TIEGlobalSettings.PreviewAdditionalMultipageExts
Declaration
property PreviewAdditionalMultipageExts: string;
Description
Additional multipage extensions (e.g. 'mpg,mpeg,wmv,avi') for open/save dialogs. Files of the extensions specified will be treated as "multipage" files and their frames can be previewed.
Default: 'mpg,mpeg,wmv,avi'
// Show all frames of video files in Open Image dialog
IEGlobalSettings().PreviewAdditionalMultipageExts := 'mpg,mpeg,wmv,avi';