TIEPortableDevices.FilenameToIndex
Declaration
function FilenameToIndex(const Filename: WideString): Integer;
Description
Returns the index of the specified filename (without a path) in the
Objects list.
Result is -1 if the ID is not valid.
Note: Filename is case insensitive
// Get the index of an image in the current WPD folder
idx := pd.FilenameToIndex( 'image0909.jpg' );