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Thread: A Class Module to store Images from a folder for later reuse in Workbook Excel VBA

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  1. #12
    @Dave, i tried the above code but it didnt work on my 64 bit Excel, 64 bit Windows 10 system. :-(

    I finally found a 64 bit code on this same site :

    http://www.vbaexpress.com/forum/show...-picture/page2


    which works sometime and sometimes gives an Error on "CloseClipboard" :

    "1004. Application Defined or Object Defined Error."
    - I am not sure but i think it may be happening because of Clipboard not closing quickly. So added a Do...DoEvents Loop Until H=0. It works most of the time, but still gives same error after loading a couple of Pictures from folder. How to tackle this issue?

    - Once the Dictionary gets populated, i tried running a different Procedure to check if Dictionary was still populated. It maintained its contents until an error occurred. In which case, i have to run the "picollection" procedure again.

    Question: How do i insert the picture from the Dictionary or Collection to my Thisworkbook Sheet?

    Here's the full code i am using. Maybe you will be able to quickly identify the root cause and suggest an appropriate solution :


    Option Explicit
    
    
        Public PicCollect As Object 'Collection
        
        '***************************************************************************'*
        '* AUTHOR & DATE:   STEPHEN BULLEN, Office Automation Ltd
        '*                  15 November 1998
        
        
        '*
        '* DESCRIPTION:     Creates a standard Picture object from whatever is on the clipboard.
        '*                  This object can then be assigned to (for example) and Image control
        '*                  on a userform.  The PastePicture function takes an optional argument of
        '*                  the picture type - xlBitmap or xlPicture.
        '*
        '*                  The code requires a reference to the "OLE Automation" type library
        '*
        '*                  The code in this module has been derived from a number of sources
        '*                  discovered on MSDN.
        '*
        '*                  To use it:
        '*                      Set Image1.Picture = PastePicture(xlPicture)
        '*                  to paste a picture of whatever is on the clipboard into a standard image control.
        '*
        '* PROCEDURES:
        '*   PastePicture   The entry point for the routine
        '*   CreatePicture  Private function to convert a bitmap or metafile handle to an OLE reference
        '*   fnOLEError     Get the error text for an OLE error code
        '***************************************************************************
        'Option Private Module
        Option Compare Text
        
        
        ''' User-Defined Types for API Calls
        
        
        'Declare a UDT to store a GUID for the IPicture OLE Interface
        Private Type guid
            Data1 As Long
            Data2 As Integer
            Data3 As Integer
            Data4(0 To 7) As Byte
        End Type
        
    
    
    '''Windows API Function Declarations
    #If VBA7 Then
        
        
        Private Type uPicDesc
            Size As Long
            Type As Long
            hPic As LongPtr
            hPal As LongPtr
        End Type
        
        
        'Does the clipboard contain a bitmap/metafile?
        Private Declare PtrSafe Function IsClipboardFormatAvailable Lib "user32" (ByVal wFormat As Integer) As Long
        
        
        'Open the clipboard to read
        Private Declare PtrSafe Function OpenClipboard Lib "user32" (ByVal hwnd As LongPtr) As Long
        
        
        'Get a pointer to the bitmap/metafile
        Private Declare PtrSafe Function GetClipboardData Lib "user32" (ByVal wFormat As Integer) As LongPtr
        
        
        'Close the clipboard
        Private Declare PtrSafe Function CloseClipboard Lib "user32" () As Long
        
        
        'Convert the handle into an OLE IPicture interface.
        Private Declare PtrSafe Function OleCreatePictureIndirect Lib "oleaut32.dll" (PicDesc As uPicDesc, RefIID As guid, ByVal fPictureOwnsHandle As LongPtr, IPic As IPicture) As Long
        
        'Create our own copy of the metafile, so it doesn't get wiped out by subsequent clipboard updates.
        Declare PtrSafe Function CopyEnhMetaFile Lib "gdi32" Alias "CopyEnhMetaFileA" (ByVal hemfSrc As LongPtr, ByVal lpszFile As String) As LongPtr
        
        'Create our own copy of the bitmap, so it doesn't get wiped out by subsequent clipboard updates.
        Declare PtrSafe Function CopyImage Lib "user32" (ByVal Handle As LongPtr, ByVal un1 As Long, ByVal n1 As Long, ByVal n2 As Long, ByVal un2 As Long) As LongPtr
    
    
    #Else
        
        'Declare a UDT to store the bitmap information
        Private Type uPicDesc
            Size As Long
            Type As Long
            hPic As Long
            hPal As Long
        End Type
        
        
        'Does the clipboard contain a bitmap/metafile?
        Private Declare Function IsClipboardFormatAvailable Lib "user32" (ByVal wFormat As Integer) As Long
        
        'Open the clipboard to read
        Private Declare Function OpenClipboard Lib "user32" (ByVal hWnd As Long) As Long
        
