UDF > GDIPlus > Font >

_GDIPlus_FontGetHeight

Obtient l'espacement des lignes d'une police dans l'unité courante d'un objet graphique spécifié

#include <GDIPlus.au3>
_GDIPlus_FontGetHeight ( $hFont, $hGraphics )

Paramètres

$hFont Handle de l'objet Font
$hGraphics Handle de l'objet Graphics

Valeur de retour

Succès: Retourne l'interligne de cette police.
Échec: Retourne 0 et définit @error <> 0, @extended contient le code erreur GPSTATUS ($GPID_ERR*).

Remarque

L'espacement entre les lignes est la distance verticale entre les lignes de base de deux lignes consécutives de texte.
Ainsi, l'espacement de ligne comprend l'espace blanc entre les lignes avec en plus la hauteur du caractère lui-même.

Voir aussi

Consultez GdipGetFontHeight dans la Library MSDN.

Exemple

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

Example()

Func Example()
    ; Crée une GUI
    Local $hGUI = GUICreate("GDI+", 800, 340)
    GUISetState(@SW_SHOW)

    _GDIPlus_Startup()
    Local $hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI)
    _GDIPlus_GraphicsClear($hGraphic, 0xFFFFFFFF)

    Local $hPen = _GDIPlus_PenCreate(0xFF0000FF)
    Local $hBrush = _GDIPlus_BrushCreateSolid(0xFFFF0000)

    Local $hFormat = _GDIPlus_StringFormatCreate()
    Local $hFamily = _GDIPlus_FontFamilyCreate("Arial")
    Local $hFont = _GDIPlus_FontCreate($hFamily, 96, 0)

    Local $sString = ChrW(0x1EF2) & ChrW(0x1EF3)

    Local $iPosX = 50
    Local $iPosY = 50
    Local $aStrDim = _MeasureString($hGraphic, $sString, $hFont, $hFormat, $hFamily)

    _GDIPlus_GraphicsDrawString($hGraphic, "MeasureString", $iPosX, $iPosY - 30)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX, $iPosY - 5, $iPosX, $iPosY + 5, $hPen)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX - 5, $iPosY, $iPosX + 5, $iPosY, $hPen)
    Local $tLayout = _GDIPlus_RectFCreate($iPosX, $iPosY, $aStrDim[4], $aStrDim[5])
    _GDIPlus_GraphicsDrawRect($hGraphic, $iPosX, $iPosY, $aStrDim[4], $aStrDim[5], $hPen)
    _GDIPlus_GraphicsDrawStringEx($hGraphic, $sString, $hFont, $tLayout, $hFormat, $hBrush)

    $iPosX = 300
    _GDIPlus_GraphicsDrawString($hGraphic, "MeasureCharacterRanges", $iPosX, $iPosY - 30)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX, $iPosY - 5, $iPosX, $iPosY + 5, $hPen)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX - 5, $iPosY, $iPosX + 5, $iPosY, $hPen)
    _GDIPlus_GraphicsDrawRect($hGraphic, $iPosX + $aStrDim[0], $iPosY + $aStrDim[1], $aStrDim[2], $aStrDim[3], $hPen)
    DllStructSetData($tLayout, "X", $iPosX)
    _GDIPlus_GraphicsDrawStringEx($hGraphic, $sString, $hFont, $tLayout, $hFormat, $hBrush)

    $iPosX = 550
    _GDIPlus_GraphicsDrawString($hGraphic, "CellAscent / CellDescent", $iPosX, $iPosY - 30)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX, $iPosY - 5, $iPosX, $iPosY + 5, $hPen)
    _GDIPlus_GraphicsDrawLine($hGraphic, $iPosX - 5, $iPosY, $iPosX + 5, $iPosY, $hPen)
    _GDIPlus_GraphicsDrawRect($hGraphic, $iPosX + $aStrDim[0], $iPosY + $aStrDim[1], $aStrDim[2], $aStrDim[7], $hPen)
    _GDIPlus_GraphicsDrawRect($hGraphic, $iPosX + $aStrDim[0], $iPosY + $aStrDim[1] + $aStrDim[7], $aStrDim[2], $aStrDim[8], $hPen)
    DllStructSetData($tLayout, "X", $iPosX)
    _GDIPlus_GraphicsDrawStringEx($hGraphic, $sString, $hFont, $tLayout, $hFormat, $hBrush)

