CGpGraphics.DrawBeziermethod

Draws a Bézier spline.

GraphicsmethodCGpGraphics.incdocumented

Syntax

FUNCTION DrawBezier (BYVAL pPen AS CGpPen PTR, BYVAL x1 AS SINGLE, BYVAL y1 AS SINGLE, BYVAL x2 AS SINGLE, BYVAL y2 AS SINGLE, BYVAL x3 AS SINGLE, BYVAL y3 AS SINGLE, BYVAL x4 AS SINGLE, BYVAL y4 AS SINGLE) AS GpStatus

FUNCTION DrawBezier (BYVAL pPen AS CGpPen PTR, BYVAL x1 AS INT_, BYVAL y1 AS INT_, BYVAL x2 AS INT_, BYVAL y2 AS INT_, BYVAL x3 AS INT_, BYVAL y3 AS INT_, BYVAL x4 AS INT_, BYVAL y4 AS INT_) AS GpStatus

FUNCTION DrawBezier (BYVAL pPen AS CGpPen PTR, BYVAL pt1 AS GpPointF) AS GpStatus

FUNCTION DrawBezier (BYVAL pPen AS CGpPen PTR, BYVAL pt1 AS GpPoint) AS GpStatus

Parameters

Name		Description
`pPen`		Pointer to a pen that is used to draw the Bézier spline.
`x1`		The x-coordinate of the starting point of the Bézier spline.
`y1`		The y-coordinate of the starting point of the Bézier spline.
`x2`		The x-coordinate of the first control point of the Bézier spline.
`y2`		The y-coordinate of the first control point of the Bézier spline.
`x3`		The x-coordinate of the second control point of the Bézier spline.
`y3`		The y-coordinate of the second control point of the Bézier spline.
`x4`		The x-coordinate of the ending point of the Bézier spline.
`y4`		The y-coordinate of the ending point of the Bézier spline.

Return value

If the function succeeds, it returns StatusOk, which is an element of the GpStatus enumeration.

If the function fails, it returns one of the other elements of the GpStatus enumeration.

Description

Draws a Bézier spline.

Example

' ======================================================================================== ' The following example draws a Bézier curve. ' ======================================================================================== SUB Example_DrawBezier (BYVAL hdc AS HDC)

' // Create a graphics object from the window device context DIM graphics AS CGpGraphics = hdc ' // Get the DPI scaling ratio DIM rxRatio AS SINGLE = graphics.GetDpiX / 96 DIM ryRatio AS SINGLE = graphics.GetDpiY / 96 ' // Set the scale transform graphics.ScaleTransform(rxRatio, ryRatio)

' // Draw the curve. DIM greenPen AS CGpPen = ARGB_LIGHTGREEN graphics.DrawBezier(@greenPen, 100.0, 100.0, 200.0, 10.0, 350.0, 50.0, 500.0, 100.0)

' // Draw the end points and control points. DIM redBrush AS CGpSolidBrush = ARGB_RED DIM blueBrush AS CGpSolidBrush = ARGB_BLUE graphics.FillEllipse(@redBrush, 100 - 5, 100 - 5, 10, 10) graphics.FillEllipse(@redBrush, 500 - 5, 100 - 5, 10, 10) graphics.FillEllipse(@blueBrush, 200 - 5, 10 - 5, 10, 10) graphics.FillEllipse(@blueBrush, 350 - 5, 50 - 5, 10, 10)

END SUB ' ========================================================================================

Reference

Include file CGpGraphics.inc
Defined in AfxNova/CGpGraphics.inc:495
Documented in Graphics/GdiPlus Classes/CGpGraphics Classes.md
Topic: CGpGraphics Class