Sign in to follow this  
Followers 0
Zoldex

GUICtrlCreatePic strange behaviour

3 posts in this topic

#1 ·  Posted (edited)

I'm trying to displaya picture on a gui but it doesn't work if I make some GDI+ operations just before creating the gui:

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>
#Include <ScreenCapture.au3>
#Include <Misc.au3>
#include <StaticConstants.au3>

Local $GUIimg_title,$GUIwidth,$GUIheight,$GUILeft,$GUITop

Local $filename = FileOpenDialog("Select image", @ScriptDir, "Image (*.jpg;*.bmp)", 3)

_GDIPlus_Startup()

Local $imagefromfile = _GDIPlus_ImageLoadFromFile($filename) ;Create an image object based on a file
Local $GUIwidth = _GDIPlus_ImageGetWidth($imagefromfile)
Local $GUIheight = _GDIPlus_ImageGetHeight($imagefromfile)


; Display image
$hBitmap_GUI = GUICreate("", $GUIwidth, $GUIheight)
$hPic = GUICtrlCreatePic($filename, 0, 0)

GUISetState()
_GDIPlus_Shutdown()


While 1

Switch GUIGetMsg()
Case $GUI_EVENT_CLOSE;, $hCancel_Button
Exit
;~
EndSwitch

WEnd

Instead it works if I remove GDI+ ... Can't understand why!

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>
#Include <ScreenCapture.au3>
#Include <Misc.au3>
#include <StaticConstants.au3>
Local $GUIimg_title,$GUIwidth,$GUIheight,$GUILeft,$GUITop

Local $filename = FileOpenDialog("Select image", @ScriptDir, "Image (*.jpg;*.bmp)", 3)

;~ _GDIPlus_Startup()

;~ Local $imagefromfile = _GDIPlus_ImageLoadFromFile($filename) ;Create an image object based on a file
;~ Local $GUIwidth = _GDIPlus_ImageGetWidth($imagefromfile)
;~ Local $GUIheight = _GDIPlus_ImageGetHeight($imagefromfile)
;~ _GDIPlus_Shutdown()


; Display image
;$hBitmap_GUI = GUICreate("", $GUIwidth, $GUIheight)
$hBitmap_GUI = GUICreate("", 800, 800); <---- had to use fixed size...
$hPic = GUICtrlCreatePic($filename, 1, 1)

GUISetState()


While 1

Switch GUIGetMsg()
Case $GUI_EVENT_CLOSE;, $hCancel_Button
Exit
;~
EndSwitch

WEnd

:huh2:

Any hints?

Edited by Zoldex

Share this post


Link to post
Share on other sites



Not sure why the GDI+ stuff is causing a problem, but if all you need it for is to get the dimensions of the file, you could do it this way.

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>
#include <ScreenCapture.au3>
#include <Misc.au3>
#include <StaticConstants.au3>
#include <Array.au3>
Local $GUIimg_title, $GUIwidth, $GUIheight, $GUILeft, $GUITop

Local $filename = FileOpenDialog("Select image", @ScriptDir, "Image (*.jpg;*.bmp)", 3)

;~ _GDIPlus_Startup()

;~ Local $imagefromfile = _GDIPlus_ImageLoadFromFile($filename) ;Create an image object based on a file
;~ Local $GUIwidth = _GDIPlus_ImageGetWidth($imagefromfile)
;~ Local $GUIheight = _GDIPlus_ImageGetHeight($imagefromfile)

;~ _GDIPlus_Shutdown()

; Display image
$aDimensions = StringRegExp(_FileGetProperty($filename, "height"), "(d+)", 2)
$GUIheight = $aDimensions[0]
$aDimensions = StringRegExp(_FileGetProperty($filename, "width"), "(d+)", 2)
$GUIwidth = $aDimensions[0]
$hBitmap_GUI = GUICreate("", $GUIwidth, $GUIheight)
$hPic = GUICtrlCreatePic($filename, 0, 0, 0, 0)

GUISetState()

While 1

    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE;, $hCancel_Button
            Exit

    EndSwitch

WEnd
;===============================================================================
; Function Name.....: _FileGetProperty
; Description.......: Returns a property or all properties for a file.
; Version...........: 1.0.2
; Change Date.......: 05-16-2012
; AutoIt Version....: 3.2.12.1+
; Parameter(s)......: $S_PATH - String containing the file path to return the property from.
;                     $S_PROPERTY - [optional] String containing the name of the property to return. (default = "")
; Requirements(s)...: None
; Return Value(s)...: Success: Returns a string containing the property value.
;                       If $S_PROPERTY is empty, an two-dimensional array is returned:
;                         $av_array[0][0] = Number of properties.
;                         $av_array[1][0] = 1st property name.
;                         $as_array[1][1] = 1st property value.
;                         $av_array[n][0] = nth property name.
;                         $as_array[n][1] = nth property value.
;                     Failure: Returns 0 and sets @error to:
;                       1 = The folder $S_PATH does not exist.
;                       2 = The property $S_PROPERTY does not exist or the array could not be created.
;                       3 = Unable to create the "Shell.Application" object $objShell.
; Author(s).........: - Simucal <Simucal@gmail.com>
;                     - Modified by: Sean Hart <autoit@hartmail.ca>
;                     - Modified by: teh_hahn <sPiTsHiT@gmx.de>
;                     - Modified by: BrewManNH
; URL...............: http://www.autoitscript.com/forum/topic/34732-udf-getfileproperty/page__view__findpost__p__557571
; Note(s)...........: Modified the script that teh_hahn posted at the above link to include the properties that
;                     Vista and Win 7 include that Windows XP doesn't. Also removed the ReDims for the $av_ret array and
;                     replaced it with a single ReDim after it has found all the properties, this should speed things up.
;===============================================================================
Func _FileGetProperty($S_PATH, Const $S_PROPERTY = "")
    $S_PATH = StringRegExpReplace($S_PATH, '["'']', "") ; strip the quotes, if any from the incoming string
    If Not FileExists($S_PATH) Then Return SetError(1, 0, 0)
    Local Const $objShell = ObjCreate("Shell.Application")
    If @error Then Return SetError(3, 0, 0)
    Local $iPropertyCount = 300 ; arbitrary number used, Windows 7 only returns 289 properties, Windows XP only returns 38 (future proofing)
    Local Const $S_FILE = StringTrimLeft($S_PATH, StringInStr($S_PATH, "", 0, -1))
    Local Const $S_DIR = StringTrimRight($S_PATH, StringLen($S_FILE) + 1)
    Local Const $objFolder = $objShell.NameSpace($S_DIR)
    Local Const $objFolderItem = $objFolder.Parsename($S_FILE)
    If $S_PROPERTY Then
        For $I = -1 To $iPropertyCount + 1
            If $objFolder.GetDetailsOf($objFolder.Items, $I) = $S_PROPERTY Then
                Return $objFolder.GetDetailsOf($objFolderItem, $I)
            EndIf
        Next
        Return SetError(2, 0, 0)
    EndIf
    Local $av_ret[$iPropertyCount][2] = [[1]]
    For $I = 1 To $iPropertyCount + 1
        If $objFolder.GetDetailsOf($objFolder.Items, $I) Then
            $av_ret[$I][0] = $objFolder.GetDetailsOf($objFolder.Items, $I - 1)
            $av_ret[$I][1] = $objFolder.GetDetailsOf($objFolderItem, $I - 1)
            $av_ret[0][0] += 1
        EndIf
    Next
    ReDim $av_ret[$av_ret[0][0] + 1][2]
    If Not $av_ret[1][0] Then Return SetError(2, 0, 0)
    Return $av_ret
EndFunc   ;==>_FileGetProperty

