UDF > GDIPlus > GraphicsPath >

_GDIPlus_PathIsVisiblePoint

Détermine si le point spécifié se trouve dans la zone qui est colorée lorsqu'un GraphicsPath est coloré par un objet Graphics spécifié

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

Paramètres

$hPath Handle de l'objet GraphicsPath
$nX Coordonnée X du point à tester
$nY Coordonnée Y du point à tester
$hGraphics [optionnel] Handle de l'objet Graphics qui spécifie une transformation des coordonnées universelles en coordonnées du périphérique. Si 0, le test est

Valeur de retour

Succès: Retourne True si le point se trouve à l'intérieur du tracé, False sinon
Échec: Définit @error <> 0, @extended contient le code erreur GPSTATUS ($GPID_ERR*).

Remarque

Le point à tester est exprimé en coordonnées universelles. La matrice de transformation du paramètre Graphics est appliquée de manière temporaire avant de tester la visibilité du rendu.

Voir aussi

Consultez GdipIsVisiblePathPoint dans la Librairie MSDN.

Exemple

#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