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wakillon

_GDIPlus_PathGetWorldBounds Question

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

Example()

Func Example()
    Local $hGUI, $hGraphic, $hBrush, $hPen, $hPen2, $hPath, $aBounds
    ; Create GUI
    $hGUI = GUICreate("GDI+", 800, 300)
    GUISetState(@SW_SHOW)
    _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, 0xFFFFFFFF)
    $hBrush = _GDIPlus_BrushCreateSolid(0x7F8800AA)
    $hPen = _GDIPlus_PenCreate ( 0xFF8800AA, 1 )
    $hPen2 = _GDIPlus_PenCreate ( 0xFFFF0000, 1 )

;~  Local $aPoints = [[4,0],[0,0],[0,99],[99,99],[99,0]]
;~  Local $aPoints = [[4,0],[1,1],[1,2],[2,2],[2,1]]
;~  Local $aPoints = [[4,0],[100,100],[100,209],[209,209],[209,100]]
    Local $aPoints = [[4,0],[101,101],[101,200],[200,200],[200,101]]

    $hPath = _GDIPlus_PathCreate() ;Create new path object
    _GDIPlus_PathAddPolygon($hPath, $aPoints)
    $aBounds = _GDIPlus_PathGetWorldBounds($hPath)
    ConsoleWrite ( '+ $aBounds[x] : ' & $aBounds[0] & ', $aBounds[y] : ' & $aBounds[1] & ', $aBounds[w] : ' & $aBounds[2] & ', $aBounds[h] : ' & $aBounds[3] & @Crlf )
    For $i = 1 To $aPoints[0][0]
        _GDIPlus_GraphicsDrawRect($hGraphic, $aPoints[$i][0] - 2, $aPoints[$i][1] - 2, 4, 4, $hPen2)
    Next
    _GDIPlus_GraphicsFillPath($hGraphic, $hPath, $hBrush) ;Fill path to graphics handle (GUI)
    _GDIPlus_GraphicsDrawPath($hGraphic, $hPath, $hPen) ;Draw path to graphics handle (GUI)

;~  $hRegion = _GDIPlus_RegionCreateFromPath ( $hPath )
;~  $aBounds = _GDIPlus_RegionGetBounds ( $hRegion, $hGraphic )
;~  ConsoleWrite ( '+ $aBounds[x] : ' & $aBounds[0] & ', $aBounds[y] : ' & $aBounds[1] & ', $aBounds[w] : ' & $aBounds[2] & ', $aBounds[h] : ' & $aBounds[3] & @Crlf )

    ; Loop until the user exits.
    Do
    Until GUIGetMsg() = $GUI_EVENT_CLOSE
    ; Clean up resources
    _GDIPlus_PathDispose($hPath)
    _GDIPlus_BrushDispose($hBrush)
    _GDIPlus_PenDispose($hPen)
    _GDIPlus_PenDispose($hPen2)
    _GDIPlus_GraphicsDispose($hGraphic)
    _GDIPlus_Shutdown()
EndFunc   ;==>Example

The width and height return by _GDIPlus_PathGetWorldBounds function seems to be false...

Is it me or something is wrong ?


AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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mikell

$aPoints = [[4,0],[101,101],[101,200],[200,200],[200,101]]
+ $aBounds[x] : 101, $aBounds[y] : 101, $aBounds[w] : 99, $aBounds[h] : 99

101 + 99 = 200 ?

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UEZ

@wakillon: what do you expect as the result?


Please don't send me any personal message and ask for support! I will not reply!

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wakillon

 mikell and UEZ

Local $aPoints = [[4,0],[0,0],[0,99],[99,99],[99,0]] ; Result should be 100 instead of 99
Local $aPoints = [[4,0],[1,1],[1,2],[2,2],[2,1]] ;  ;  Result should be 2 instead of 1
Local $aPoints = [[4,0],[100,100],[100,209],[209,209],[209,100]] ; Result should be 110 instead of 109
Local $aPoints = [[4,0],[101,101],[101,200],[200,200],[200,101]] ; Result should be 100 instead of 99

I can understand it can look confuse, but coordinates are based 0, but not dimensions.

 


AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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UEZ

For

Local $aPoints = [[4,0],[100,100],[100,100],[100,100],[100,100]]

w = 0, h = 0

 

Local $aPoints = [[4,0],[100,100],[100,100],[100,100],[100,101]]

w = 0, h = 1

 

Local $aPoints = [[4,0],[100,100],[101,100],[100,100],[100,101]]

w = 1, h = 1

 

Width and height are just added to the coordinate which are zero based.