    $sString = "fontsize goes crazy"
    $iPosX = 50
    $iPosY = 300

    Local $sChar
    For $i = 0 To StringLen($sString)

        $sChar = StringLeft($sString, 1)
        $sString = StringTrimLeft($sString, 1)

        If $sChar = " " Then
            $aStrDim = _MeasureString($hGraphic, "_", $hFont, $hFormat, $hFamily)
            $iPosX += $aStrDim[2]
            ContinueLoop
        EndIf

        _GDIPlus_FontDispose($hFont)
        $hFont = _GDIPlus_FontCreate($hFamily, Random(12, 48), 0)
        $aStrDim = _MeasureString($hGraphic, $sChar, $hFont, $hFormat, $hFamily)

        $tLayout = _GDIPlus_RectFCreate($iPosX - $aStrDim[0], $iPosY - $aStrDim[1] - $aStrDim[7], $aStrDim[4], $aStrDim[5])
        _GDIPlus_GraphicsDrawStringEx($hGraphic, $sChar, $hFont, $tLayout, $hFormat, $hBrush)

        $iPosX += $aStrDim[2]
    Next

    ; Boucle jusqu'à ce que l'utilisateur quitte.
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE

    ; Nettoie les ressources
    _GDIPlus_FontDispose($hFont)
    _GDIPlus_FontFamilyDispose($hFamily)
    _GDIPlus_StringFormatDispose($hFormat)
    _GDIPlus_BrushDispose($hBrush)
    _GDIPlus_PenDispose($hPen)
    _GDIPlus_GraphicsDispose($hGraphic)
    _GDIPlus_Shutdown()
EndFunc   ;==>Example

Func _MeasureString($hGraphics, $sString, $hFont, $hFormat, $hFamily, $iStyle = 0)
    Local $tLayout = _GDIPlus_RectFCreate()
    Local $aInfo = _GDIPlus_GraphicsMeasureString($hGraphics, $sString, $hFont, $tLayout, $hFormat)

    Local $aRanges[2][2] = [[1]]
    $aRanges[1][1] = StringLen($sString)
    _GDIPlus_StringFormatSetMeasurableCharacterRanges($hFormat, $aRanges)
    Local $aRegion = _GDIPlus_GraphicsMeasureCharacterRanges($hGraphics, $sString, $hFont, $aInfo[0], $hFormat)
    Local $aBounds = _GDIPlus_RegionGetBounds($aRegion[1], $hGraphics)
    _GDIPlus_RegionDispose($aRegion[1])

    Local $iFontHeight = _GDIPlus_FontGetHeight($hFont, $hGraphics)
    Local $iLineSpacing = _GDIPlus_FontFamilyGetLineSpacing($hFamily, $iStyle)
    Local $iAscent = $iFontHeight / $iLineSpacing * _GDIPlus_FontFamilyGetCellAscent($hFamily, $iStyle)
    Local $iDescent = $iFontHeight / $iLineSpacing * _GDIPlus_FontFamilyGetCellDescent($hFamily, $iStyle)

    Local $aDim[9]
    $aDim[0] = $aBounds[0]
    $aDim[1] = $aBounds[1]
    $aDim[2] = $aBounds[2]
    $aDim[3] = $aBounds[3]
    $aDim[4] = DllStructGetData($aInfo[0], "Width")
    $aDim[5] = DllStructGetData($aInfo[0], "Height")
    $aDim[6] = $iFontHeight
    $aDim[7] = $iAscent
    $aDim[8] = $iDescent

    Return $aDim
EndFunc   ;==>_MeasureString