Converts an array of points from one coordinate space to another
#include <GDIPlus.au3>
_GDIPlus_GraphicsTransformPoints ( $hGraphics, ByRef $aPoints [, $iCoordSpaceTo = 0 [, $iCoordSpaceFrom = 1]] )
| $hGraphics | Pointer to a Graphics object |
| $aPoints | Array of points to be converted: [0][0] - Number of points [1][0] - Point 1 X position [1][1] - Point 1 Y position [2][0] - Point 2 X position [2][1] - Point 2 Y position [n][0] - Point n X position [n][1] - Point n Y position |
| $iCoordSpaceTo | [optional] Destination coordinate space |
| $iCoordSpaceFrom | [optional] Source coordinate space: 0 - World coordinate space, not physical coordinates 1 - Page coordinate space, read-world coordinates 2 - Device coordinate space, physical coordinates |
| Success: | True. |
| Failure: | False and sets the @error flag to non-zero, @extended may contain GPSTATUS error code ($GPIP_ERR* see GPIPlusConstants.au3). |
Search GdipTransformPoints in MSDN Library.
#include <GDIPlus.au3>
#include <GUIConstantsEx.au3>
#include <MsgBoxConstants.au3>
#include <WindowsConstants.au3>
Global $g_hGUI, $g_hGraphics, $g_hBmp_Buffer, $g_hGfx_Buffer, $g_hImage
Global $g_iMouseX, $g_iMouseY
Example()
Func Example()
AutoItSetOption("GUIOnEventMode", 1)
; X64 running support
Local $sWow64 = ""
If @AutoItX64 Then $sWow64 = "\Wow6432Node"
;get AutoIt install dir
Local $sRegPath = "HKLM\SOFTWARE" & $sWow64 & "\AutoIt v3\AutoIt"
Local $sFile = RegRead($sRegPath, "InstallDir") & "\Examples\GUI\logo4.gif"
If Not FileExists($sFile) Then
MsgBox(($MB_SYSTEMMODAL + $MB_ICONHAND), "", $sFile & " not found!", 30)
Exit
EndIf
$g_hGUI = GUICreate("GDI+", 800, 600)
GUISetOnEvent($GUI_EVENT_CLOSE, "_Exit")
GUISetOnEvent($GUI_EVENT_SECONDARYDOWN, "_ResetGraphicsTransform")
GUISetState(@SW_SHOW)
_GDIPlus_Startup()
$g_hGraphics = _GDIPlus_GraphicsCreateFromHWND($g_hGUI)
$g_hBmp_Buffer = _GDIPlus_BitmapCreateFromGraphics(800, 600, $g_hGraphics)
$g_hGfx_Buffer = _GDIPlus_ImageGetGraphicsContext($g_hBmp_Buffer)
$g_hImage = _GDIPlus_ImageLoadFromFile($sFile)
GUIRegisterMsg($WM_LBUTTONDOWN, "WM_LBUTTONDOWN")
GUIRegisterMsg($WM_MOUSEWHEEL, "WM_MOUSEWHEEL")
GUIRegisterMsg($WM_MOUSEMOVE, "WM_MOUSEMOVE")
GUISetState(@SW_SHOW)
_Draw()
While Sleep(10)
WEnd
EndFunc ;==>Example
Func _ResetGraphicsTransform()
_GDIPlus_GraphicsResetTransform($g_hGfx_Buffer)
_Draw()
EndFunc ;==>_ResetGraphicsTransform
Func WM_LBUTTONDOWN($hWnd, $iMsg, $wParam, $lParam)
#forceref $hWnd, $iMsg, $wParam
$g_iMouseX = BitAND($lParam, 0x0000FFFF)
$g_iMouseY = BitShift($lParam, 16)
Return $GUI_RUNDEFMSG
EndFunc ;==>WM_LBUTTONDOWN
Func WM_MOUSEMOVE($hWnd, $iMsg, $wParam, $lParam)
#forceref $hWnd, $iMsg
Switch BitAND($wParam, 0x0000FFFF)
Case 1
Local $iX = BitAND($lParam, 0x0000FFFF)
Local $iY = BitShift($lParam, 16)
_GDIPlus_GraphicsTranslateTransform($g_hGfx_Buffer, $iX - $g_iMouseX, $iY - $g_iMouseY, True)
$g_iMouseX = $iX
$g_iMouseY = $iY
_Draw()
EndSwitch
Return $GUI_RUNDEFMSG
EndFunc ;==>WM_MOUSEMOVE
Func WM_MOUSEWHEEL($hWnd, $iMsg, $wParam, $lParam)
#forceref $hWnd, $iMsg, $lParam
Switch BitAND($wParam, 0x0000FFFF)
Case 1
Local $iAngle = -3
If BitShift($wParam, 16) < 0 Then $iAngle = 3
Local $aMousePos[2][2] = [[1]]
$aMousePos[1][0] = $g_iMouseX
$aMousePos[1][1] = $g_iMouseY
_GDIPlus_GraphicsTransformPoints($g_hGfx_Buffer, $aMousePos)
_GDIPlus_GraphicsTranslateTransform($g_hGfx_Buffer, $aMousePos[1][0], $aMousePos[1][1])
