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ActualAkshay

Creating a blank image of specific hex color code?

3 posts in this topic

wanted to know if theres a way to create a blank image of specific color code using au3 only,

for example, wanted to make blank jpg pic of hex code 004488 using au3 only, how can it be done?

post-72083-0-20054700-1361515686_thumb.j

and second question is, how to place a transparent png over another picture and save it as jpg (or any other format)?

post-72083-0-20054700-1361515686_thumb.j + post-72083-0-65293700-1361515690_thumb.p = post-72083-0-17465500-1361515696_thumb.j

3rd, how to convert png to jpg?

:bye:

Regards,

Akshay

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#2 ·  Posted (edited)

Here a litte code example:

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

_GDIPlus_Startup()
Global Const $hGUI = GUICreate("GDI+ Test", 300, 300)
Global Const $iPic = GUICtrlCreatePic("", 100, 100, 100, 100)
Global Const $hPic = GUICtrlGetHandle($iPic)
GUISetBkColor(0x000000, $hGUI)
GUISetState()

#region GDI+

;create an empty bitmap
Global Const $iWidth = 100, $iHeight = 100 ;dimension of the bitmap
Global Const $iStride = 0, $pScan0 = 0, $iPixelFormat = $GDIP_PXF32ARGB ;some bitmap parameters
Global $aResult = DllCall($ghGDIPDll, "uint", "GdipCreateBitmapFromScan0", "int", $iWidth, "int", $iHeight, "int", $iStride, "int", $iPixelFormat, "ptr", $pScan0, "int*", 0)
Global Const $hBitmap = $aResult[6] ;this is the handle of the new empty bitmap
Global Const $hContext = _GDIPlus_ImageGetGraphicsContext($hBitmap) ;create a context to the bitmap handle to do some GDI+ operations
Global Const $iBgColor = 0xFF004488 ;define background color -> ARGB
_GDIPlus_GraphicsClear($hContext, $iBgColor) ;clear empty bitmap with new color

Global Const $hImage = _GDIPlus_ImageLoadFromFile(@ScriptDir & "\Step_2_In.png") ;load a transparent PNG image which should be placed on the bitmap
_GDIPlus_GraphicsDrawImageRect($hContext, $hImage, 0, 0, $iWidth, $iHeight) ;copy the image onto the bitmap. if image dimension <> bitmap dimension than the image will be displayed deformed

;save result as JPG and PNG (conversation is done automatically)
_GDIPlus_ImageSaveToFile($hBitmap, @ScriptDir & "\New_Image.jpg")
_GDIPlus_ImageSaveToFile($hBitmap, @ScriptDir & "\New_Image.png")

;let's display the new created bitmap in the GUI
Global Const $hGraphics = _GDIPlus_GraphicsCreateFromHWND($hPic)
_GDIPlus_GraphicsDrawImageRect($hGraphics, $hBitmap, 0, 0, 100, 100)

#endregion

Do
    Switch GUIGetMsg()
        Case $GUI_EVENT_CLOSE
            _GDIPlus_ImageDispose($hImage) ;release image
            _GDIPlus_BitmapDispose($hBitmap) ;release bitmap
            _GDIPlus_GraphicsDispose($hContext)
            _GDIPlus_GraphicsDispose($hGraphics)
            _GDIPlus_Shutdown()
            GUIDelete()
            Exit
    EndSwitch
Until False

Br,

UEZ

Edited by UEZ
1 person likes this

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#3 ·  Posted (edited)

Oh thanks a lot yay!~ :thumbsup:

