JVCL Help:TJvID3Controller.FindNextFrame

 JVCL Help: TJvID3Controller.FindNextFrame Method

TJvID3Controller

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Summary

Returns the next frame in the tag with a specific frame identifier.

Pascal

 functionFindNextFrame(constAFrameID: TJvID3FrameID; varFrom: TJvID3Frame): Boolean;

Parameters

Parameters	Description
const AFrameID: TJvID3FrameID	The frame identifier to search for.
var From: TJvID3Frame	Specifies the frame after which to search for the frame identifier. FindNextFrame sets From to the next frame found or nil if no such frame was found.

Return Value

Returns true when a frame was found, or false otherwise.

Description

Call FindNextFrame to search for the first frame found after the frame specified by From, with AFrameID as frame identifier in the tag.
Example, search for a picture frame with a specific picture type: function FindPictureType(const APictureType: TJvID3PictureType): TJvID3PictureFrame; var


 Frame: TJvID3Frame;
begin

 Result := nil;

 ifnot JvID3v21.FindFirstFrame(fiPicture, Frame) then

   Exit;

 while (Frame isTJvID3PictureFrame) and

       (TJvID3PictureFrame(Frame).PictureType <> AType) do

   JvID3v21.FindNextFrame(fiPicture, Frame);

 if Frame isTJvID3PictureFramethen

   Result := TJvID3PictureFrame(Frame);
end; 

See Also

TJvID3Controller.FindFirstFrame

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