        'Get a pointer to the bitmap/metafile
        Private Declare Function GetClipboardData Lib "user32" (ByVal wFormat As Integer) As Long
        
        'Close the clipboard
        Private Declare Function CloseClipboard Lib "user32" () As Long
        
        'Convert the handle into an OLE IPicture interface.
        Private Declare Function OleCreatePictureIndirect Lib "olepro32.dll" (PicDesc As uPicDesc, RefIID As GUID, ByVal fPictureOwnsHandle As Long, IPic As IPicture) As Long
        
        'Create our own copy of the metafile, so it doesn't get wiped out by subsequent clipboard updates.
        Declare Function CopyEnhMetaFile Lib "gdi32" Alias "CopyEnhMetaFileA" (ByVal hemfSrc As Long, ByVal lpszFile As String) As Long
        
        'Create our own copy of the bitmap, so it doesn't get wiped out by subsequent clipboard updates.
        Declare Function CopyImage Lib "user32" (ByVal Handle As Long, ByVal un1 As Long, ByVal n1 As Long, ByVal n2 As Long, ByVal un2 As Long) As Long
    
    
    #End If
    
    
    'The API format types we're interested in
    Const CF_BITMAP = 2
    Const CF_PALETTE = 9
    Const CF_ENHMETAFILE = 14
    Const IMAGE_BITMAP = 0
    Const LR_COPYRETURNORG = &H4
    ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
    ''' Subroutine: PastePicture
    '''
    ''' Purpose:    Get a Picture object showing whatever's on the clipboard.
    '''
    ''' Arguments:  lXlPicType - The type of picture to create.  Can be one of:
    '''                          xlPicture to create a metafile (default)
    '''                          xlBitmap to create a bitmap
    '''
    ''' Date        Developer           Action
    ''' ------------------------------------------------------c--------------------
    ''' 30 Oct 98   Stephen Bullen      Created
    ''' 15 Nov 98   Stephen Bullen      Updated to create our own copies of the clipboard images
    
    
    Function PastePicture(Optional lXlPicType As Long = xlPicture) As IPicture
    
    
       #If VBA7 Or Win64 Then
            PastePictureVBA7 (lXlPicType)
       #Else
            PastePictureWin32 (lXlPicType)
       #End If
    
    
    End Function
    
    
    Function PastePictureVBA7(Optional lXlPicType As Long = xlPicture) As IPicture
        'Some pointers
        Dim H As Long, hPicAvail As Long, hPtr As LongPtr, hPal As LongPtr, lPicType As Long, hCopy As LongPtr
        
        'Convert the type of picture requested from the xl constant to the API constant
        lPicType = IIf(lXlPicType = xlBitmap, CF_BITMAP, CF_ENHMETAFILE)
        
        'Check if the clipboard contains the required format
        hPicAvail = IsClipboardFormatAvailable(lPicType)
        
        If hPicAvail <> 0 Then
            'Get access to the clipboard
            H = OpenClipboard(0&)
        
            If H > 0 Then
                'Get a handle to the image data
                hPtr = GetClipboardData(lPicType)
        
                'Create our own copy of the image on the clipboard, in the appropriate format.
                If lPicType = CF_BITMAP Then
                    hCopy = CopyImage(hPtr, IMAGE_BITMAP, 0, 0, LR_COPYRETURNORG)
                Else
                    hCopy = CopyEnhMetaFile(hPtr, vbNullString)
                End If
        
                'Release the clipboard to other programs.*******HERE I TRIED DOWN CODE BY ADDING DOEVENTS.*******
                Do
                    H = CloseClipboard
                    EmptyClipboard
                    DoEvents
                Loop Until H = 0
        
                'If we got a handle to the image, convert it into a Picture object and return it
                If hPtr <> 0^ Then Set PastePictureVBA7 = CreatePictureVBA7(hCopy, 0, lPicType)
            End If
        End If
    End Function
    
    
    
    
    Function PastePictureWin32(Optional lXlPicType As Long = xlPicture) As IPicture
    
    
    
    
        'Some pointers
        Dim H As Long, hPicAvail As Long, hPtr As Long, hPal As Long, lPicType As Long, hCopy As Long
        
        'Convert the type of picture requested from the xl constant to the API constant
        lPicType = IIf(lXlPicType = xlBitmap, CF_BITMAP, CF_ENHMETAFILE)
        
        'Check if the clipboard contains the required format
        hPicAvail = IsClipboardFormatAvailable(lPicType)
        
        If hPicAvail <> 0 Then
            'Get access to the clipboard
            H = OpenClipboard(0&)
        
            If H > 0 Then
                'Get a handle to the image data
                hPtr = GetClipboardData(lPicType)
        
