Merging the icons using AutoIt. Any ideas.

[Yashied]

There is a need to merge the two icons. I wrote a function that combines two icons into one, and draws them to the specified background. For my purposes the function works fine for all types of icons (1-bit, 4-bit, etc. and any combinations of them), but would like to see a combined icon had a transparent background.

If you have any ideas on this, please reply.

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#include <Constants.au3>
#include <GDIPlus.au3>
#include <WinAPI.au3>
#include <WindowsConstants.au3>

func _DrawCombineBkIcon($iBackground, $sIconBack, $iIndexBack, $sIconFront, $iIndexFront, $iLeft, $iTop, $iWidth, $iHeight, $iStyle = -1, $iExStyle = -1)
    
;    const $DI_NORMAL = 3
    const $STM_SETIMAGE = 0x0172

    local $iIcon, $tIcon, $tID, $hDC, $hBackDC, $hBackSv, $hBitmap, $hImage, $hBackIcon, $hFrontIcon, $aCombineIcon
    local $bError = false

    $tIcon = DllStructCreate('hwnd')
    $tID = DllStructCreate('hwnd')
    DllCall('user32.dll', 'int', 'PrivateExtractIcons', 'str', $sIconFront, 'int', $iIndexFront, 'int', $iWidth, 'int', $iHeight, 'ptr', DllStructGetPtr($tIcon), 'ptr', DllStructGetPtr($tID), 'int', 1, 'int', 0)
    if @error then
        $bError = 1
    endif
    $hFrontIcon = DllStructGetData($tIcon, 1)
    DllCall('user32.dll', 'int', 'PrivateExtractIcons', 'str', $sIconBack, 'int', $iIndexBack, 'int', $iWidth, 'int', $iHeight, 'ptr', DllStructGetPtr($tIcon), 'ptr', DllStructGetPtr($tID), 'int', 1, 'int', 0)
    if @error then
        $bError = 1
    endif
    $hBackIcon = DllStructGetData($tIcon, 1)
    $tIcon = 0
    $tID = 0

    if ($bError) or (not IsPtr($hFrontIcon)) or (not IsPtr($hBackIcon)) then
        return SetError(1, 0, 0)
    endif
    
    $hDC = _WinAPI_GetDC(0)
    $hBackDC = _WinAPI_CreateCompatibleDC($hDC)
    $hBitmap = _WinAPI_CreateSolidBitmap(0, $iBackground, $iWidth, $iHeight)
    $hBackSv = _WinAPI_SelectObject($hBackDC, $hBitmap)
    _WinAPI_DrawIconEx($hBackDC, 0, 0, $hBackIcon, 0, 0, 0, 0, $DI_NORMAL)
    _WinAPI_DrawIconEx($hBackDC, 0, 0, $hFrontIcon, 0, 0, 0, 0, $DI_NORMAL)
    
    _GDIPlus_Startup()
    
    $hImage = _GDIPlus_BitmapCreateFromHBITMAP($hBitmap)
    $aCombineIcon = DllCall($ghGDIPDll, 'int', 'GdipCreateHICONFromBitmap', 'hWnd', $hImage, 'int*', 0)
    _GDIPlus_ImageDispose($hImage)
    
    $iIcon = GUICtrlCreateIcon('', 0, $iLeft, $iTop, $iWidth, $iHeight, $iStyle, $iExStyle)
    if $iIcon > 0 then
        GUICtrlSendMsg($iIcon, $STM_SETIMAGE, $IMAGE_ICON, _WinAPI_CopyIcon($aCombineIcon[2]))
    endif
    
    _GDIPlus_Shutdown()
    
    _WinAPI_SelectObject($hBackDC, $hBackSv)
    _WinAPI_DeleteDC($hBackDC)
    _WinAPI_ReleaseDC(0, $hDC)
    _WinAPI_DeleteObject($aCombineIcon[2])
    _WinAPI_DeleteObject($hBitmap)
    _WinAPI_DeleteObject($hFrontIcon)
    _WinAPI_DeleteObject($hBackIcon)

    return SetError(0, 0, $iIcon)
endfunc; _DrawCombineBkIcon

DrawCombineBkIcon.au3

Edited May 12, 2009 by Yashied

[Yashied]

If you are interested, here is a simple example for _DrawCombineBkIcon function.

#include <GUIConstantsEx.au3>
#include <DrawCombineBkIcon.au3>

local $Form

$Form = GUICreate('Test', 128, 128)
GUISetState()
_DrawCombineBkIcon(_GUIGetBkColor($Form), 'shell32.dll', 0, 'shell32.dll', 28, 48, 48, 32, 32)

do
    Sleep(10)
until GUIGetMsg() = $GUI_EVENT_CLOSE

func _GUIGetBkColor($hWnd)
    
    local $hDC, $BkClr
    
    $hDC = _WinAPI_GetDC($hWnd)
    $BkClr = _WinAPI_SetBkColor($hDC, 0)
    _WinAPI_ReleaseDC($hWnd, $hDC)
    return $BkClr
endfunc; _GUIGetBkColor

Edited February 10, 2009 by Yashied

[ResNullius]

Very nice Yashied!

Looks like you're contributing some great scripts.

Welcome to the community.