Function Reference


_GDIPlus_PathIsOutlineVisiblePoint

Determines whether a specified point touches the outline of a path with the specified Graphics and Pen

#include <GDIPlus.au3>
_GDIPlus_PathIsOutlineVisiblePoint ( $hPath, $nX, $nY [, $hPen = 0 [, $hGraphics = 0]] )

Parameters

$hPath Pointer to a GraphicsPath object
$nX X coordinate of the point to test
$nY Y coordinate of the point to test
$hPen [optional] Pointer to a Pen object that define the width of point to test. If 0, a solid black pen with a width of 1 will be used
$hGraphics [optional] Pointer to a Graphics object that specifies a world-to-device transformation. If 0, the test is done in world coordinates; otherwise, the test is done in device coordinates.

Return Value

Success: True if the point touches the outline of the path,
False otherwise.
Failure: sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPID_ERR*).

See Also

Search GdipIsOutlineVisiblePathPoint in MSDN Library.

Example

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

Global $g_hGUI
Global $g_hGraphics, $g_hBmp_Buffer, $g_hGfx_Bufffer, $g_hBrush_NA, $g_hBrush_A, $g_hPen_NA, $g_hPen_A
Global $g_hPath, $g_hFormat, $g_hFamily

Example()

Func Example()
    AutoItSetOption("GUIOnEventMode", 1)

    Local Const $iW = 640, $iH = 240
    Local $tLayout

    $g_hGUI = GUICreate("GDI+", $iW, $iH)
    GUISetOnEvent($GUI_EVENT_CLOSE, "_Exit")
    GUISetOnEvent($GUI_EVENT_MOUSEMOVE, "_MouseMove")
    GUISetState(@SW_SHOW)

    _GDIPlus_Startup()
    $g_hGraphics = _GDIPlus_GraphicsCreateFromHWND($g_hGUI)
    $g_hBmp_Buffer = _GDIPlus_BitmapCreateFromGraphics($iW, $iH, $g_hGraphics)
    $g_hGfx_Bufffer = _GDIPlus_ImageGetGraphicsContext($g_hBmp_Buffer)
    _GDIPlus_GraphicsSetSmoothingMode($g_hGfx_Bufffer, $GDIP_SMOOTHINGMODE_HIGHQUALITY)

    $g_hBrush_NA = _GDIPlus_BrushCreateSolid(0xFF000066)
    $g_hBrush_A = _GDIPlus_BrushCreateSolid(0xFF00FF00)
    $g_hPen_NA = _GDIPlus_PenCreate(0xFF666600, 4)
    $g_hPen_A = _GDIPlus_PenCreate(0xFF00FF00, 4)

    $g_hPath = _GDIPlus_PathCreate()

    $g_hFormat = _GDIPlus_StringFormatCreate()
    _GDIPlus_StringFormatSetAlign($g_hFormat, 1)
    $g_hFamily = _GDIPlus_FontFamilyCreate("Arial Black")
    $tLayout = _GDIPlus_RectFCreate(0, 0, $iW, $iH)
    _GDIPlus_PathAddString($g_hPath, "move mouse" & @LF & "over text", $tLayout, $g_hFamily, 0, 72, $g_hFormat)

    _MouseMove()

    While Sleep(10)
    WEnd
EndFunc   ;==>Example

Func _MouseMove()
    Local $sInfo = ""
    Local $aMouse = GUIGetCursorInfo()

    _GDIPlus_GraphicsClear($g_hGfx_Bufffer, 0xFF000000)
    _GDIPlus_GraphicsFillPath($g_hGfx_Bufffer, $g_hPath, $g_hBrush_NA)
    _GDIPlus_GraphicsDrawPath($g_hGfx_Bufffer, $g_hPath, $g_hPen_NA)
    Select
        Case _GDIPlus_PathIsOutlineVisiblePoint($g_hPath, $aMouse[0], $aMouse[1], $g_hPen_A, $g_hGfx_Bufffer)
            _GDIPlus_GraphicsDrawPath($g_hGfx_Bufffer, $g_hPath, $g_hPen_A)
            $sInfo = "mouse cursor touches path outline"
        Case _GDIPlus_PathIsVisiblePoint($g_hPath, $aMouse[0], $aMouse[1], $g_hGraphics)
            _GDIPlus_GraphicsFillPath($g_hGfx_Bufffer, $g_hPath, $g_hBrush_A)
            $sInfo = "mouse cursor in path fill area"
    EndSelect

    ToolTip($sInfo)
    _GDIPlus_GraphicsDrawImage($g_hGraphics, $g_hBmp_Buffer, 0, 0)
EndFunc   ;==>_MouseMove

Func _Exit()
    _GDIPlus_FontFamilyDispose($g_hFamily)
    _GDIPlus_StringFormatDispose($g_hFormat)
    _GDIPlus_PathDispose($g_hPath)
    _GDIPlus_BrushDispose($g_hBrush_NA)
    _GDIPlus_BrushDispose($g_hBrush_A)
    _GDIPlus_PenDispose($g_hPen_NA)
    _GDIPlus_PenDispose($g_hPen_A)

    _GDIPlus_GraphicsDispose($g_hGfx_Bufffer)
    _GDIPlus_BitmapDispose($g_hBmp_Buffer)
    _GDIPlus_GraphicsDispose($g_hGraphics)
    _GDIPlus_Shutdown()
    GUIDelete($g_hGUI)
    Exit
EndFunc   ;==>_Exit