Edited by ActualAkshay

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Round($aInfo[0].Width, 0) : $aInfo[0].Width $aSize[1] = $bRound ? Round($aInfo[0].Height, 0) : $aInfo[0].Height _GDIPlus_FontDispose($hFont) _GDIPlus_FontFamilyDispose($hFamily) _GDIPlus_StringFormatDispose($hFormat) _GDIPlus_GraphicsDispose($hGraphic) Return $aSize EndFunc ;==>_GDIPlus_MeasureString Func OnAutoItExit_UDF_WM_CTLCOLORLISTBOX() For $i = 1 To $g__aWM_CTLCOLORLISTBOX[0][0] If Int($g__aWM_CTLCOLORLISTBOX[$i][5]) Then _WinAPI_DeleteObject($g__aWM_CTLCOLORLISTBOX[$i][5]) Next If $__g_iGDIPRef Then _GDIPlus_Shutdown() EndFunc ;==>OnAutoItExit_UDF_WM_CTLCOLORLISTBOX #EndRegion GUICtrlComboSetColors UDF Example() Func Example() ; Create GUI GUICreate("ComboBox Set DROPDOWNLIST BgColor", 640, 300) Local $a_idCombo[7] = [6] $a_idCombo[1] = GUICtrlCreateCombo("", 2, 2, 390, 296, BitOR($CBS_DROPDOWNLIST, $WS_HSCROLL, $WS_VSCROLL)) GUICtrlComboSetColors($a_idCombo[1], 0xEEEEEE, -2, Default) Example_FillTheCombo($a_idCombo[1]) GUICtrlCreateLabel("<<< change BG color, default theme && size ", 400, 4, 396, 296) $a_idCombo[2] = GUICtrlCreateCombo("", 2, 32, 390, 296, BitOR($CBS_DROPDOWNLIST, $WS_HSCROLL, $WS_VSCROLL)) GUICtrlComboSetColors($a_idCombo[2], 0x0000FF, 0xFFFF00, 0) Example_FillTheCombo($a_idCombo[2]) GUICtrlCreateLabel("<<< change colors", 400, 34, 396, 296) $a_idCombo[3] = GUICtrlCreateCombo("", 2, 62, 390, 296, BitOR($CBS_DROPDOWNLIST, $WS_HSCROLL, $WS_VSCROLL)) GUICtrlComboSetColors($a_idCombo[3], 0xdddddd, Default, 100) Example_FillTheCombo($a_idCombo[3]) GUICtrlCreateLabel("<<< change BG color, resize 100px. left", 400, 64, 396, 296) $a_idCombo[4] = GUICtrlCreateCombo("", 2, 92, 390, 296, BitOR($CBS_DROPDOWNLIST, $WS_HSCROLL, $WS_VSCROLL)) GUICtrlComboSetColors($a_idCombo[4], Default, 0x0000FF, -100) Example_FillTheCombo($a_idCombo[4]) GUICtrlCreateLabel("<<< change FG color, resize 100px. right", 400, 94, 396, 296) $a_idCombo[5] = GUICtrlCreateCombo("", 2, 122, 390, 296, BitOR($CBS_DROPDOWNLIST, $WS_HSCROLL, $WS_VSCROLL)) GUICtrlComboSetColors($a_idCombo[5], 0x00FFFF, 0x0000FF, 1) Example_FillTheCombo($a_idCombo[5]) GUICtrlCreateLabel("<<< change colors, resize auto left", 400, 124, 396, 296) $a_idCombo[6] = GUICtrlCreateCombo("", 2, 152, 390, 296, BitOR($CBS_DROPDOWNLIST, $WS_HSCROLL, $WS_VSCROLL)) GUICtrlSetFont($a_idCombo[6], 10, 400, 0, "Courier New") GUICtrlComboSetColors($a_idCombo[6], Default, Default, "2;Courier New;10") Example_FillTheCombo($a_idCombo[6]) GUICtrlCreateLabel("<<< default colors, resize auto right", 400, 154, 396, 296) Local $bttnArrayShow = GUICtrlCreateButton("Show array", 2, 296 - 27, 75, 25) Local $bttnStrMore = GUICtrlCreateButton("Longer str.", 102, 296 - 27, 75, 25) Local $idLorem = GUICtrlCreateLabel("", 195, 296 - 27, 