I used the RegEx because the results on my computer returns ### pixels, where the ### is the dimension size and this will strip off anything not a number.

This works on Windows 7, XP does not have this information available, but does have the Dimensions property you could work with.


If I posted any code, assume that code was written using the latest release version unless stated otherwise. Also, if it doesn't work on XP I can't help with that because I don't have access to XP, and I'm not going to.
Give a programmer the correct code and he can do his work for a day. Teach a programmer to debug and he can do his work for a lifetime - by Chirag Gude
How to ask questions the smart way!

I hereby grant any person the right to use any code I post, that I am the original author of, on the autoitscript.com forums, unless I've specifically stated otherwise in the code or the thread post. If you do use my code all I ask, as a courtesy, is to make note of where you got it from.

Back up and restore Windows user files _Array.au3 - Modified array functions that include support for 2D arrays.  -  ColorChooser - An add-on for SciTE that pops up a color dialog so you can select and paste a color code into a script.  -  Customizable Splashscreen GUI w/Progress Bar - Create a custom "splash screen" GUI with a progress bar and custom label.  -  _FileGetProperty - Retrieve the properties of a file  -  SciTE Toolbar - A toolbar demo for use with the SciTE editor  -  GUIRegisterMsg demo - Demo script to show how to use the Windows messages to interact with controls and your GUI.  -   Latin Square password generator

Share this post


Link to post
Share on other sites

It's because you do not dispose the image and is still in use. Try this:

#include <GuiConstantsEx.au3>
#include <WindowsConstants.au3>
#Include <ScreenCapture.au3>
#Include <Misc.au3>
#include <StaticConstants.au3>

Local $GUIimg_title,$GUIwidth,$GUIheight,$GUILeft,$GUITop

Local $filename = FileOpenDialog("Select image", @ScriptDir, "Image (*.jpg;*.bmp)", 3)

_GDIPlus_Startup()

Local $imagefromfile = _GDIPlus_ImageLoadFromFile($filename) ;Create an image object based on a file
Local $GUIwidth = _GDIPlus_ImageGetWidth($imagefromfile)
Local $GUIheight = _GDIPlus_ImageGetHeight($imagefromfile)
_GDIPlus_ImageDispose($imagefromfile)
_GDIPlus_Shutdown()

; Display image
$hBitmap_GUI = GUICreate("", $GUIwidth, $GUIheight)
$hPic = GUICtrlCreatePic($filename, 0, 0, $GUIwidth, $GUIheight)

GUISetState()



While 1

Switch GUIGetMsg()
Case $GUI_EVENT_CLOSE;, $hCancel_Button
Exit
;~
EndSwitch

WEnd
1 person likes this

When the words fail... music speaks

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!


Register a new account

Sign in

Already have an account? Sign in here.


Sign In Now
Sign in to follow this  
Followers 0

  • Similar Content

    • kartune
      By kartune
      Hello, i'm trying to rename a variable to another variable name (not the value attached to the variable).  This would save me TONS of coding.
      Here is an example:
       
      <autoit>
      Local $clear1="$SATJ"  ;sets the $clear1 variable to become $SATJ
      GUICtrlSetState($clear1 & "3", $GUI_UNCHECKED)  ;i want this to come out to be $SATJ3, it should look something like - GUICtrlSetState($SATJ3, $GUI_UNCHECKED)
      </autoit>
      Is this possible?  I've been searching all the forums and help files for hours.  My javascript friend referenced me to the solution on JS, which lead me to searching through the "assign" help on autoit, but not much info on it.
      I've already tried
      <autoit>
      Assign($clear1, $SATJ)
      </autoit>
       
      any help is greatly appreciated!!! 
    • Blaxxun
      By Blaxxun
      #include <GDIPlus.au3> Text2PNG(@DesktopDir & "\MyPNG.png", 0x00FFFFFF) ; Transparent but bold ugly text ;Text2PNG(@DesktopDir & "\MyPNG.png", 0xFFFFFFFF) ; Nice Text but not transparent Func Text2PNG($sFile, $iColor) _GDIPlus_Startup() Local $hImage = _GDIPlus_BitmapCreateFromScan0(50, 25) Local $hGraphics = _GDIPlus_ImageGetGraphicsContext($hImage) _GDIPlus_GraphicsClear($hGraphics, $iColor) _GDIPlus_GraphicsDrawString($hGraphics, "Hello", 0, 0, "Arial", 12, 0) _GDIPlus_ImageSaveToFile($hImage, $sFile) _GDIPlus_GraphicsDispose($hGraphics) _GDIPlus_BitmapDispose($hImage) _GDIPlus_Shutdown() EndFunc ;==>Text2PNG  
      Hello ladys and gentlemen,
      I have this piece of code and it does what it's supposed to do.
      I want to use it to create an image sequence with frame/image information for compositing overlay.
      However, when i use a transparent background the text starts to look kinda bold or fat.
      I dont know what causes this ugly effect.
      Is there a way to avoid this effect somehow?
      Thanks!
       
