IconID@"IconTitle", #sound)
Type  Icon property
 
Description  This property controls the audio output of the specified QuickTime sprite icon. The state parameter can have these values:

TRUE The QuickTime movie's sound is turned on.

FALSE The QuickTime movie's sound is turned off.

The sound property can be tested and set.
 

Example  This script reverses the current setting of the sound property of a QuickTime movie named "Starburst."

state := GetIconProperty(IconID@"StarBurst", #sound)
SetIconProperty(IconID@"StarBurst", #sound, ~state)


streaming
 

Syntax  SetIconProperty(IconID@"IconTitle", #streaming, state)

GetIconProperty(IconID@"IconTitle", #streaming)

Description  QuickTime movies may now be streamed into Authorware. Set streaming to TRUE to enable this feature. This setting is TRUE by default in Authorware 5.1, but FALSE by default for any existing ( Authorware 5.0 and earlier ) QuickTime icons. Note: QuickTime 4 must be installed to enable streaming.

If a streaming QuickTime file contains cuepoints, then you must set the text track to be preloaded (use a QuickTime editor such as MoviePlayerPro to do this). If you do not preload the text track, Authorware will disable the cuepoints in the QuickTime file so it can stream without downloading the entire file. You will need to reload the file after editing the QuickTime movie to preload the cuepoint track.

Newly imported QuickTime movies have the streaming property set TRUE by default. This means that cue points will be unavailable until the streaming property is set to FALSE.

The streaming property can be tested and set.

Example  This script sets the QuickTime movie named "Starburst" to download completely before playing by setting the streaming property to FALSE.

SetIconProperty(IconID@"StarBurst", #streaming, FALSE)


timeScale
 

Syntax  GetIconProperty(IconID@"IconTitle", #timeScale)
 
Type  Icon property
 
Description  This property gives the time unit per second that the QuickTime movie's frames are based on. For example, QuickTime video is measured in 1/600s of a second so the timeScale value is 600. The timeScale property can be tested but not set.


trackCount
 

Syntax  CallSprite(IconID@"IconTitle", #trackCount)
 
Type  Xtra function
 
Description  This function returns the number of tracks in the movie at the specified icon. QuickTime version 3 or later supports multiple tracks for video, sound, text, and other media.
 
Example  This script sets the value of the NumTracks variable to the number of tracks in the sprite icon named "QT3."

NumTracks := CallSprite(@"QT3", #trackCount)


trackEnabled
 

Syntax  CallSprite(IconID@"IconTitle", #trackEnabled, trackNum)
 
Type  Xtra function
 
Description  This function indicates whether the specified track of a digital video is enabled to play. Use the setTrackEnabled function to enable or disable a track.

When trackEnabled is TRUE, the specified track is enabled.
When trackEnabled is FALSE, the specified track is disabled.

 

Example  This script toggles the first track in the sprite icon named "QT3."

if (CallSprite(@"QT3", #trackEnabled,1) ) = 0 then
        CallSprite(@"QT3", #setTrackEnabled,1,TRUE)
    else
        CallSprite(@"QT3", #setTrackEnabled,1,FALSE)
end if


trackNextKeyTime
 

Syntax  CallSprite(IconID@"IconTitle", #trackNextKeyTime, trackNum)
 
Type  Xtra function
 
Description  This function returns the time in ticks (60ths of a second) of the keyframe that follows the current time in the QuickTime movie. The movie's track is specified by trackNum. The returned value can be tested but not set.


trackNextSampleTime
 

Syntax  CallSprite(IconID@"IconTitle", #trackNextSampleTime, trackNum)
 
Type  Xtra function
 
Description  This function returns the time in ticks (60ths of a second) of the next sample that follows the QuickTime movie's current time. It's useful for locating text tracks in a QuickTime movie. The returned value can be tested but not set.


trackPreviousKeyTime
 

Syntax  CallSprite(IconID@"IconTitle", #trackPreviousKeyTime, trackNum)
 
Type  Xtra function
 
Description  This function returns the time in ticks (60ths of a second) of the prior keyframe that precedes the current time in the QuickTime movie. The movie's track is specified by trackNum. The returned value can be tested but not set.


trackPreviousSampleTime
 

Syntax  CallSprite(IconID@"IconTitle", #trackPreviousSampleTime, trackNum)
 
Type  Xtra function
 
Description  This function returns the time in ticks (60ths of a second) of the sample that precedes the QuickTime movie's current time. It is useful for locating text tracks in a QuickTime movie. The returned value can be tested but not set.


trackStartTime
 

Syntax  CallSprite(IconID@"IconTitle", #trackStartTime, trackNum)
 
Type  Xtra function
 
Description  This function returns the start time of the specified track of the specified QuickTime movie in ticks (60ths of a second).
 
