Ellipse Function

Declare Function Ellipse Lib "gdi32.dll" (ByVal hdc As Long, ByVal X1 As Long, ByVal Y1 As Long, ByVal X2 As Long, ByVal Y2 As Long) As Long

Platforms: Win32s, Win 95/98, Win NT

Ellipse draws an ellipse on a device. The two coordinate pairs passed to the function are not part of the ellipse itself, but define its bounding rectangle. The bounding rectangle is the smallest possible rectangle containing the ellipse. The ellipse is drawn using the device's current drawing color and is filled using the current filling color and brush, if any. The function returns 0 if it fails, or 1 if it succeeds.

hdc

The device context of the object to draw on.

X1

The x coordinate of the bounding rectangle's upper-left corner.

Y1

The y coordinate of the bounding rectangle's upper-left corner.

X2

The x coordinate of the bounding rectangle's lower-right corner.

Y2

The y coordinate of the bounding rectangle's lower-right corner.

Example:

' Draw a red ellipse with bounding rectangle (25,30)-(100,75)
' on PictureBox1
Dim retval As Long  ' return value

PictureBox1.ForeColor = RGB(255, 0, 0)  ' set color to draw in to red
retval = Ellipse(PictureBox1.hdc, 25, 30, 100, 75)

See Also: AngleArc, Arc, ArcTo, Chord, Pie
Category: Filled Shapes

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