_GDIPlus_GraphicsRotateTransform($g_hGfx_Buffer, $iAngle)
_GDIPlus_GraphicsTranslateTransform($g_hGfx_Buffer, -$aMousePos[1][0], -$aMousePos[1][1])
Case Else
Local $aInfo = GUIGetCursorInfo($g_hGUI)
Local $iScale = 1.1
If BitShift($wParam, 16) < 0 Then $iScale = 0.9
_GDIPlus_GraphicsTranslateTransform($g_hGfx_Buffer, -$aInfo[0], -$aInfo[1], True)
_GDIPlus_GraphicsScaleTransform($g_hGfx_Buffer, $iScale, $iScale, True)
_GDIPlus_GraphicsTranslateTransform($g_hGfx_Buffer, $aInfo[0], $aInfo[1], True)
EndSwitch
_Draw()
Return $GUI_RUNDEFMSG
EndFunc ;==>WM_MOUSEWHEEL
Func _Draw()
_GDIPlus_GraphicsClear($g_hGfx_Buffer, 0xFFFFFFFF)
_GDIPlus_GraphicsDrawImage($g_hGfx_Buffer, $g_hImage, 316, 266)
Local $hPen = _GDIPlus_PenCreate(0xFF0000FF)
_GDIPlus_GraphicsDrawRect($g_hGfx_Buffer, 300, 250, 200, 100, $hPen)
_GDIPlus_PenDispose($hPen)
Local $hBrush = _GDIPlus_BrushCreateSolid(0xFF00007F)
Local $hFormat = _GDIPlus_StringFormatCreate()
_GDIPlus_StringFormatSetAlign($hFormat, 1)
Local $hFamily = _GDIPlus_FontFamilyCreate("Arial")
Local $hFont = _GDIPlus_FontCreate($hFamily, 24, 2)
Local $tLayout = _GDIPlus_RectFCreate(0, 360, 800)
_GDIPlus_GraphicsDrawStringEx($g_hGfx_Buffer, "AutoIt rulez!", $hFont, $tLayout, $hFormat, $hBrush)
_GDIPlus_GraphicsDrawImage($g_hGraphics, $g_hBmp_Buffer, 0, 0)
_GDIPlus_FontDispose($hFont)
$hFont = _GDIPlus_FontCreate($hFamily, 10)
_GDIPlus_StringFormatSetAlign($hFormat, 0)
DllStructSetData($tLayout, "X", 10)
DllStructSetData($tLayout, "Y", 10)
_GDIPlus_GraphicsDrawStringEx($g_hGraphics, "left mousebutton = move graphic", $hFont, $tLayout, $hFormat, $hBrush)
DllStructSetData($tLayout, "Y", 30)
_GDIPlus_GraphicsDrawStringEx($g_hGraphics, "mousewheel = zoom graphic", $hFont, $tLayout, $hFormat, $hBrush)
DllStructSetData($tLayout, "Y", 50)
_GDIPlus_GraphicsDrawStringEx($g_hGraphics, "mousewheel + left mousebutton = rotate graphic", $hFont, $tLayout, $hFormat, $hBrush)
DllStructSetData($tLayout, "Y", 70)
_GDIPlus_GraphicsDrawStringEx($g_hGraphics, "right mousebutton = reset", $hFont, $tLayout, $hFormat, $hBrush)
Local $hMatrix = _GDIPlus_MatrixCreate()
_GDIPlus_GraphicsGetTransform($g_hGfx_Buffer, $hMatrix)
Local $aMatrix_Values = _GDIPlus_MatrixGetElements($hMatrix)
_GDIPlus_MatrixDispose($hMatrix)
DllStructSetData($tLayout, "Y", 110)
_GDIPlus_GraphicsDrawStringEx($g_hGraphics, "Matrix:", $hFont, $tLayout, $hFormat, $hBrush)
DllStructSetData($tLayout, "X", 20)
DllStructSetData($tLayout, "Y", 130)
_GDIPlus_GraphicsDrawStringEx($g_hGraphics, StringFormat("%.2f %.2f", $aMatrix_Values[0], $aMatrix_Values[1]), $hFont, $tLayout, $hFormat, $hBrush)
DllStructSetData($tLayout, "Y", 150)
_GDIPlus_GraphicsDrawStringEx($g_hGraphics, StringFormat("%.2f %.2f", $aMatrix_Values[2], $aMatrix_Values[3]), $hFont, $tLayout, $hFormat, $hBrush)
DllStructSetData($tLayout, "Y", 170)
_GDIPlus_GraphicsDrawStringEx($g_hGraphics, StringFormat("%.2f %.2f", $aMatrix_Values[4], $aMatrix_Values[5]), $hFont, $tLayout, $hFormat, $hBrush)
_GDIPlus_FontDispose($hFont)
_GDIPlus_FontFamilyDispose($hFamily)
_GDIPlus_StringFormatDispose($hFormat)
_GDIPlus_BrushDispose($hBrush)
EndFunc ;==>_Draw
Func _Exit()
_GDIPlus_ImageDispose($g_hImage)
_GDIPlus_GraphicsDispose($g_hGfx_Buffer)
_GDIPlus_BitmapDispose($g_hBmp_Buffer)
_GDIPlus_GraphicsDispose($g_hGraphics)
_GDIPlus_Shutdown()
GUIDelete($g_hGUI)
Exit
EndFunc ;==>_Exit