FrameOverlay Method (MFrameClass)

Overlay (mix) two frames with alpha, the position is from top-left corner, for 4:2:2 images (e.g. UYVY) horz position aligned by two (e.g. 21->20). Note: For ARGB32 images, alpha from images used for mix.

Syntax

VB.Net
C#
Delphi
C++

Public Overridable Sub FrameOverlay( _
   ByVal _pFrameOver As MFrame, _
   ByVal _nPosX As Integer, _
   ByVal _nPosY As Integer, _
   ByVal _dblAlpha As Double, _
   ByVal _bsPropsList As String _
)

public virtual void FrameOverlay( 
   MFrame _pFrameOver,
   int _nPosX,
   int _nPosY,
   double _dblAlpha,
   string _bsPropsList
)

public procedure FrameOverlay( 
    _pFrameOver: MFrame;
    _nPosX: Integer;
    _nPosY: Integer;
    _dblAlpha: Double;
    _bsPropsList: String
); virtual;

public: virtual void FrameOverlay( 
   MFrame* _pFrameOver,
   int _nPosX,
   int _nPosY,
   double _dblAlpha,
   BSTR* _bsPropsList
)

Parameters

_pFrameOver: frame that overlays the source frame
_nPosX: X position of frame
_nPosY: Y position of frame
_dblAlpha: transparency: 0.0 - transparent (no mix), 1.0 - solid
_bsPropsList: additional properties

Example

Reference

MFrameClass Class
MFrameClass Members