Local $aPoints = [[4,0],[100,100],[100,100],[100,100],[200,101]]

w = 100, h = 1

 

When w = 0 and h = 0 then nothing will be displayed. To display a something either w or h must be greater than 0.


Please don't send me any personal message and ask for support! I will not reply!

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wakillon

Are you sure ?

For example 

Local $aPoints = [[4,0],[1,1],[1,2],[2,2],[2,1]]  is a square of 4 pixels (2x2 )

20160421090814hmkpb.jpg 

but result is 1 instead of 2


AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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UEZ

No, the width and height is 1 and not 2 as you think. I know what you mean but internally it's not calculated that way.

E.g.

_GDIPlus_PathAddRectangle($hPath, 0, 0, 0, 0), _GDIPlus_PathAddRectangle($hPath, 0, 0, 0, 1), _GDIPlus_PathAddRectangle($hPath, 0, 0, 1, 0) result is always

w = 0, h = 0

whereas _GDIPlus_PathAddRectangle($hPath, 0, 0, 1, 1)

w = 1, h = 1 which are 4 pixels at 0,0.

 

Edited by UEZ

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wakillon

This is not logic !

When i zoom on the gui, i see well a width and a height of 2

2016042110433166jyn.jpg

What's the interest of this method of calcul ?


AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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UEZ
13 minutes ago, wakillon said:

What's the interest of this method of calcul ?

I don't know ¯\_(ツ)_/¯ - only MS knows...

 


Please don't send me any personal message and ask for support! I will not reply!

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The own fart smells best!
Her 'sikim hıyar' diyene bir avuç tuz alıp koşma!
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wakillon

So, in conclusion, you assure that the function works well despite the false result ?

It is incomprehensible ! 


AutoIt 3.3.14.2 X86 - SciTE 3.6.0WIN 8.1 X64 - Other Example Scripts

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UEZ

Well, I assume the logic how the width and height is calculated is different. Probably the coders smoked some shit before coding that stuff.

You cannot set only one pixel using the draw functions. Width and height is always somehow added to the x,y position.

 


Please don't send me any personal message and ask for support! I will not reply!

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¯\_(ツ)_/¯  ٩(●̮̮̃•̃)۶ ٩(-̮̮̃-̃)۶ૐ

