InFrameProgressEvent

property, read-only

DelphiC++BuilderC#VB.NETC++/Qt

Delphi

property InFrameProgressEvent: Boolean read GetInFrameProgressEvent;

C++Builder

__property bool InFrameProgressEvent = {read=GetInFrameProgressEvent, nodefault};

C#

public bool InFrameProgressEvent { get; }

VB.NET

Public ReadOnly Property InFrameProgressEvent As Boolean

C++/Qt

BOOL GetInFrameProgressEvent ();

Used to know if the OnFrameProgress event is currently occurring. This property is useful e.g. when using a trackbar to track the player position. In this case the TrackBar's OnChange event must not update the TVideoGrabber's player position if this event occurs while the trackbar is updated from the OnFrameProgress event, otherwise a loop back update occurs and the trackbar motion is "jerky". Sample code: procedure TForm1.TrackBar1Change(Sender: TObject); begin if not VideoGrabber1.InFrameProgressEvent then begin VideoGrabber1.PlayerFramePosition := TrackBar1.Position; end; end;