                'Create our own copy of the image on the clipboard, in the appropriate format.
                If lPicType = CF_BITMAP Then
                    hCopy = CopyImage(hPtr, IMAGE_BITMAP, 0, 0, LR_COPYRETURNORG)
                Else
                    hCopy = CopyEnhMetaFile(hPtr, vbNullString)
                End If
        
                'Release the clipboard to other programs. *******HERE I TRIED DOWN CODE BY ADDING DOEVENTS.*******
                Do
                    H = CloseClipboard
                    EmptyClipboard
                    DoEvents
                Loop Until H = 0
                
                'If we got a handle to the image, convert it into a Picture object and return it
                If hPtr <> 0 Then Set PastePictureWin32 = CreatePicture(hCopy, 0, lPicType)
            End If
        End If
    
    
    End Function
    ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
    ''' Subroutine: CreatePicture
    '''
    ''' Purpose:    Converts a image (and palette) handle into a Picture object.
    '''
    '''             Requires a reference to the "OLE Automation" type library
    '''
    ''' Arguments:  None
    '''
    ''' Date        Developer           Action
    ''' --------------------------------------------------------------------------
    ''' 30 Oct 98  Stephen Bullen      Created
    '''
    Private Function CreatePictureVBA7(ByVal hPic As LongPtr, ByVal hPal As LongPtr, ByVal lPicType) As IPicture
        
        
        ' IPicture requires a reference to "OLE Automation"
        Dim r As Long, uPicInfo As uPicDesc, IID_IDispatch As guid, IPic As IPicture
        
        
        'OLE Picture types
        Const PICTYPE_BITMAP = 1
        Const PICTYPE_ENHMETAFILE = 4
        
        
        ' Create the Interface GUID (for the IPicture interface)
        With IID_IDispatch
            .Data1 = &H7BF80980
            .Data2 = &HBF32
            .Data3 = &H101A
            .Data4(0) = &H8B
            .Data4(1) = &HBB
            .Data4(2) = &H0
            .Data4(3) = &HAA
            .Data4(4) = &H0
            .Data4(5) = &H30
            .Data4(6) = &HC
            .Data4(7) = &HAB
        End With
        
        
        ' Fill uPicInfo with necessary parts.
        With uPicInfo
            .Size = Len(uPicInfo)                                                   ' Length of structure.
            .Type = IIf(lPicType = CF_BITMAP, PICTYPE_BITMAP, PICTYPE_ENHMETAFILE)  ' Type of Picture
            .hPic = hPic                                                            ' Handle to image.
            .hPal = IIf(lPicType = CF_BITMAP, hPal, 0)                              ' Handle to palette (if bitmap).
        End With
             
            ' Create the Picture object.
        r = OleCreatePictureIndirect(uPicInfo, IID_IDispatch, 1, IPic)
        
        
        ' If an error occured, show the description
        If r <> 0 Then Debug.Print "Create Picture: " & fnOLEError(r)
        
        
        ' Return the new Picture object.
        Set CreatePictureVBA7 = IPic
       
    End Function
    
    
    
    
    Private Function CreatePicture(ByVal hPic As Long, ByVal hPal As Long, ByVal lPicType) As IPicture
        
        
        ' IPicture requires a reference to "OLE Automation"
        Dim r As Long, uPicInfo As uPicDesc, IID_IDispatch As guid, IPic As IPicture    
        
        'OLE Picture types
        Const PICTYPE_BITMAP = 1
        Const PICTYPE_ENHMETAFILE = 4    
        
        ' Create the Interface GUID (for the IPicture interface)
        With IID_IDispatch
            .Data1 = &H7BF80980
            .Data2 = &HBF32
            .Data3 = &H101A
            .Data4(0) = &H8B
            .Data4(1) = &HBB
            .Data4(2) = &H0
            .Data4(3) = &HAA
            .Data4(4) = &H0
            .Data4(5) = &H30
            .Data4(6) = &HC
            .Data4(7) = &HAB
        End With
            
        ' Fill uPicInfo with necessary parts.
        With uPicInfo
            .Size = Len(uPicInfo)                                                   ' Length of structure.
            .Type = IIf(lPicType = CF_BITMAP, PICTYPE_BITMAP, PICTYPE_ENHMETAFILE)  ' Type of Picture
            .hPic = hPic                                                            ' Handle to image.
            .hPal = IIf(lPicType = CF_BITMAP, hPal, 0)                              ' Handle to palette (if bitmap).
        End With    
        
        ' Create the Picture object.
        r = OleCreatePictureIndirect(uPicInfo, IID_IDispatch, True, IPic)    
        
        ' If an error occured, show the description
        If r <> 0 Then Debug.Print "Create Picture: " & fnOLEError(r)
        
        ' Return the new Picture object.
        Set CreatePicture = IPic
    End Function
    
    
    