50, 25) Local $bttnStrLess = GUICtrlCreateButton("Shorter str.", 252, 296 - 27, 75, 25) GUISetState(@SW_SHOW) WinActivate("ComboBox Set DROPDOWNLIST BgColor") ;~ Sleep(3500) ; you can reassign colors, size, or restore default ;~ GUICtrlComboSetColors($idCombo5, Default, Default, 300) ; this resets the Control back to default and changes $iExtendLeft ;~ GUICtrlComboSetColors($idCombo5, 0x0000FF, 0x00FFFF, -1) ; this changes the colors and keeps $iExtendLeft as it was ;~ GUICtrlComboSetColors($idCombo5, -1, -1, 300) ; using "-1" will keep the existing colors ;~ ; so in this case, only the $iExtendLeft is declared ;~ Example_FillTheCombo($idCombo5) ;~ Sleep(500) ; after removal, it will not repaint "hList", but then again, you're deleteing the control ;~ GUICtrlComboSetColors($idColors, -3) ;~ GUICtrlDelete($idCombo2) Local $iLorem = 5, $sLorem = "" Example_LoremStr($iLorem, $sLorem, $a_idCombo, $idLorem) ; Loop until the user exits. While 1 Switch GUIGetMsg() Case $GUI_EVENT_CLOSE GUIDelete() Return Case $bttnArrayShow _ArrayDisplay($g__aWM_CTLCOLORLISTBOX, "$g__aWM_CTLCOLORLISTBOX") Case $bttnStrMore $iLorem += 5 Example_LoremStr($iLorem, $sLorem, $a_idCombo, $idLorem) Case $bttnStrLess $iLorem -= 5 Example_LoremStr($iLorem, $sLorem, $a_idCombo, $idLorem) EndSwitch WEnd EndFunc ;==>Example Func Example_FillTheCombo(ByRef $idComboCtrl) GUICtrlSetData($idComboCtrl, "") _GUICtrlComboBox_AddString($idComboCtrl, "something") _GUICtrlComboBox_AddString($idComboCtrl, "something else") _GUICtrlComboBox_AddString($idComboCtrl, "blah, blah, blah, blah") _GUICtrlComboBox_AddString($idComboCtrl, "Lorem will change") Local $a = _GUICtrlComboBox_GetListArray($idComboCtrl) GUICtrlSetData($idComboCtrl, $a[1]) EndFunc ;==>Example_FillTheCombo Func Example_LoremStr(ByRef $iLorem, ByRef $sLorem, ByRef $a_idCombo, ByRef $idLorem) Local Static $s = "Lorem ipsum dolor sit amet, consectetuer adipiscing elit, sed diam nonummy nibh euismod tincidunt ut laoreet dolore magna aliquam erat volutpat." $s &= " Ut wisi enim ad minim veniam, quis nostrud exerci tation ullamcorper suscipit lobortis nisl ut aliquip ex ea commodo consequat." Local Static $i = 5, $a = StringSplit($s, " ") If $iLorem < 1 Then $iLorem = 1 If $iLorem > $a[0] Then $iLorem = $a[0] Local $x, $iLastEntry $sLorem = "" GUICtrlSetData($idLorem, $iLorem & ' words') For $x = 1 To $iLorem $sLorem &= $a[$x] & " " Next For $x = 1 To $a_idCombo[0] $iLastEntry = _GUICtrlComboBox_GetCount($a_idCombo[$x]) - 1 _GUICtrlComboBox_DeleteString($a_idCombo[$x], $iLastEntry) _GUICtrlComboBox_AddString($a_idCombo[$x], $sLorem) Next EndFunc ;==>Example_LoremStr new in v0.0.0.5: auto size the dropdown.
    • DeathChicken
      By DeathChicken
      If possible please add or edit the comments to explain how this works.
       
