dontUseQT | |||||||
Type | property | ||||||
Dictionary | LCS | ||||||
Library | LiveCode Script | ||||||
Syntax |
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Associations | player | ||||||
Summary | Disables the ability to use QuickTime. | ||||||
Introduced | 1.0 | ||||||
Changes | The use of QuickTime was deprecated in version 8.1 of LiveCode with new defaults for dontUseQT and dontUseQTEffects as true on all systems apart from pre OS X 10.8. The Windows build of LiveCode no longer supports any QuickTime features and setting the dontUseQT and dontUseQTEffects will have no effect. Additionally QuickTime does not include 64 bit support and therefore can not be supported on OS X 64 bit builds of LiveCode. In LiveCode 6.7.0 the default for dontUseQT was changed from false to true on OS X 10.8 and up because of the implementation of the AVFoundation player on Windows. | ||||||
OS | mac | ||||||
Platforms | desktop | ||||||
Example |
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Values |
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Related | Property: dontUseQTEffects, alwaysBuffer Glossary: property, Windows, command, QuickTime, loaded into memory, Mac OS Command: answer record, answer effect, show, hide Object: stack Function: recordCompressionTypes, qtEffects, qtVersion Control Structure: function | ||||||
Description | On OS X, when dontUseQT is true and the system version is greater than 10.8 players will use the AVFoundation API for multimedia playback. On earlier OS X systems the property has no effect. Setting the dontUseQt property of a player object has no effect on the global property, however, the global property is used as the default for new players. In that way you can have both QuickTime and AVFoundation players playing at the same time. This can be particular useful for supporting some media formats or codecs that are not supported by the default AVFoundation or DirectShow player (for example .midi files, Sorenson Video 3, H.261 codecs etc) The following actions cause QuickTime to be loaded into memory on Mac if dontUseQT is false:
The setting of this property has no effect on Unix and Windows systems. | ||||||
Tags | multimedia |