Example  This script sets the value of the StartTime variable to the default starting time of the second track in the sprite icon named "QT3."

StartTime := CallSprite(@"QT3", #trackStartTime, 2)


trackStopTime
 

Syntax  CallSprite(IconID@"IconTitle", #trackStopTime, trackNum)
 
Type  Xtra function
 
Description  This function returns the stop time of the specified track of the specified QuickTime movie in ticks (60ths of a second).
 
Example  This script sets the value of the EndTime variable to the default ending time of the second track in the sprite icon named "QT3."

EndTime := CallSprite(@"QT3", #trackStopTime, 2)


trackType
 

Syntax  CallSprite(IconID@"IconTitle", #trackType, trackNum)
 
Type  Xtra function
 
Description  This function returns a symbol to identify the type of the specified track in the movie at the specified icon. QuickTime version 3 or later supports multiple tracks for video, sound, text, and other media. Possible return values include #video, #sound, and #text.
 
Example  This script sets the value of the SoundTrack variable depending on the presence of sound in the second track of the sprite icon named "QT3."

If CallSprite(@"QT3", #trackType, 2) = #sound then
        SoundTrack := "sound available"
    else
        SoundTrack := "no sound available"
end if


trackText
 

Syntax  CallSprite(IconID@"IconTitle", #trackText, trackNum)
 
Type  Xtra function
 
Description  This function returns the text that is at the current time in the specified track of the QuickTime movie. The result is a string value, which can be up to 32K characters long. This function applies to text tracks only.


translation
 

Syntax  SetIconProperty(IconID@"IconTitle", #translation, [xOffset, yOffset])

GetIconProperty(IconID@"IconTitle", #translation)

SetSpriteProperty(IconID@"IconTitle", #translation, [xOffset, yOffset])

GetSpriteProperty(IconID@"IconTitle", #translation)
 

Type  Icon property

Sprite property
 

Description  This property controls the offset of a QuickTime sprite's image within the sprite's bounding box. This offset is expressed in relation to the sprite's default location, as set by its center property. When center is set to TRUE, the sprite is offset relative to the center of the bounding rectangle; when center is set to FALSE, the sprite is offset relative to the upper-left corner of the bounding rectangle. The offset is set as a list:

[xOffset, yOffset]

The xOffset parameter specifies the horizontal offset, in pixels, from the sprite's default location; the yOffset parameter specifies the vertical offset. You can specify offsets as positive or negative integers.

When the sprite's crop property is set to TRUE, the translation property can be used to mask portions of the QuickTime movie by moving them outside the bounding rectangle. When the crop property is set to FALSE, the translation property is ignored and the sprite is always positioned at the upper-left corner of the sprite's rectangle.

The translation property can be tested and set. The default is [0,0].
 

Example  This script assumes that the center property of a 320-pixel-wide QuickTime sprite is set to FALSE. It moves the movie's horizontal translation point to the right edge of the sprite by 10 pixels. This has a "wipe right" effect, moving the sprite out of view to the right each time the script executes.

horizontalPosition := GetSpriteProperty(IconID@"QuickTime", #translation)
if horizontalPosition < 320 then
	SetSpriteProperty(IconID@"QuickTime", #translation, horizontalPosition + [10,0])
end if


video
 

Syntax  SetIconProperty(IconID@"IconTitle", #video,state)

GetIconProperty(IconID@"IconTitle", #video)
Type  Icon property
 
Description  This property enables or disables the video output of the specified QuickTime sprite icon. The state parameter can have these values:

TRUE The QuickTime movie's video is visible.

FALSE The QuickTime movie's video is hidden.

The video property can be tested and set.
 

Example  This script reverses the current setting of the video property of a QuickTime movie named "Starburst."

state := GetIconProperty(IconID@"StarBurst", #video)
SetIconProperty(IconID@"StarBurst", #video, ~state)


volumeLevel
 

Syntax  SetSpriteProperty(IconID@"IconTitle", #volumeLevel,level)

GetSpriteProperty(IconID@"IconTitle", #volumeLevel)
Type  Sprite property
 
Description  This property controls the sound volume of a QuickTime sprite. You can set the sound level from 0 (mute) to 256 (full volume). The volumeLevel property can be tested and set.
 
Example  This script checks if the volumeLevel of the QuickTime sprite is greater than 200. If it is, the script sets the volumeLevel to 150.

if GetSpriteProperty(IconID@"QuickTime", #volumeLevel) > 200 then
	SetSpriteProperty(IconID@"QuickTime", #volumeLevel,150)
end if

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