      ;includes functions from other things
      #include <GDIPlus.au3>
      #include <ScreenCapture.au3>
      ;hotkeys
      HotKeySet("{ESC}", _exit)
      HotKeySet("{F1}", _scan)
      ;global variables
      Global $win_title                    ;name of the window
      Global $area_x                        ;
      Global $area_y                        ;
      Global $area_w                       ;
      Global $area_h                        ;
      Global $cursor                         ;
      Global $rect_file                      ;
      Global $hbmpscreen              ;
      Global $i=  1043                      ;moves the rect
      Global $ii=    378                      ;moves the rect
      Global $x=1044                        ;inner rect offset
      Global $y=501                          ;inner rect offset
      Global $hbmprect                    ;image inside rect
      Global $hscreen                        ;image whole screen
                                         
      _GDIPlus_Startup()                    ;?
      ;display hotkeys on screen
      ToolTip("Press F1 to scan | Press ESC to Exit",0,0)
                                          ;infinite loop to keep prog running
      While 1
          Sleep(100)
      WEnd
      Func _scan()
      ;~ reads your screen area:
      _read()
      ;~ converts screen captured into bmp
      _convert()
      ;~ .  Loads converted bmp to be read
      _loadBMP()
      ;~ compares the bmp of your scanned screen to the actual screen that is being displayed
      _compare()
      EndFunc
                                          ;reads screen
      Func _read()
          $hscreen = _ScreenCapture_CaptureWnd("", WinGetHandle($win_title), $area_x, $area_y, $area_x + $area_w, $area_y + $area_h, $cursor)
      EndFunc
                                          ;converts screen into bmp
      Func _convert()
          _GDIPlus_BitmapCreateFromHBITMAP($hscreen)
      EndFunc
                                          ;loads converted screen
      Func _loadBMP()
      _GDIPlus_BitmapCreateFromFile($rect_file)
      EndFunc
                                          ;compares savedBMP to current screen
      Func _compare()
      ;If(                              below code                                     ) = (                   below code           ) Then
      If _GDIPlus_BitmapGetPixel($hbmpscreen, ($i + $x) - $area_x, ($ii + $y) - $area_y) = _GDIPlus_BitmapGetPixel($hbmprect, $x, $y) Then
      ;display message box titled found with a message of found
      MsgBox("","","found")
      ;if above is not correct then
      EndIf
      EndFunc
                                          ;exit func
      Func _exit()
          Exit
      EndFunc
    • GordonFreeman
      By GordonFreeman
      Hi, i searched some topics but cannot found a simple way to do that:
      #include <GUIConstantsEx.au3> #include <WindowsConstants.au3> $Form1 = GUICreate("Form1", 615, 438, 192, 124) GUISetState(@SW_SHOW) ; I tried this but user reported that it work in 2006, not seems work actually $filemenu = GUICtrlCreateMenu ("&File") $fileitem = GUICtrlCreateMenuitem ("Open",$filemenu) GuiCtrlSetImage($fileitem, "shell32.dll", 4) While 1 $nMsg = GUIGetMsg() Switch $nMsg Case $GUI_EVENT_CLOSE Exit EndSwitch WEnd Also tried:
      #include <GUIConstantsEx.au3> #include <WindowsConstants.au3> $Form1 = GUICreate("Form1", 615, 438, 192, 124) GUISetState(@SW_SHOW) $filemenu = TrayCreateMenu("&File") $fileitem = TrayCreateItem("Open",$filemenu) ;GuiCtrlSetImage($fileitem, "shell32.dll", 4) ;GuiCtrlSetImage(TrayItemGetHandle($fileitem), "shell32.dll", 4) While 1 $nMsg = GUIGetMsg() Switch $nMsg Case $GUI_EVENT_CLOSE Exit EndSwitch WEnd Well.. thanks in advance!
       
