Gets the bounding rectangle for a path
#include <GDIPlus.au3>
_GDIPlus_PathGetWorldBounds ( $hPath [, $hMatrix = 0 [, $hPen = 0]] )
| $hPath | Pointer to a GraphicsPath object |
| $hMatrix | [optional] Pointer to a Matrix object that specifies a transformation to be applied to this path before the bounding rectangle is calculated. The path is not permanently transformed |
| $hPen | [optional] Pointer to a Pen object that influences the size of the bounding rectangle. The bounding rectangle bounds will be large enough to enclose the path when the path is drawn with the specified pen. |
| Success: | an array containing the rectangle coordinates and dimensions: [0] - Rectangle X position [1] - Rectangle Y position [2] - Rectangle Width [3] - Rectangle Height |
| Failure: | sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPIP_ERR* see GPIPlusConstants.au3). |
Search GdipGetPathWorldBounds in MSDN Library.
#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
Example()
Func Example()
Local $iW, $iH, $hGUI, $hGraphic, $hBrush, $hPen, $hPath, $hFamily, $tLayout, $hMatrix, $aBounds
; Create GUI
$iW = 640
$iH = 220
$hGUI = GUICreate("GDI+", $iW, $iH)
GUISetState(@SW_SHOW)
; Draw a string using path
_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, 0xFF000000)
$hBrush = _GDIPlus_BrushCreateSolid(0xFFDD2200)
$hPen = _GDIPlus_PenCreate(0xFFFFBB00, 2)
$hPath = _GDIPlus_PathCreate() ;Create new path object
$hFamily = _GDIPlus_FontFamilyCreate("Arial") ;Create font family object
$tLayout = _GDIPlus_RectFCreate() ;Create string bounding rectangle X=0, Y=0
_GDIPlus_PathAddString($hPath, "Fit to Window", $tLayout, $hFamily) ;Add the outline of the string to the path
; Tranform Path to fit to window
$aBounds = _GDIPlus_PathGetWorldBounds($hPath) ;Get bounding rectangle of the path
$hMatrix = _GDIPlus_MatrixCreate()
_GDIPlus_MatrixTranslate($hMatrix, -$aBounds[0], -$aBounds[1]) ;Translate Matrix to the offset of the bounding rectangle
_GDIPlus_MatrixScale($hMatrix, $iW / $aBounds[2], $iH / $aBounds[3], True) ;Scale Matrix
_GDIPlus_PathTransform($hPath, $hMatrix) ;Translate and Scale Path
_GDIPlus_GraphicsFillPath($hGraphic, $hPath, $hBrush) ;Fill path to graphics handle (GUI)
_GDIPlus_GraphicsDrawPath($hGraphic, $hPath, $hPen) ;Draw path to graphics handle (GUI)
; Tranform Path to center the path
_GDIPlus_PathReset($hPath) ;Reset Path (delete previous string)
_GDIPlus_PathAddString($hPath, "Center", $tLayout, $hFamily, 0, 100, 0) ;Add the outline of the string to the path
$aBounds = _GDIPlus_PathGetWorldBounds($hPath)
_GDIPlus_MatrixSetElements($hMatrix, 1, 0, 0, 1, 0, 0) ;Reset Matrix
_GDIPlus_MatrixTranslate($hMatrix, ($iW / 2) - $aBounds[0] - ($aBounds[2] / 2), ($iH / 2) - $aBounds[1] - ($aBounds[3] / 2))
_GDIPlus_PathTransform($hPath, $hMatrix) ;Translate (offset) Path
_GDIPlus_BrushSetSolidColor($hBrush, 0x7F004488)
_GDIPlus_PenSetColor($hPen, 0xFF00AAFF)
_GDIPlus_GraphicsFillPath($hGraphic, $hPath, $hBrush) ;Fill path to graphics handle (GUI)
_GDIPlus_GraphicsDrawPath($hGraphic, $hPath, $hPen) ;Draw path to graphics handle (GUI)
; Loop until the user exits.
Do
Until GUIGetMsg() = $GUI_EVENT_CLOSE
; Clean up resources
_GDIPlus_MatrixDispose($hMatrix)
_GDIPlus_FontFamilyDispose($hFamily)
_GDIPlus_PathDispose($hPath)
_GDIPlus_PenDispose($hPen)
_GDIPlus_BrushDispose($hBrush)
_GDIPlus_GraphicsDispose($hGraphic)
_GDIPlus_Shutdown()
EndFunc ;==>Example