Function Reference


Replaces a path with curves that enclose the area that is filled when the path is drawn by a specified pen. The function also flattens the path

#include <GDIPlus.au3>
_GDIPlus_PathWiden ( $hPath, $hPen [, $hMatrix = 0 [, $fFlatness = 0.25]] )


$hPath Pointer to a GraphicsPath object
$hPen Pointer to a Pen object. The path is made as wide as it would be when drawn by this pen. If 0, a solid black pen with a width of 1 will be used
$hMatrix [optional] Pointer to a Matrix object that represents a transformation to be applied along with the widening. If 0, no transformation is applied
$fFlatness [optional] Real number that specifies the maximum error between the path and its flattened approximation.
Reducing the flatness increases the number of line segments in the approximation

Return Value

Success: True.
Failure: False and sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPIP_ERR* see GPIPlusConstants.au3).


_GDIPlus_PathFlatten, _GDIPlus_PathWarp, _GDIPlus_PathWindingModeOutline

See Also

Search GdipWidenPath in MSDN Library.


#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>


Func Example()
        Local $hGUI = GUICreate("GDI+", 800, 400)

        Local $hGraphics = _GDIPlus_GraphicsCreateFromHWND($hGUI)
        _GDIPlus_GraphicsSetSmoothingMode($hGraphics, $GDIP_SMOOTHINGMODE_HIGHQUALITY)
        _GDIPlus_GraphicsClear($hGraphics, 0xFF000000)

        Local $hPath = _GDIPlus_PathCreate()
        Local $hFormat = _GDIPlus_StringFormatCreate()
        _GDIPlus_StringFormatSetAlign($hFormat, 1)
        Local $hFamily = _GDIPlus_FontFamilyCreate("Arial")
        Local $tLayout = _GDIPlus_RectFCreate(0, 0, 800, 400)
        _GDIPlus_PathAddString($hPath, "AutoIt rulez!", $tLayout, $hFamily, 0, 160, $hFormat)

        Local $hPen_Widen = _GDIPlus_PenCreate(0, 8)
        _GDIPlus_PenSetLineJoin($hPen_Widen, $GDIP_PENSETLINEJOIN_ROUND)
        _GDIPlus_PathWiden($hPath, $hPen_Widen)

        Local $hBrush = _GDIPlus_BrushCreateSolid(0xFF8800AA)
        _GDIPlus_GraphicsFillPath($hGraphics, $hPath, $hBrush)

        ; Loop until the user exits.
        Until GUIGetMsg() = $GUI_EVENT_CLOSE

        ; Clean up resources
EndFunc   ;==>Example