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MouseGetPos(1))) WEnd UpdateCtrlPos($bAnim) EndIf Case $__g_iLabel_BM GUISetCursor(11, 1, $__g_hGUI_MarkArea) If $aCI[2] Then $aOldWinPos = WinGetPos($__g_hGUI_MarkArea) $aOldMPos = MouseGetPos() While $aCI[2] * Sleep(10) $aCI = GUIGetCursorInfo($__g_hGUI_MarkArea) WinMove($__g_hGUI_MarkArea, "", $aOldWinPos[0], $aOldWinPos[1], $aOldWinPos[2], $aOldWinPos[3] - ($aOldMPos[1] - MouseGetPos(1))) WEnd UpdateCtrlPos($bAnim) EndIf Case Else GUISetCursor(3, 1, $__g_hGUI_MarkArea) EndSwitch EndIf Until False EndFunc ;==>_GDIPlus_MarkScreenRegionAnimated Func UpdateCtrlPos($bAnim = True) Local Const $aGUIStartPos = WinGetPos($__g_hGUI_MarkArea) If $__g_bSelectionDone And $bAnim Then GUIRegisterMsg($WM_TIMER, "") $__g_iW = $aGUIStartPos[2] $__g_iH = $aGUIStartPos[3] ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_TL, 0, 0, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_TM, ($__g_iW - $__g_iBorder) / 2, 0, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_TR, ($__g_iW - $__g_iBorder - $__g_iBorder / 2), 0, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_LM, 0, ($__g_iH - $__g_iBorder) / 2, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_RM, ($__g_iW - $__g_iBorder - $__g_iBorder / 2), ($__g_iH - $__g_iBorder) / 2, $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_BL, 0, ($__g_iH - $__g_iBorder - $__g_iBorder / 2), $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_BM, ($__g_iW - $__g_iBorder) / 2, ($__g_iH - $__g_iBorder - $__g_iBorder / 2), $__g_iBorder, $__g_iBorder) ControlMove($__g_hGUI_MarkArea, "", $__g_iLabel_BR, ($__g_iW - $__g_iBorder - $__g_iBorder / 2), ($__g_iH - $__g_iBorder - $__g_iBorder / 2), $__g_iBorder, $__g_iBorder) If $__g_bSelectionDone And $bAnim Then GUIRegisterMsg($WM_TIMER, "PlayBorderAnim") EndFunc ;==>UpdateCtrlPos Func PlayBorderAnim() Local $aWinPos = WinGetClientSize($__g_hGUI_MarkArea), $iW = $aWinPos[0], $iH = $aWinPos[1] Local Static $fOffset = 0 Local Const $iSize = $__g_iBorder / 2 Local Const $hDC = _WinAPI_GetDC($__g_hGUI_MarkArea) Local Const $hHBitmap = _WinAPI_CreateCompatibleBitmap($hDC, $iW, $iH) Local Const $hDC_backbuffer = _WinAPI_CreateCompatibleDC($hDC) Local Const $DC_obj = _WinAPI_SelectObject($hDC_backbuffer, $hHBitmap) Local Const $hCanvas = _GDIPlus_GraphicsCreateFromHDC($hDC_backbuffer) Local Const $hPen = _GDIPlus_PenCreate(0xFF0178D7, $iSize), $hPen2 = _GDIPlus_PenCreate(0xFFFFFFFF, $iSize), _ $hBrush = _GDIPlus_BrushCreateSolid(0xFF000000 + $__g_iColor_ResizeDots), $hPen3 = _GDIPlus_PenCreate(0xFF000000) _GDIPlus_PenSetDashStyle($hPen, $GDIP_DASHSTYLEDASHDOT) _GDIPlus_GraphicsClear($hCanvas, 0xFFABCDEF) ;for faster performance direct dll calls DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen2, "float", 1 + $iSize, "float", 1 + $iSize, "float", $iW - 2 * $iSize - 2, "float", $iH - 2 * $iSize - 2) DllCall($__g_hGDIPDll, "int", "GdipSetPenDashOffset", "handle", $hPen, "float", $fOffset) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen, "float", 1 + $iSize, "float", 1 + $iSize, "float", $iW - 2 * $iSize - 2, "float", $iH - 2 * $iSize - 2) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", 0, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", 0, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) / 2, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) / 2, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) - 2, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) - 2, "float", 0, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", 0, "float", ($iH - $__g_iBorder) / 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", 0, "float", ($iH - $__g_iBorder) / 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) - 2, "float", ($iH - $__g_iBorder) / 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) - 2, "float", ($iH - $__g_iBorder) / 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", 0, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", 0, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) / 2, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) / 2, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipFillRectangle", "handle", $hCanvas, "handle", $hBrush, "float", ($iW - $__g_iBorder) - 2, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) DllCall($__g_hGDIPDll, "int", "GdipDrawRectangle", "handle", $hCanvas, "handle", $hPen3, "float", ($iW - $__g_iBorder) - 2, "float", ($iH - $__g_iBorder) - 2, "float", $__g_iBorder + 1, "float", $__g_iBorder + 1) _WinAPI_BitBlt($hDC, 0, 0, $iW, $iH, $hDC_backbuffer, 0, 0, $SRCCOPY) $fOffset += 0.5 _GDIPlus_GraphicsDispose($hCanvas) _WinAPI_SelectObject($hDC_backbuffer, $DC_obj) _WinAPI_DeleteDC($hDC_backbuffer) _WinAPI_DeleteObject($hHBitmap) _WinAPI_ReleaseDC($__g_hGUI_MarkArea, $hDC) _GDIPlus_PenDispose($hPen) _GDIPlus_PenDispose($hPen2) _GDIPlus_PenDispose($hPen3) _GDIPlus_BrushDispose($hBrush) EndFunc ;==>PlayBorderAnim Func WM_ERASEBKGND($hWnd, $iMsgm, $wParam, $lParam) ;suppress repainting to avoid flickering but causes some other side effects #forceref $iMsgm, $wParam, $lParam Local Const $hBrush = _WinAPI_CreateSolidBrush(0xEFCDAB) ;BGR format ;~ _WinAPI_RedrawWindow($__g_hGUI_MarkArea, 0, 0, BitOR($RDW_NOERASE, $RDW_NOCHILDREN, $RDW_NOFRAME, $RDW_VALIDATE)) _WinAPI_SetClassLongEx($__g_hGUI_MarkArea, $GCL_HBRBACKGROUND, $hBrush) _WinAPI_DeleteObject($hBrush) Return 0 EndFunc ;==>WM_ERASEBKGND  
      Just press the lmb and move your mouse. When lmb is released you can adjust the size of the window by dragging the white rectangle to any direction. Rmb will move the marked area.
      Press ESC to get the coordinates of the marked region.
      If you have any improvements, please post it here.
       