       
    • UEZ
      By UEZ
      I saw this code here: http://zoomquilt.org/ and here: http://arkadia.xyz and thought how this can be implemented in AutoIt. Here the results.
       
      The Zoomquilt:
      ;coded by UEZ build 2018-01-10, idea and images taken from http://zoomquilt.org/ ;thanks to spudw2k for the MouseZoom function #pragma compile(Icon, "c:\Program Files (x86)\AutoIt3\Icons\au3.ico") #AutoIt3Wrapper_Run_Au3Stripper=y #Au3Stripper_Parameters=/so /pe /rm #AutoIt3Wrapper_Run_After=del /f /q "%scriptdir%\%scriptfile%_stripped.au3" #include <GDIPlus.au3> #include <GuiConstantsEx.au3> #include <WindowsConstants.au3> _GDIPlus_Startup() Global $hGUI, $iFPS = 0, $iShowFPS = 0, $bExit, $iW, $iH Global Const $sTitle = "GDI Image Zoom v2.1.2 coded by UEZ" AutoItSetOption("GUIOnEventMode", 1) Downloader() GDIPlus_ZoomImage() AutoItSetOption("GUIOnEventMode", 0) _GDIPlus_Shutdown() Func GDIPlus_ZoomImage($bMultimonitor = False) $bExit = False Local $i, $aImages[46], $hImage, $hObj ConsoleWrite("Loading images from local disk..." & @CRLF) Local $fTimer = TimerInit() For $i = 0 To UBound($aImages) - 1 $hImage = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\Images\TheZoomquilt" & StringFormat("%02i.jpg", $i)) $aImages[$i] = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hImage) _GDIPlus_ImageDispose($hImage) Next ConsoleWrite(UBound($aImages) & " images loaded in " & TimerDiff($fTimer) & " ms" & @CRLF) Local $tDim = DllStructCreate($tagBITMAP) DllCall("GDI32.dll", 'int', 'GetObject', 'int', $aImages[0], 'int', DllStructGetSize($tDim), 'ptr', DllStructGetPtr($tDim)) $iW = $tDim.bmWidth $iH = $tDim.bmHeight Local $hFullScreen = WinGetHandle("[TITLE:Program Manager;CLASS:Progman]"), $aFullScreen[4], $iW_Dt, $iH_Dt $aFullScreen = WinGetPos($hFullScreen) If $bMultimonitor Then $iW_Dt = $aFullScreen[2] $iH_Dt = $aFullScreen[3] Else $iW_Dt = @DesktopWidth $iH_Dt = @DesktopHeight $aFullScreen[0] = "" $aFullScreen[1] = "" EndIf $hGUI = GUICreate($sTitle, $iW_Dt, $iH_Dt, $aFullScreen[0], $aFullScreen[1], $WS_POPUP, $WS_EX_TOPMOST) GUISetState(@SW_SHOW, $hGUI) GUISetCursor(16, 1) ;create canvas elements Local Const $hDC = _WinAPI_GetDC($hGUI) Local Const $hHBitmap = _WinAPI_CreateCompatibleBitmap($hDC, $iW_Dt, $iH_Dt) Local Const $hDC_backbuffer = _WinAPI_CreateCompatibleDC($hDC) Local Const $DC_obj = _WinAPI_SelectObject($hDC_backbuffer, $hHBitmap) Local Const $hMemDC = _WinAPI_CreateCompatibleDC($hDC) _WinAPI_SetStretchBltMode($hDC_backbuffer, $STRETCH_DELETESCANS) Local Const $hCanvas = _GDIPlus_GraphicsCreateFromHDC($hDC_backbuffer) _GDIPlus_GraphicsSetSmoothingMode($hCanvas, $GDIP_SMOOTHINGMODE_HIGHQUALITY) _GDIPlus_GraphicsSetPixelOffsetMode($hCanvas, $GDIP_PIXELOFFSETMODE_HIGHQUALITY) Local Const $hBrush_Clr = _GDIPlus_BrushCreateSolid(0xFF000000), _ $hBrush_FPS = _GDIPlus_BrushCreateSolid(0xFFFFFFFF), _ $hFormat_FPS = _GDIPlus_StringFormatCreate(), _ $hFamily_FPS = _GDIPlus_FontFamilyCreate("Arial"), _ $hFont_FPS = _GDIPlus_FontCreate($hFamily_FPS, 8), _ $tLayout_FPS = _GDIPlus_RectFCreate(0, 