ref_iface_IVDXFilterPreview_RedoSystem - shekh/VirtualDub2 GitHub Wiki

VirtualDub Plugin SDK 1.2

IVDXFilterPreview interface

IVDXFilterPreview:: RedoSystem

Reinitializes the filter system and then regenerates and redisplays the current frame.

void RedoSystem();

Thread safety

This method is not thread-safe.

Errors

Errors may not be returned from this function (see SetError()).

Remarks

RedoFrame() is used whenever configuration parameters are changed on the filter and the filter system must be initialized to react to the new parameters. Unlike RedoFrame(), RedoSystem() will work whenever parameters that affect downstream filters are changed, such as frame size or format. Because reinitializing the filter system is expensive, this should only be done when necessary.

V14+ only: RedoSystem() also invalidates all frame caches for the filter being configured and all downstream filters. This prevents any cached frames generated with old filter settings from being displayed.