DrawEllipse
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Description

Draws an empty or filled ellipse in the current image frame.


Syntax


[VB]
objActiveDcam.DrawElliplse X1, Y1, X2, Y2, Width, Red [,Green, Blue, Opacity ]


[C/C++]
HRESULT DrawEllipse( short X1, short Y2, short X2, short Y2, short Width, long Red [,long Green, long Blue, short Opacity ]);


Data Types
[VB]

X1, Y1, X2, Y2 : Integer
Width: Integer
Red, Green, Blue: Long
Opacity: Intager


Parameters
[C/C++]

X1 [in], Y1 [in]  
Coordinates of the top left corner of the ellipse's bounding rectangle relative to the image origin.  
X2 [in], Y2 [in]  
Coordinates of the bottom right corner of the ellipse's bounding rectangle relative to the image origin.  
Width [in]  
Width of the line in pixels. If zero, a filled ellipse will be drawn.  
Red [in], Green [in], Blue [in]  
Values specifying the color or intensity of the ellipse. If Green and Blue arguments are omitted, they will be assigned the value of Red.  
Opacity [in]  
An optional integer between 0 and 100 specifying the percentage of opacity at which the ellipse will be blended with the underlying pixels in the image. If omitted, default value of 100 is used.  
 
Return Values

S_OK  
Success  
E_FAIL  
Failure.  

Example


The following VB example embeds a semi-transparent filled ellipse into the live video:

Private Sub
ActiveDcam1_FrameAcquired()

      ActiveDcam1.DrawEllipse 50,100, 300,200, 0, 0, 0, 255, 50

End Sub


Remarks


To draw multiple ellipses, call this method several times.