0, 130, 16) $iFPS = 0 GUISetOnEvent($GUI_EVENT_CLOSE, "_Exit_About") AdlibRegister("CalcFPS", 1000) Local $a[3], $b = 1, $c, $x, $e, $y, $w, $h, $w2 = $iW_Dt / 2, $h2 = $iH_Dt / 2, $q, $r If $iW_Dt > 1.5 * $iH_Dt Then $q = $iW_Dt $r = 0.75 * $iW_Dt Else $q = 1.5 * $iH_Dt $r = 0.75 * $iH_Dt EndIf Do For $e = 0 To 2 $a[$e] = $aImages[Mod(Floor($b) + $e, UBound($aImages))] Next $c = 2^(Mod($b, 1)) For $e = 0 To 2 $x = $w2 - $q / 2 * $c $y = $h2 - $r / 2 * $c $w = $q * $c $h = $r * $c $hObj = _WinAPI_SelectObject($hMemDC, $a[$e]) _WinAPI_StretchBlt($hDC_backbuffer, $x, $y, $w, $h, $hMemDC, 0, 0, $iW, $iH, $SRCCOPY) $c *= 0.5 Next $b += MouseZoom() IF $b < 0 Then $b = UBound($aImages) - $b _GDIPlus_GraphicsDrawStringEx($hCanvas, "FPS: " & $iShowFPS & " @ " & $iW_Dt & "x" & $iH_Dt & " px", $hFont_FPS, $tLayout_FPS, $hFormat_FPS, $hBrush_FPS) _WinAPI_BitBlt($hDC, 0, 0, $iW_Dt, $iH_Dt, $hDC_backbuffer, 0, 0, $SRCCOPY) $iFPS += 1 If $bExit Then ExitLoop Until Not Sleep(0) AdlibUnRegister("CalcFPS") ;release resources _GDIPlus_FontDispose($hFont_FPS) _GDIPlus_FontFamilyDispose($hFamily_FPS) _GDIPlus_StringFormatDispose($hFormat_FPS) _GDIPlus_BrushDispose($hBrush_Clr) _GDIPlus_BrushDispose($hBrush_FPS) _GDIPlus_GraphicsDispose($hCanvas) _WinAPI_SelectObject($hMemDC, $hObj) _WinAPI_DeleteDC($hMemDC) _WinAPI_SelectObject($hDC_backbuffer, $DC_obj) _WinAPI_DeleteDC($hDC_backbuffer) _WinAPI_DeleteObject($hHBitmap) _WinAPI_ReleaseDC($hGUI, $hDC) For $i = 0 To UBound($aImages) - 1 _WinAPI_DeleteObject($aImages[$i]) Next GUIDelete($hGUI) EndFunc ;==>GDIPlus_ZoomImage Func MouseZoom() ;https://www.arduino.cc/reference/en/language/functions/math/map/ Local $iInput = MouseGetPos(1), $iInMin = 0, $iInMax = @DesktopHeight, $iOutMin = 1, $iOutMax = -1, $iStep = 0.025 Return (($iInput - $iInMin) * ($iOutMax - $iOutMin) / ($iInMax - $iInMin) + $iOutMin) * $iStep EndFunc ;MouseZoom() Func _Exit_About() $bExit = True EndFunc ;==>_Exit_About Func CalcFPS() ;display FPS $iShowFPS = $iFPS $iFPS = 0 EndFunc ;==>CalcFPS Func Downloader() Local $i, $A = StringSplit("FUjD9hf gbHhxTR 8YyzJdR xP3aNkR 2Qi4fQr E6pW5Ky zmtWIBF Af7LtYp TuXy30d 3nKGLr2 hNoWscB mSBvv3K f4wJ70e mIt9XmM M4TkAyh P4L4qhd hNM6bTv VoT8JXM jqcGH0B DYVoN8n bOPQkOI NeaTfJ1 18ppMNr FZ3d8Jv HsoX2RP mjv4kzI 6rpJbef pySKauq WjNQYRV Ffooo8y Xei5XfD T5A415r LiV0VNB nGcwiO4 b1Gdjjy GE828iy eSQ7SLe 1mPyGgL GNtwJIr KxBlU7E aKXhms5 9Quu2wu Y07quDf r0yC5Qa 273fCkD 2wMyCUw FUjD9hf", " ", 2) Local $sURL For $i = 0 To UBound($A) - 1 If Not FileExists(@ScriptDir & "\Images\TheZoomquilt" & StringFormat("%02i.jpg", $i)) Then If Not FileExists(@ScriptDir & "\Images") Then DirCreate(@ScriptDir & "\Images") $sURL = "http://imgur.com/" & $A[Mod(20 + $i, 46)] & ".jpg" ConsoleWrite("Downloading " & $sURL & ": " & InetGet($sURL, @ScriptDir & "\Images\TheZoomquilt" & StringFormat("%02i.jpg", $i), 8) & " bytes" & @CRLF) ToolTip("Downloading images...Please wait! -> " & $i + 1 & " / " & UBound($A), MouseGetPos(0), MouseGetPos(1)) EndIf Next ToolTip("") EndFunc ;==>Downloader  
       
