PreviewEnable Method (MFileClass)

VB.Net
C#
Delphi
C++

Public Overridable Sub PreviewEnable( _
   ByVal _bsChannelID As String, _
   ByVal _bEnableAudio As Integer, _
   ByVal _bEnableVideo As Integer _
)

public virtual void PreviewEnable( 
   string _bsChannelID,
   int _bEnableAudio,
   int _bEnableVideo
)

public procedure PreviewEnable( 
    _bsChannelID: String;
    _bEnableAudio: Integer;
    _bEnableVideo: Integer
); virtual;

public: virtual void PreviewEnable( 
   BSTR* _bsChannelID,
   int _bEnableAudio,
   int _bEnableVideo
)

Parameters

_bsChannelID: channel ID. Reserved for future use. Use empty string (that is "") instead of this parameter.
_bEnableAudio: "0" is to disable audio and "1" is to enable audio in preview
_bEnableVideo: "0" is to disable video and "1" is to enable video in preview

Here is playlist initialization example:

Visual Basic
C#
Delphi

Dim m_objPlaylist As MPlaylistClass = New PlaylistClass()
m_objPlaylist.PreviewWindowSet("", panelPreview.Handle.ToInt32())
m_objPlaylist.PreviewEnable("", 1, 1)
m_objPlaylist.ObjectStart(New Object())

MPlaylistClass m_objPlaylist = new PlaylistClass();
m_objPlaylist.PreviewWindowSet("", panelPreview.Handle.ToInt32());
m_objPlaylist.PreviewEnable("", 1, 1);
m_objPlaylist.ObjectStart(new object());

var
myPlaylist: IMPlaylist;
myPreview: IMPreview;
m_objEvents: TEvents;
myObject: IMObject;
cookie: LONG_PTR;
begin
myPlaylist:= CreateComObject(CLASS_MPlaylist) as IMPlaylist;
myObject:= myPlaylist as IMObject;
myPreview:= myPlaylist as IMPreview;
m_objEvents:= TEvents.Create();
myObject.ObjectCallbackSet(m_objEvents, cookie);
myPreview.PreviewWindowSet('', panelPreview.Handle);
myPreviewEnable('', 1, 1);
end;

Reference

MFileClass Class
MFileClass Members