Господа. Возникла передо мной задача сохранять в файл рисунки, созданные в Word. Прямой возможности для этого нет. Существует два обходных варианта:
Сохранять в html, а затем из папки забирать картинку.
Копировать картинку в буфер и затем сохранять в файл.
Второй вариант мне показался более красивым и я нашел возможность это делать.
Все было бы хорошо, но при копировании выделения как картинки
Selection.CopyAsPicture этот метод не работает. Насколько я понял, это связано с тем, что в буфер при этом копируется не
CF_BITMAP, а содержимое другого типа. К сожалению, я не владею WinAPI на должном уровне для решения такой задачи. Можно ли научить эту функцию понимать хотя бы то, что Word копирует в буфер как картинку? Пример документа, который использует эту функцию находится в
приложении
Код сохранения картинки в буфере в файл
'### Paste into a standard module - call Clip2File ###
'##################################################
' Checks the clipboard for a bitmap
' If found, creates a standard Picture object from the
' clipboard contetnts and saves it to a file
' The code requires a reference to the "OLE Automation" type library
' The code in this module has been derived primarily from _
' the PatsePicture sample on Stephen Bullen's Excel Page _
' - http://www.bmsltd.ie/Excel/Default.htm
'Windows API Function Declarations
Private Declare Function IsClipboardFormatAvailable Lib "user32" (ByVal wFormat As Integer) As Long
Private Declare Function OpenClipboard Lib "user32" (ByVal hwnd As Long) As Long
Private Declare Function GetClipboardData Lib "user32" (ByVal wFormat As Integer) As Long
Private Declare Function CloseClipboard Lib "user32" () As Long
Private Declare Function OleCreatePictureIndirect Lib "olepro32.dll" (PicDesc As uPicDesc, RefIID As GUID, ByVal fPictureOwnsHandle _
As Long, IPic As IPicture) As Long
Private 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
'The API format types we need
Const CF_BITMAP = 2
Const IMAGE_BITMAP = 0
Const LR_COPYRETURNORG = &H4
'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
'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
Public Function Clip2File()
Dim strOutputPath As String, oPic As IPictureDisp
'Get the filename to save the bitmap to
strOutputPath = Environ("TEMP") & "\temp.bmp"
'Retrieve the picture from the clipboard...
Set oPic = GetClipPicture()
'... and save it to the file
If Not oPic Is Nothing Then
SavePicture oPic, strOutputPath
Clip2File = strOutputPath
Else
Clip2File = ""
MsgBox "Unable to retrieve bitmap from clipboard"
End If
End Function
Function GetClipPicture() As IPicture
Dim h As Long, hPicAvail As Long, hPtr As Long, _
hPal As Long, hCopy As Long
'Check if the clipboard contains a bitmap
hPicAvail = IsClipboardFormatAvailable(CF_BITMAP)
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(CF_BITMAP)
hCopy = CopyImage(hPtr, IMAGE_BITMAP, 0, 0, LR_COPYRETURNORG)
'Release the clipboard to other programs
h = CloseClipboard
'If we got a handle to the image, convert it into _
'a Picture object and return it
If hPtr <> 0 Then Set GetClipPicture = CreatePicture(hCopy, _
0, CF_BITMAP)
End If
End If
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
' 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 = PICTYPE_BITMAP ' Type of Picture
.hPic = hPic ' Handle to image.
.hPal = 0 ' Handle to palette (if bitmap).
End With
' Create the Picture object.
r = OleCreatePictureIndirect(uPicInfo, IID_IDispatch, True, IPic)
' Return the new Picture object.
Set CreatePicture = IPic
End Function