      Arkadia:
      ;coded by UEZ build 2018-01-10, idea and images taken from http://arkadia.xyz ;thanks to spudw2k for the MouseZoom function #pragma compile(Icon, "c:\Program Files (x86)\AutoIt3\Icons\au3.ico") #AutoIt3Wrapper_Run_Au3Stripper=y #Au3Stripper_Parameters=/so /pe /rm #AutoIt3Wrapper_Run_After=del /f /q "%scriptdir%\%scriptfile%_stripped.au3" #include <GDIPlus.au3> #include <GuiConstantsEx.au3> #include <WindowsConstants.au3> _GDIPlus_Startup() Global $hGUI, $iFPS = 0, $iShowFPS = 0, $bExit, $iW, $iH Global Const $sTitle = "GDI Image Zoom v2.2.1 coded by UEZ" AutoItSetOption("GUIOnEventMode", 1) Downloader() GDIPlus_ZoomImage() AutoItSetOption("GUIOnEventMode", 0) _GDIPlus_Shutdown() Func GDIPlus_ZoomImage($bMultimonitor = False) $bExit = False Local $i, $aImages[49], $hImage, $hObj ConsoleWrite("Loading images from local disk..." & @CRLF) Local $fTimer = TimerInit() For $i = 0 To UBound($aImages) - 1 $hImage = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\Images\Arkadia" & $i & ".jpg") $aImages[$i] = _GDIPlus_BitmapCreateHBITMAPFromBitmap($hImage) _GDIPlus_ImageDispose($hImage) Next ConsoleWrite(UBound($aImages) & " images loaded in " & TimerDiff($fTimer) & " ms" & @CRLF) Local $tDim = DllStructCreate($tagBITMAP) DllCall("GDI32.dll", "int", "GetObject", "int", $aImages[0], "int", DllStructGetSize($tDim), "ptr", DllStructGetPtr($tDim)) $iW = $tDim.bmWidth $iH = $tDim.bmHeight Local $hFullScreen = WinGetHandle("[TITLE:Program Manager;CLASS:Progman]"), $aFullScreen[4], $iW_Dt, $iH_Dt $aFullScreen = WinGetPos($hFullScreen) If $bMultimonitor Then $iW_Dt = $aFullScreen[2] $iH_Dt = $aFullScreen[3] Else $iW_Dt = @DesktopWidth $iH_Dt = @DesktopHeight $aFullScreen[0] = "" $aFullScreen[1] = "" EndIf $hGUI = GUICreate($sTitle, $iW_Dt, $iH_Dt, $aFullScreen[0], $aFullScreen[1], $WS_POPUP, $WS_EX_TOPMOST) GUISetState(@SW_SHOW, $hGUI) GUISetCursor(16, 1) ;create canvas elements Local Const $hDC = _WinAPI_GetDC($hGUI) Local Const $hHBitmap = _WinAPI_CreateCompatibleBitmap($hDC, $iW_Dt, $iH_Dt) Local Const $hDC_backbuffer = _WinAPI_CreateCompatibleDC($hDC) Local Const $DC_obj = _WinAPI_SelectObject($hDC_backbuffer, $hHBitmap) Local Const $hMemDC = _WinAPI_CreateCompatibleDC($hDC) _WinAPI_SetStretchBltMode($hDC_backbuffer, $STRETCH_DELETESCANS) Local Const $hCanvas = _GDIPlus_GraphicsCreateFromHDC($hDC_backbuffer) _GDIPlus_GraphicsSetSmoothingMode($hCanvas, $GDIP_SMOOTHINGMODE_HIGHQUALITY) _GDIPlus_GraphicsSetPixelOffsetMode($hCanvas, $GDIP_PIXELOFFSETMODE_HIGHQUALITY) Local Const $hBrush_Clr = _GDIPlus_BrushCreateSolid(0xFF000000), _ $hBrush_FPS = _GDIPlus_BrushCreateSolid(0xFFFFFFFF), _ $hFormat_FPS = _GDIPlus_StringFormatCreate(), _ $hFamily_FPS = _GDIPlus_FontFamilyCreate("Arial"), _ $hFont_FPS = _GDIPlus_FontCreate($hFamily_FPS, 8), _ $tLayout_FPS = _GDIPlus_RectFCreate(0, 0, 130, 16) $iFPS = 0 GUISetOnEvent($GUI_EVENT_CLOSE, "_Exit_About") AdlibRegister("CalcFPS", 1000) Local $a[3], $b = 1, $c, $x, $e, $y, $w, $h, $w2 = $iW_Dt / 2, $h2 = $iH_Dt / 2, $q, $r If $iW_Dt > 1.5 * $iH_Dt Then $q = $iW_Dt $r = 0.75 * $iW_Dt Else $q = 1.5 * $iH_Dt $r = 0.75 * $iH_Dt EndIf Do For $e = 0 To 2 $a[$e] = $aImages[Mod(Floor($b) + $e, UBound($aImages))] Next $c = 2^(Mod($b, 1)) For $e = 0 To 2 $x = $w2 - $q / 2 * $c $y = $h2 - $r / 2 * $c $w = $q * $c $h = $r * $c $hObj = _WinAPI_SelectObject($hMemDC, $a[$e]) _WinAPI_StretchBlt($hDC_backbuffer, $x, $y, $w, $h, $hMemDC, 0, 0, $iW, $iH, $SRCCOPY) $c *= 0.5 Next $b += MouseZoom() IF $b < 0 Then $b = UBound($aImages) - $b _GDIPlus_GraphicsDrawStringEx($hCanvas, "FPS: " & $iShowFPS & " @ " & $iW_Dt & "x" & $iH_Dt & " px", $hFont_FPS, $tLayout_FPS, $hFormat_FPS, $hBrush_FPS) _WinAPI_BitBlt($hDC, 0, 0, $iW_Dt, $iH_Dt, $hDC_backbuffer, 0, 0, $SRCCOPY) $iFPS += 1 If $bExit Then ExitLoop Until Not Sleep(0) AdlibUnRegister("CalcFPS") ;release resources _GDIPlus_FontDispose($hFont_FPS) _GDIPlus_FontFamilyDispose($hFamily_FPS) _GDIPlus_StringFormatDispose($hFormat_FPS) _GDIPlus_BrushDispose($hBrush_Clr) _GDIPlus_BrushDispose($hBrush_FPS) _GDIPlus_GraphicsDispose($hCanvas) _WinAPI_SelectObject($hMemDC, $hObj) _WinAPI_DeleteDC($hMemDC) _WinAPI_SelectObject($hDC_backbuffer, $DC_obj) _WinAPI_DeleteDC($hDC_backbuffer) _WinAPI_DeleteObject($hHBitmap) _WinAPI_ReleaseDC($hGUI, $hDC) For $i = 0 To UBound($aImages) - 1 _WinAPI_DeleteObject($aImages[$i]) Next GUIDelete($hGUI) EndFunc ;==>GDIPlus_ZoomImage Func MouseZoom() ;https://www.arduino.cc/reference/en/language/functions/math/map/ Local $iInput = MouseGetPos(1), $iInMin = 0, $iInMax = @DesktopHeight, $iOutMin = 1, $iOutMax = -1, $iStep = 0.025 Return (($iInput - $iInMin) * ($iOutMax - $iOutMin) / ($iInMax - $iInMin) + $iOutMin) * $iStep EndFunc ;MouseZoom() Func _Exit_About() $bExit = True EndFunc ;==>_Exit_About Func CalcFPS() ;display FPS $iShowFPS = $iFPS $iFPS = 0 EndFunc ;==>CalcFPS Func Downloader() Local $sURL, $i For $i = 0 To 48 If Not FileExists(@ScriptDir & "\Images\Arkadia" & $i & ".jpg") Then If Not FileExists(@ScriptDir & "\Images") Then DirCreate(@ScriptDir & "\Images") $sURL = "http://arkadia.xyz/images/arkadia" & $i & ".jpg" ConsoleWrite("Downloading " & $sURL & ": " & InetGet($sURL, @ScriptDir & "\Images\Arkadia" & $i & ".jpg", 8) & " bytes" & @CRLF) ToolTip("Downloading images...Please wait! -> " & $i + 1 & " / " & $i, MouseGetPos(0), MouseGetPos(1)) EndIf Next ToolTip("") EndFunc ;==>Downloader  
      The missing images will be download and saved to script dir in folder images. Due to internal integer format of the GDI functions the screen is little bit wobbling.
       