    
    ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
    ''' Subroutine: fnOLEError
    '''
    ''' Purpose:    Gets the message text for standard OLE errors
    '''
    ''' Arguments:  None
    '''
    ''' Date        Developer           Action
    ''' --------------------------------------------------------------------------
    ''' 30 Oct 98   Stephen Bullen      Created
    Private Function fnOLEError(lErrNum As Long) As String
        
        
        'OLECreatePictureIndirect return values
        Const E_ABORT = &H80004004
        Const E_ACCESSDENIED = &H80070005
        Const E_FAIL = &H80004005
        Const E_HANDLE = &H80070006
        Const E_INVALIDARG = &H80070057
        Const E_NOINTERFACE = &H80004002
        Const E_NOTIMPL = &H80004001
        Const E_OUTOFMEMORY = &H8007000E
        Const E_POINTER = &H80004003
        Const E_UNEXPECTED = &H8000FFFF
        Const S_OK = &H0
        
        
        Select Case lErrNum
        Case E_ABORT
            fnOLEError = " Aborted"
        Case E_ACCESSDENIED
            fnOLEError = " Access Denied"
        Case E_FAIL
            fnOLEError = " General Failure"
        Case E_HANDLE
            fnOLEError = " Bad/Missing Handle"
        Case E_INVALIDARG
            fnOLEError = " Invalid Argument"
        Case E_NOINTERFACE
            fnOLEError = " No Interface"
        Case E_NOTIMPL
            fnOLEError = " Not Implemented"
        Case E_OUTOFMEMORY
            fnOLEError = " Out of Memory"
        Case E_POINTER
            fnOLEError = " Invalid Pointer"
        Case E_UNEXPECTED
            fnOLEError = " Unknown Error"
        Case S_OK
            fnOLEError = " Success!"
        End Select
    End Function
    
    
    Public Function PicCollection(ShtName As String, Flder As String, Filext As String) As Boolean
    
    
        Dim FSO As Object, FolDir As Object, FileNm As Object, Shp As Shape, Ws As Worksheet
        
        'Call PicCollection("sheet1", "C:\Pftrial", "gif")
        
        'Loads pics into collection
        On Error GoTo ErFix
    '    Set PicCollect = New Collection
        Set PicCollect = CreateObject("Scripting.Dictionary")
        Set FSO = CreateObject("scripting.filesystemobject")
        Set FolDir = FSO.GetFolder(Flder)
        Set Ws = ThisWorkbook.Worksheets(ShtName)
        With Ws
            For Each Shp In .Shapes
                If Shp.Type = msoPicture Then
                    Shp.Delete
                End If
            Next Shp
        End With
        
        Application.ScreenUpdating = False
        'loop files
        For Each FileNm In FolDir.Files
            If FileNm.Name Like "*." & Filext Then
                Set Shp = Ws.Shapes.AddPicture(Flder & "\" & FileNm.Name, False, True, 50, 50, 1, 1)
                
                'Use picture'Shp height and width.
                Shp.ScaleHeight 1, msoCTrue
                Shp.ScaleWidth 1, msoCTrue
                Shp.CopyPicture 'xlScreen, xlBitmap
                
                If Not PicCollect.Exists(FileNm.Name) Then
                    PicCollect.Add key:=FileNm.Name, Item:=PastePicture
                    Shp.Delete
                End If
            End If
        Next FileNm
        
        Application.ScreenUpdating = True
        Set FSO = Nothing
        Set FolDir = Nothing
        PicCollection = True
        Exit Function
    
    
    ErFix:
        MsgBox Err.Number & "_" & Err.Description
        On Error GoTo 0
        Application.ScreenUpdating = True
        Set FSO = Nothing
        Set FolDir = Nothing
        PicCollection = False
        
    End Function
    
    
    
    'To operate...'adjust sheetname, foldername/path and file extension to suit
    Sub Doit()
        Dim strFolder$
        strFolder = "C:\MyPics\"
        If Not PicCollection("PicSht", strFolder, "png") Then MsgBox "Picture collection NOT created!"
    End Sub
    
    
    Sub TestPicsDictionary()
    
        Dim wk As Worksheet, key, i&
        Set wk = ThisWorkbook.Sheets("PicSht")
        
        i = 0
        With wk
            For Each key In PicCollect.Keys
                MsgBox key
                .Shapes.AddPicture PicCollect(key), msoFalse, msoTrue, 50 + i, 50, PicCollect(key).Width, PicCollect(key).Height    ' GET ERROR HERE ALSO AND PicCollect loses images.
                i = i + 50
            Next key
        End With
    End Sub
    Also, when it works,a single IPicture does not show any properties populated!

    PastePictureVBA7_Error.jpg


    P.S: It seems "fnOLEError" is never called!
    Last edited by sifar786; 02-19-2020 at 08:09 AM.

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