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Back to AVAssetMBS class.

Load Status Constants

AVAssetMBS.AVKeyValueStatusCancelled = 4

Type Topic Plugin Version
const AVFoundation MBS AVFoundation Plugin 13.2
One of the constants to indicate the load status of a property.

Indicates that the attempt to load the property was cancelled.

AVAssetMBS.AVKeyValueStatusFailed = 3

Type Topic Plugin Version
const AVFoundation MBS AVFoundation Plugin 13.2
One of the constants to indicate the load status of a property.

Indicates that the attempt to load the property failed.

AVAssetMBS.AVKeyValueStatusLoaded = 2

Type Topic Plugin Version
const AVFoundation MBS AVFoundation Plugin 13.2
One of the constants to indicate the load status of a property.
Example 
dim f as FolderItem = SpecialFolder.Desktop.Child("test.m4v")
dim a as AVAssetMBS = AVAssetmbs.assetWithFile(f)

if a = nil then
  MsgBox "failed to read file at all"
  Return
end if

// request duration property
a.loadValuesAsynchronouslyForKeys array("duration")

dim e as NSErrorMBS
dim Status as Integer = a.statusOfValueForKey("duration", e)
while status < a.AVKeyValueStatusLoaded
  // wait for loading in background
  status = a.statusOfValueForKey("duration", e)
wend

// got it?
if status <> a.AVKeyValueStatusLoaded then
  MsgBox "Failed to load duration."
  if e <> nil then
    MsgBox e.LocalizedDescription
  end if
  
else
  MsgBox str(a.duration.Seconds)+" seconds long."
end if

Indicates that the property is ready for use.

AVAssetMBS.AVKeyValueStatusLoading = 1

Type Topic Plugin Version
const AVFoundation MBS AVFoundation Plugin 13.2
One of the constants to indicate the load status of a property.

Indicates that the property is not fully loaded.

AVAssetMBS.AVKeyValueStatusUnknown = 0

Type Topic Plugin Version
const AVFoundation MBS AVFoundation Plugin 13.2
One of the constants to indicate the load status of a property.

Indicates that the property status is unknown.

The items on this page are in the following plugins: MBS AVFoundation Plugin.


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