      Happy watching. 
    • tcurran
      By tcurran
      Here are two functions to provide pixel-accurate height and width dimensions for a given string.
      The more commonly-used _GDIPlus_GraphicsMeasureString built-in UDF is problematic because it returns the width padded by roughly one en-space (for reasons related to the various ways Windows produces anti-aliased fonts).
      These are AutoIt translations of Pierre Arnaud's C# functions, described in his CodeProject article "Bypass Graphics.MeasureString limitations"
      The first is an all-purpose version that takes a window handle, string, font family, font size (in points), style, and (optionally) width of the layout column (in pixels) as parameters.
      The second, more efficient version is intended for applications where GDI+ fonts are already in use, and takes handles to the existing graphics context, string, font, layout and format as parameters.
      Both functions return a two-row array with the exact width [0] and height [1] of the string (in pixels).
      EDIT: (Note that some of the same anti-aliasing measurement issues still apply. I did my best to work around them, but the output of the function may still be off by a pixel or two. Buyer beware.)
      #include <GDIPlus.au3> #include <GUIConstantsEx.au3> ; #FUNCTION# ==================================================================================================================== ; Name ..........: _StringInPixels ; Description ...: Returns a pixel-accurate height and width for a given string using a given font, style and size. ; Syntax ........: _StringInPixels($hGUI, $sString, $sFontFamily, $fSize, $iStyle[, $iColWidth = 0]) ; Parameters ....: $hGUI - Handle to the window. ; $sString - The string to be measured. ; $sFontFamily - Full name of the font to use. ; $fSize - Font size in points (half-point increments). ; $iStyle - Combination of 0-normal, 1-bold, 2-italic, 4-underline, 8-strikethrough ; $iColWidth - [optional] If word-wrap is desired, column width in pixels ; Return values .: 2-row array. [0] is width in pixels; [1] is height in pixels. ; Author ........: Tim Curran; adapted from Pierre Arnaud's C# function ; Modified ......: ; Remarks .......: This version is longer and less efficient but works for all purposes. ; Related .......: <https://www.codeproject.com/Articles/2118/Bypass-Graphics-MeasureString-limitations> ; Link ..........: ; Example .......: Example-StringInPixels.au3 ; =============================================================================================================================== #include <GDIPlus.au3> #include <GUIConstantsEx.au3> Func _StringInPixels($hGUI, $sString, $sFontFamily, $fSize, $iStyle, $iColWidth = 0) _GDIPlus_Startup() Local $hGraphic = _GDIPlus_GraphicsCreateFromHWND($hGUI) ;Create a graphics object from a window handle Local $aRanges[2][2] = [[1]] $aRanges[1][0] = 0 ;Measure first char (0-based) $aRanges[1][1] = StringLen($sString) ;Region = String length Local $hFormat = _GDIPlus_StringFormatCreate() Local $hFamily = _GDIPlus_FontFamilyCreate($sFontFamily) Local $hFont = _GDIPlus_FontCreate($hFamily, $fSize, $iStyle) _GDIPlus_GraphicsSetTextRenderingHint($hGraphic, $GDIP_TEXTRENDERINGHINT_ANTIALIASGRIDFIT) _GDIPlus_StringFormatSetMeasurableCharacterRanges($hFormat, $aRanges) ;Set ranges Local $aWinClient = WinGetClientSize($hGUI) If $iColWidth = 0 Then $iColWidth = $aWinClient[0] Local $tLayout = _GDIPlus_RectFCreate(10, 10, $iColWidth, $aWinClient[1]) Local $aRegions = _GDIPlus_GraphicsMeasureCharacterRanges($hGraphic, $sString, $hFont, $tLayout, $hFormat) ;get array of regions Local $aBounds = _GDIPlus_RegionGetBounds($aRegions[1], $hGraphic) Local $aWidthHeight[2] = [$aBounds[2], $aBounds[3]] ; Clean up resources _GDIPlus_FontDispose($hFont) _GDIPlus_RegionDispose($aRegions[1]) _GDIPlus_FontFamilyDispose($hFamily) _GDIPlus_StringFormatDispose($hFormat) _GDIPlus_GraphicsDispose($hGraphic) _GDIPlus_Shutdown() Return $aWidthHeight EndFunc ;==>_StringInPixels ; #FUNCTION# ==================================================================================================================== ; Name ..........: _StringInPixels_gdip ; Description ...: Returns a pixel-accurate height and width for a given string using a GDI+ font, layout and format ; Syntax ........: _StringInPixels_gdip($hGraphic, $sString, $hFont, $tLayout, $hFormat) ; Parameters ....: $hGraphic - Handle to a GDI+ graphics object. ; $sString - The string to be measured. ; $hFont - Handle to a GDI+ font. ; $tLayout - A $tagGDIPRECTF structure that bounds the string. ; $hFormat - Handle to a GDI+ string format. ; Return values .: 2-row array. [0] is width in pixels; [1] is height in pixels. ; Author ........: Tim Curran; adapted from Pierre Arnaud's C# function ; Modified ......: ; Remarks .......: This much more efficient version