Function Reference


_GDIPlus_PenGetMiterLimit

Gets the miter length currently set for a Pen object

#include <GDIPlus.au3>
_GDIPlus_PenGetMiterLimit ( $hPen )

Parameters

$hPen Pointer to a Pen object

Return Value

Success: the miter limit of the Pen object.
Failure: -1 and sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPID_ERR*).

Remarks

The miter length is the distance from the intersection of the line walls on the inside of the join to the intersection of the line walls outside of the join.
The miter length can be large when the angle between two lines is small.
The miter limit is the maximum allowed ratio of miter length to line width.

Related

_GDIPlus_PenSetMiterLimit

See Also

Search GdipGetPenMiterLimit in MSDN Library.

Example

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

Example()

Func Example()
    Local $hGUI, $hGraphic, $hPen, $fPenWidth, $hPath

    ; Create GUI
    $hGUI = GUICreate("GDI+", 800, 600)
    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)

    $hPath = _GDIPlus_PathCreate() ;Create new path object
    _GDIPlus_PathAddLine($hPath, 30, 550, 70, 200)
    _GDIPlus_PathAddLine($hPath, 70, 200, 110, 550)

    $fPenWidth = 32

    Local $hPen1 = _GDIPlus_PenCreate(0xFF00FF00, 1)
    For $i = 0 To 6
        _GDIPlus_GraphicsDrawLine($hGraphic, 0, 200 - $fPenWidth * 0.5 * $i, 800, 200 - $fPenWidth * 0.5 * $i, $hPen1)
    Next

    $hPen = _GDIPlus_PenCreate(0xFF8800AA, $fPenWidth)
    For $i = 1 To 6
        _GDIPlus_PenSetMiterLimit($hPen, $i)
        _GDIPlus_GraphicsDrawString($hGraphic, "MiterLimit: " & StringFormat("%.1f", _GDIPlus_PenGetMiterLimit($hPen)), 10, 10)
        _GDIPlus_GraphicsDrawPath($hGraphic, $hPath, $hPen)
        _GDIPlus_GraphicsDrawPath($hGraphic, $hPath, $hPen1)
        _GDIPlus_GraphicsTranslateTransform($hGraphic, 130, 0)
    Next

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

    ; Clean up resources
    _GDIPlus_PathDispose($hPath)
    _GDIPlus_PenDispose($hPen)
    _GDIPlus_PenDispose($hPen1)
    _GDIPlus_GraphicsDispose($hGraphic)
    _GDIPlus_Shutdown()
EndFunc   ;==>Example