      Tested on Win10 x64 only.
       
    • badcoder123
      By badcoder123
      I was looking around the help file and I came across _GDIPlus_GraphicsDrawRect and _WinAPI_DrawLine and I seem to be having the same "problem" where every time it draws into a window and you lose or gain focus it has to redraw itself. Is there anyway around this? 
      #include <WindowsConstants.au3> #include <WinAPI.au3> #Include <GDIPlus.au3> _GDIPlus_Startup() Run("notepad.exe") $hWnd = WinWait("Untitled") $hGraphic = _GDIPlus_GraphicsCreateFromHWND($hWnd) $Color = 0xFFFF0000 $hPen = _GDIPlus_PenCreate($Color, 2) For $i = 1 To 10 _GDIPlus_GraphicsDrawRect($hGraphic, 200, 200, 25 ,25, $hPen) ToolTip($i) Sleep(1000) Next _WinAPI_RedrawWindow($hWnd, 0, 0, $RDW_INVALIDATE + $RDW_ALLCHILDREN) _GDIPlus_GraphicsDispose($hGraphic) _GDIPlus_PenDispose($hPen) _GDIPlus_Shutdown()  
    • bhns
      By bhns
      try it for make flyers old games xml + Gdi, i belive many sources had lost 
      AIT-ADRLIST.au3

    • mdepot
      By mdepot
      I have a situation where I am repeatedly capturing a region of the screen and feeding it into Tesseract OCR.  Since the OCR is a relatively slow operation, I would like to create an in memory cache of the ocr results.  An ideal hash key for this cache would be a checksum of the captured image.  With this I could capture the region, checksum it, and then only if I don't get a cache hit I would write the image out to disk for external OCR.
      Now I know I can do this by saving the captured image out to disk, and then summing the disk file with _Crypt_HashFile().  But that's still slower than I would like, and it shouldn't be necessary.  Ideally, it should be possible to checksum the image data directly in memory so I don't have to go to disk at all.  In order to do that, I need a way to dump a representation of the image into a string  (or some equivalent).  Then I could use the _Crypt_HashData() function against that string to create my cache hash key.
      Googling around I found an article here that shows a way to convert an image object to a byte array using System.Drawing.  This was the closest thing I found to what I'm trying to do.  I don't know if that method could be used from within AutoIT, or if perhaps there may be a better way I don't know about.  If someone could give me a shove in the right direction it would be a big help.  Thanks!
    • UEZ
      By UEZ
      Here some graphical examples written completely in FreeBasic just for fun.  
      3D Starfield Rotating Flight 3D Starfield Scrolling v1 Booster 3D Starfield Scrolling v3 Booster CreateWindowEx (hGUI) Example FB File2Bas Code Generator (AutoIt script) FB GFX Examples Fire Particles FMOD Examples GDI - GDI+ 3D Sinus Wave GDI - GDI+ Animated Pythagoras Tree GDI - GDI+ Particles - Repulsive Force Sim v2.0 GDI - GDI+ Plasma v5 Booster GDI - GDI+ Random Pattern GDI - GDI+ Space Flight GDI - GDI+ Tunnel Flight - WipeOut Style GDI Classic Raytraced Tunnel GDI Elastic Twister Effect GDI Exploding Pixels GDI Infinite Image Zoom Flight GDI Liquid Pixels GDI Particle Repulsion Grid GDI Particles Mouse Attraction GDI Starfield GDI The Nautilus Raymarcher GDI Worm Tunnel Flight GDI+ Impossible Possible GDI+ Kaleidoscope GDI+ Performance Test - Au3 vs FB GDI+ Polar Clock GDI+ Rotating Earth GDI+ Star Wars Scroller GDI+ Streamer GDI+ Swiss Railway Clock Ini Read - Write Mandelbrot Plasma Puristic Clock Rutt_Etra_Izer_Booster Tunnel Flight uFMOD _WinAPI_SetWindowTitleIcon  
      Download: FreeBasic Examples build 2018-07-10.rar
       
      I will add new examples from time to time.
       
      FreeBasic source codes are also included.
       
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