      Ok. I found this working example from Yashied. If i cannot find a simple then i will go with it
      #Include <GUIConstantsEx.au3> #Include <GUIMenu.au3> #Include <Constants.au3> #Include <WinAPI.au3> #Include <WindowsConstants.au3> Opt('MustDeclareVars', 1) Global $hMenu, $hForm, $hFile = 1000, $idNew, $idExit $hForm = GUICreate('Menu', 400, 300) $hFile = _GUICtrlMenu_CreateMenu() _GUICtrlMenu_InsertMenuItem ($hFile, 0, ' &Favorites', $idNew) _GUICtrlMenu_InsertMenuItem ($hFile, 1, '', 0) _GUICtrlMenu_InsertMenuItem($hFile, 2, ' E&xit', $idExit) $hMenu = _GUICtrlMenu_CreateMenu() _GUICtrlMenu_InsertMenuItem($hMenu, 0, '&File', 0, $hFile) _GUICtrlMenu_SetMenu($hForm, $hMenu) _GUICtrlMenu_SetItemBmp($hFile, 0, _CreateBitmapFromIcon(_WinAPI_GetSysColor($COLOR_MENU), @SystemDir & '\shell32.dll', 43, 16, 16)) _GUICtrlMenu_SetItemBmp($hFile, 2, _CreateBitmapFromIcon(_WinAPI_GetSysColor($COLOR_MENU), @SystemDir & '\shell32.dll', 27, 16, 16)) GUISetState() Do Until GUIGetMsg() = $GUI_EVENT_CLOSE Func _CreateBitmapFromIcon($iBackground, $sIcon, $iIndex, $iWidth, $iHeight) Local $hDC, $hBackDC, $hBackSv, $hIcon, $hBitmap $hDC = _WinAPI_GetDC(0) $hBackDC = _WinAPI_CreateCompatibleDC($hDC) $hBitmap = _WinAPI_CreateSolidBitmap(0, $iBackground, $iWidth, $iHeight) $hBackSv = _WinAPI_SelectObject($hBackDC, $hBitmap) $hIcon = _WinAPI_PrivateExtractIcon($sIcon, $iIndex, $iWidth, $iHeight) If Not @error Then _WinAPI_DrawIconEx($hBackDC, 0, 0, $hIcon, 0, 0, 0, 0, $DI_NORMAL) _WinAPI_DestroyIcon($hIcon) EndIf _WinAPI_SelectObject($hBackDC, $hBackSv) _WinAPI_ReleaseDC(0, $hDC) _WinAPI_DeleteDC($hBackDC) Return $hBitmap EndFunc ;==>_CreateBitmapFromIcon Func _WinAPI_PrivateExtractIcon($sIcon, $iIndex, $iWidth, $iHeight) Local $hIcon, $tIcon = DllStructCreate('hwnd'), $tID = DllStructCreate('hwnd') Local $Ret = DllCall('user32.dll', 'int', 'PrivateExtractIcons', 'str', $sIcon, 'int', $iIndex, 'int', $iWidth, 'int', $iHeight, 'ptr', DllStructGetPtr($tIcon), 'ptr', DllStructGetPtr($tID), 'int', 1, 'int', 0) If (@error) Or ($Ret[0] = 0) Then Return SetError(1, 0, 0) EndIf $hIcon = DllStructGetData($tIcon, 1) If ($hIcon = Ptr(0)) Or (Not IsPtr($hIcon)) Then Return SetError(1, 0, 0) EndIf Return $hIcon EndFunc ;==>_WinAPI_PrivateExtractIcon Ok, i noticed that is a pain create submenu with _GUICtrlMenu_CreatePopup to do like in Tray, and Tray better located, then i need images/icon with Tray functions, some workaround?? 
    • SimTheNo1
      By SimTheNo1
      I am busy with building a solution for change monitoring of VOIP call program and to be properly automated means among others need for some limited OCR functionality. Current works of others are way too much overkill for this case what makes the need to build it myself. But to do it properly I significantly have to increase my knowledge about digital graphics management.
      For now I already have discovered here and there some mind blowing  Autoit miracles what can be achieved with Windows own possibilities to manipulate that what is output to the monitor. And as far I can judge there are 2 options to process graphics without use of any external libraries like ImageMagick, FreeImage and so on. These are:
       WinAPI  GDIPlus It is for me quite obvious to have various holes in general understanding of graphics and it is once more very clear what advantages gives consistent general study in 1 or another official institutions like University.  Cause there you are introduced into certain domain of knowledge in a way which usually has been perfected over long period of time. So you are not overloaded by stuff which requires a certain amount of information to be initially clear for you. For example, before starting to solve physics you first learn to read, count and so on and then move to subjects like physics.
      Though in my case opportunity to study in such educational system I had only for 8 years, from my 7th to 15th year of age in the country that was falling apart now Ukraine but used to be USSR, was all what it was. After have immigrated to Netherlands possibilities to study further haven't occur. And this therefor causes often various implications when going deep in that or another field of practical knowledge acquiring for any needed physical result, like programming to perform enormous amount of tasks. In this particular case automating VOIP call program.
      Anyway, right now I think the best direction to move is to concentrate on as basic as possible image management and if someone would maybe explain in general what is a pixel will definitely help. Particularly I am very curious about how to do picture manipulations in Autoit. Especially would help a lot to produce eventually following functions:
      createImage($imageFileName, $width, $height, $color) readImagePixel($imageFileName, $x, $y)  writeImagePixel($imageFileName, $x, $y) I do not know exactly how image is handled in computer but preferably above mentioned functions should deal with so far possible origin of graphics creation on computer. But nevertheless I definitely would love to hear any proposition for solution.
      The problem with explaining screenshots:
       VOIPConnect full Window  Part of Window with control to monitor for changes  Exact location of area where actual changes occur and have to be processed  It comes down to a rectangle of approximately 51 pixel wide and 7 pixel high. In fact if I get to learn as far as to be able exactly read, write and compare 2 images consistently across different computers I could narrow down then even further the area to watch as little as a square of 2-5 pixels wide. 
      To finish here is last detail about particularly no need for ultra fast solution at all. This because it is needed only once when it is first run on a new computer and to have to wait few minutes while it is being set instead of just a few seconds make no sence.
      This is it and what I too think to do beside this very particular case is to purify out beautiful generic Autoit functions for core image manipulation by using WinAPI or/and GDIPlus.