Adds a bezier spline to the current figure of a path
#include <GDIPlus.au3>
_GDIPlus_PathAddBezier ( $hPath, $nX1, $nY1, $nX2, $nY2, $nX3, $nY3, $nX4, $nY4 )
| $hPath | Pointer to a GraphicsPath object |
| $nX1 | X coordinate of the starting point |
| $nY1 | Y coordinate of the starting point |
| $nX2 | X coordinate of the first control point |
| $nY2 | Y coordinate of the first control point |
| $nX3 | X coordinate of the second control point |
| $nY3 | Y coordinate of the second control point |
| $nX4 | X coordinate of the ending point |
| $nY4 | Y coordinate of the ending point |
| Success: | True. |
| Failure: | False and sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPIP_ERR* see GPIPlusConstants.au3). |
A Bezier spline does not pass through its control points. The control points act as magnets, pulling the curve in certain directions to influence the way the spline bends.
Search GdipAddPathBezier in MSDN Library.
#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
Example()
Func Example()
Local $hGUI, $hGraphic, $hPen, $hPath
; Create GUI
$hGUI = GUICreate("GDI+", 400, 300)
GUISetState(@SW_SHOW)
_GDIPlus_Startup()
$hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI) ;Create a graphics object from a window handle
_GDIPlus_GraphicsSetSmoothingMode($hGraphic, $GDIP_SMOOTHINGMODE_HIGHQUALITY) ;Sets the graphics object rendering quality (antialiasing)
_GDIPlus_GraphicsClear($hGraphic, 0xFFFFFFFF)
$hPen = _GDIPlus_PenCreate(0xFF8800AA, 2)
$hPath = _GDIPlus_PathCreate() ;Create new path object
_GDIPlus_PathAddBezier($hPath, 10, 10, 50, 200, 300, 10, 390, 290)
_GDIPlus_GraphicsDrawPath($hGraphic, $hPath, $hPen)
; Loop until the user exits.
Do
Until GUIGetMsg() = $GUI_EVENT_CLOSE
; Clean up resources
_GDIPlus_PathDispose($hPath)
_GDIPlus_PenDispose($hPen)
_GDIPlus_GraphicsDispose($hGraphic)
_GDIPlus_Shutdown()
EndFunc ;==>Example