Function Reference


_GDIPlus_PathWiden

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]] )

Parameters

$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 ($GPID_ERR*).

Related

_GDIPlus_PathFlatten, _GDIPlus_PathWarp, _GDIPlus_PathWindingModeOutline

See Also

Search GdipWidenPath in MSDN Library.

Example

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

Example()

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

    _GDIPlus_Startup()
    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.
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE

    ; Clean up resources
    _GDIPlus_PenDispose($hPen_Widen)
    _GDIPlus_BrushDispose($hBrush)
    _GDIPlus_StringFormatDispose($hFormat)
    _GDIPlus_FontFamilyDispose($hFamily)
    _GDIPlus_PathDispose($hPath)
    _GDIPlus_GraphicsDispose($hGraphics)
    _GDIPlus_Shutdown()
EndFunc   ;==>Example