is for use with GDI+ fonts ; Related .......: ; Link ..........: <https://www.codeproject.com/Articles/2118/Bypass-Graphics-MeasureString-limitations> ; Example .......: Example-StringInPixels.au3 ; =============================================================================================================================== #include <GDIPlus.au3> #include <GUIConstantsEx.au3> Func _StringInPixels_gdip($hGraphic, $sString, $hFont, $tLayout, $hFormat) Local $aRanges[2][2] = [[1]] $aRanges[1][0] = 0 ;Measure first char (0-based) $aRanges[1][1] = StringLen($sString) ;Region = String length _GDIPlus_GraphicsSetTextRenderingHint($hGraphic, $GDIP_TEXTRENDERINGHINT_CLEARTYPEGRIDFIT) _GDIPlus_StringFormatSetMeasurableCharacterRanges($hFormat, $aRanges) ;Set ranges Local $aRegions = _GDIPlus_GraphicsMeasureCharacterRanges($hGraphic, $sString, $hFont, $tLayout, $hFormat) ;get array of regions Local $aBounds = _GDIPlus_RegionGetBounds($aRegions[1], $hGraphic) Local $aWidthHeight[2] = [$aBounds[2], $aBounds[3]] _GDIPlus_RegionDispose($aRegions[1]) Return $aWidthHeight EndFunc ;==>_StringInPixels_gdip  
      _StringInPixels.au3
      Example-StringInPixels.au3
    • c.haslam
      By c.haslam
      In the code that follows, it appears that DllStructCreate() is not allocating memory in
      $tag = 'byte val['&$iLength&']' . . Static Local $tvalue = DllStructCreate($tag) Running the code below, the problem does not show, but it does show in a much longer script: there _GDIPlus_ImageSaveToFile only writes about 30K bytes when it should write about 1MB, which it does when the code is
      $tag = 'char val['&$iLength&']' . . Static Local $tvalue = DllStructCreate($tag) It should write about 1 MB.
      I suggest caution in running the code below. On my PC, it caused a second instance of SciTE to appear at the top left of the Desktop, showing only the title bar, with a width of only approximately 200 pixels! Then rebooting the PC showed this at login. Further, double-clicking on the SciTE shortcut on the Desktop showed SciTE in the same way! (After running Regedit, and searching for SciTE, the shortcut behaves normally.)
      I would appreciate help in determining whether or not there is a bug in DLLStructCreate, preferably a way which does not clobber Windows. Of course, It is possible that there is a bug in my code.
      I have made $tvalue Static in the hope that this might make the code run properly. Doing this did not help.
      My code is based on code written by Authenticity and ChrisL.
      #include <GDIPlus.au3> #include <Array.au3> Opt('MustDeclareVars',1) ; Property Item structure Global Const $tagGDIPPROPERTYITEM = _ "uint id;" & _ ; ID of this property "ulong length;" & _ ; Length of the property value, in bytes "word type;" & _ ; Type of the value, as one of TAG_TYPE_XXX constants "ptr pvalue;" ; pointer to property value ; Image property types constants ; Ref: https://www.media.mit.edu/pia/Research/deepview/exif.html Global Const $GDIP_PROPERTYTAGTYPEUBYTE = 1 Global Const $GDIP_PROPERTYTAGTYPEASCII = 2 Global Const $GDIP_PROPERTYTAGTYPEUSHORT = 3 Global Const $GDIP_PROPERTYTAGTYPEULONG = 4 Global Const $GDIP_PROPERTYTAGTYPEURATIONAL = 5 Global Const $GDIP_PROPERTYTAGTYPESBYTE = 6 Global Const $GDIP_PROPERTYTAGTYPEUNDEFINED = 7 Global Const $GDIP_PROPERTYTAGTYPESSHORT = 8 Global Const $GDIP_PROPERTYTAGTYPESLONG = 9 Global Const $GDIP_PROPERTYTAGTYPESRATIONAL = 10 Global Const $GDIP_PROPERTYTAGTYPESFLOAT = 11 Global Const $GDIP_PROPERTYTAGTYPEDFLOAT = 12 main() Func main() _GDIPlus_Startup() Local $hImage = _GDIPlus_ImageLoadFromFile('H:\temp\AP test data\DSC00824 - Copy.jpg') Local $ar = _GDIPlus_ImageGetAllPropertyItemsEx($hImage) Local $propsAr[UBound($ar,1)-1][5],$vec,$j=-1 For $i = 1 To $ar[0][0] If $ar[$i][3]<>0 Then ; pValue -- for Sony! $j += 1 $propsAr[$j][0] = $ar[$i][0] ; id $propsAr[$j][1] = $ar[$i][1] ; length $propsAr[$j][2] =$ar[$i][2]; type $vec = _GDIPlus_ImageGetPropertyItemValue($ar[$i][1],$ar[$i][2],$ar[$i][3]) $propsAr[$j][3] = $vec[0] ; val1 Switch $ar[$i][2] Case 5,10 ; $GDIP_PROPERTYTAGTYPEURATIONAL,$GDIP_PROPERTYTAGTYPESRATIONAL $propsAr[$j][4] = $vec[1] Case Else $propsAr[$j][4] = '' EndSwitch EndIf Next ReDim $propsAr[$j+1][5] For $i = 0 To UBound($propsAr,1)-1 Switch $propsAr[$i][2] ; type Case 5,10 ; $GDIP_PROPERTYTAGTYPEURATIONAL,$GDIP_PROPERTYTAGTYPESRATIONAL _GDIPlus_ImageSetPropertyItemEx($hImage,$propsAr[$i][0],$propsAr[$i][1], _ $propsAr[$i][2],$propsAr[$i][3],$propsAr[$i][4]) Case Else _GDIPlus_ImageSetPropertyItemEx($hImage,$propsAr[$i][0],$propsAr[$i][1], _ $propsAr[$i][2],$propsAr[$i][3]) EndSwitch Next _GDIPlus_ImageSaveToFile($hImage,'H:\b\1.jpg') _GDIPlus_ImageDispose($hImage) _GDIPlus_Shutdown() EndFunc Func _GDIPlus_ImageGetAllPropertyItemsEx($hImage) Local $iI, $iCount, $tBuffer, $pBuffer, $iBuffer, $tPropertyItem, $aSize, $aPropertyItems[1][1], $aResult $aSize = _GDIPlus_ImageGetPropertySize($hImage) If @error Then Return SetError(@error, @extended, -1) $iBuffer = $aSize[0] $tBuffer = DllStructCreate("byte[" & $iBuffer & "]") $pBuffer = DllStructGetPtr($tBuffer) $iCount = $aSize[1] $aResult = DllCall($__g_hGDIPDll, "uint", "GdipGetAllPropertyItems", "hwnd", $hImage, "uint", $iBuffer, "uint", $iCount, "ptr", $pBuffer) If @error Then Return SetError(@error, @extended, -1) If $aResult[0] Then Return SetError(10, $aResult[0], False) ReDim $aPropertyItems[$iCount + 1][4] $aPropertyItems[0][0] = $iCount For $iI = 1 To $iCount $tPropertyItem = DllStructCreate($tagGDIPPROPERTYITEM, $pBuffer) $aPropertyItems[$iI][0] = DllStructGetData($tPropertyItem, "id") $aPropertyItems[$iI][1] = DllStructGetData($tPropertyItem, "length") $aPropertyItems[$iI][2] = DllStructGetData($tPropertyItem, "type") $aPropertyItems[$iI][3] = DllStructGetData($tPropertyItem, "pvalue") $pBuffer += DllStructGetSize($tPropertyItem) Next Return $aPropertyItems EndFunc Func _GDIPlus_ImageGetPropertyItemValue($iLength, $iType, $pValue) Static Local $tvalue Switch $iType Case 1,6 ; $GDIP_PROPERTYTAGTYPEUBYTE,$GDIP_PROPERTYTAGTYPESBYTE $tvalue = DllStructCreate('byte val',$pValue) Case 2 ; $GDIP_PROPERTYTAGTYPEASCII $tvalue = DllStructCreate('char val['&$iLength&']',$pValue) Case 3 ; $GDIP_PROPERTYTAGTYPEUSHORT $tvalue = DllStructCreate('ushort val',$pValue) Case 4 ; $GDIP_PROPERTYTAGTYPEULONG $tvalue = DllStructCreate('ulong val',$pValue) Case 5 ; $GDIP_PROPERTYTAGTYPEURATIONAL $tvalue = DllStructCreate('ulong val1;ulong val2',$pValue) Case 7 ; $GDIP_PROPERTYTAGTYPEUNDEFINED ; undefined, per specification, but may be a long but is sometimes a string $tvalue = DllStructCreate('byte val['&$ilength&']',$pValue) ; see _GDIPlus_ImageSetPropertyItemEx ;~ $tvalue = DllStructCreate('char val['&$ilength&']',$pValue) Case 8 ; $GDIP_PROPERTYTAGTYPESSHORT $tvalue = DllStructCreate('short val',$pValue) Case 9 ; $GDIP_PROPERTYTAGTYPEULONG $tvalue = DllStructCreate('ulong val',$pValue) Case 10 ; $GDIP_PROPERTYTAGTYPESRATIONAL $tvalue = DllStructCreate('ulong val1;ulong val2',$pValue) Case 11 ; $GDIP_PROPERTYTAGTYPESFLOAT $tvalue = DllStructCreate('float val',$pValue) Case 12 ; $GDIP_PROPERTYTAGTYPEDFLOAT $tvalue = DllStructCreate('double val',$pValue) EndSwitch If @error Then Return SetError(@error,0,-1) Switch $iType Case 5,10 ; $GDIP_PROPERTYTAGTYPEURATIONAL,$GDIP_PROPERTYTAGTYPESRATIONAL Local $aRet[2] $aRet[0] = DllStructGetData($tvalue,'val1') $aRet[1] = DllStructGetData($tvalue,'val2') Case Else Local $aRet[1] $aRet[0] = DllStructGetData($tvalue,'val') EndSwitch Return $aRet EndFunc Func _GDIPlus_ImageGetPropertySize($hImage) Local $aSize[2], $aResult $aResult = DllCall($__g_hGDIPDll, "uint", "GdipGetPropertySize", "hwnd", $hImage, "uint*", 0, "uint*", 0) If @error Then Return SetError(@error, @extended, -1) $aSize[0] = $aResult[2] $aSize[1] = $aResult[3] Return $aSize EndFunc ;==>_GDIPlus_ImageGetPropertySize Func _GDIPlus_ImageSetPropertyItemEx($hImage,$id,$iLength,$iType,$value1,$value2=-1) Local $tProp = DllStructCreate($tagGDIPPROPERTYITEM) DllStructSetData($tProp,'id',$id) DllStructSetData($tProp,'type',$itype) DllStructSetData($tProp,'length',$ilength) Local $tag Switch $iType Case $GDIP_PROPERTYTAGTYPEUBYTE,$GDIP_PROPERTYTAGTYPESBYTE $tag = 'byte val' Case $GDIP_PROPERTYTAGTYPEASCII $tag = 'char val['&$iLength&']' Case $GDIP_PROPERTYTAGTYPEUSHORT $tag = 'ushort val' Case $GDIP_PROPERTYTAGTYPEULONG $tag = 'ulong val' Case $GDIP_PROPERTYTAGTYPEURATIONAL $tag = 'ulong val1;ulong val2' Case $GDIP_PROPERTYTAGTYPEUNDEFINED ; undefined, per specification, but may be a long but is sometimes a string $tag = 'byte val['&$iLength&']' ; causes saving to jpeg to write junk ;~ $tag = 'char val['&$iLength&']' Case $GDIP_PROPERTYTAGTYPESSHORT $tag = 'short val' Case $GDIP_PROPERTYTAGTYPEULONG $tag = 'ulong val' Case $GDIP_PROPERTYTAGTYPESRATIONAL $tag = 'long val1;long val2' Case $GDIP_PROPERTYTAGTYPESFLOAT $tag = 'float val' Case $GDIP_PROPERTYTAGTYPEDFLOAT $tag = 'double val' EndSwitch Static Local $tvalue = DllStructCreate($tag) Switch $iType Case $GDIP_PROPERTYTAGTYPEURATIONAL,$GDIP_PROPERTYTAGTYPESRATIONAL DllStructSetData($tvalue,'val1',$value1) DllStructSetData($tvalue,'val2',$value2) Case Else DllStructSetData($tvalue,1,$value1) EndSwitch DllStructSetData($tProp,'pvalue',DllStructGetPtr($tvalue)) Local $aResult = DllCall($__g_hGDIPDll, "int", "GdipSetPropertyItem", "hwnd", $hImage, "ptr", _ DllStructGetPtr($tProp)) If @error Then Return SetError(@error, @extended, -1) If $aResult[0] Then Return SetError(10, $aResult[0], -1) Return $aResult[0] = 0 EndFunc I have seen $iLength be as much as 37 KB for $GDIP_PROPERTYTAGTYPEUNDEFINED.
      Is there is a bug, how can this be demonstrated to the developers in a few lines of code (without clobbering Windows)?