所以我试图让以下代码工作。我不再熟悉VBA / Access了，因为我多年没用过它了。我正在使用Access 2010并提前为一些非常基本的问题道歉。
我试图运行它。我创建了一个模块并开始调试并立即关闭我获得了一个＆＃34;重复选项声明＆＃34;突出显示第一个＆＃34;选项比较文本＆＃34;。
接下来，我如何/在哪里定义要保存的文件路径？如何启动屏幕截图？我是否必须按下＆＃34;播放＆＃34;从VBA运行此操作？按钮每次？
谢谢，再次，抱歉初学者问题
Option Compare Database
'***********************************************************************************************
' * Please leave any Trademarks or Credits in place.
' *
' * ACKNOWLEDGEMENT TO CONTRIBUTORS :
' * STEPHEN BULLEN, 15 November 1998 - Original PastPicture code
' * G HUDSON, 5 April 2010 - Pause Function
' * LUTZ GENTKOW, 23 July 2011 - Alt + PrtScrn
' * PAUL FRANCIS, 11 April 2013 - Putting all pieces together, bridging the 32 bit and 64 bit version.
' * CHRIS O, 12 April 2013 - Code suggestion to work on older versions of Access.
' *
' * DESCRIPTION: Creates a standard Picture object from whatever is on the clipboard.
' * This object is then saved to a location on the disc. Please note, this
' * can also be assigned to (for example) and Image control on a userform.
' *
' * 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, Access World Forum, VBForums.
' *
' * To use it, just copy this module into your project, then you can use:
' * SaveClip2Bit("C:\Pics\Sample.bmp")
' * to save this to a location on the Disc.
' * (Or)
' * Set ImageControl.Image = PastePicture
' * to paste a picture of whatever is on the clipboard into a standard image control.
' *
' * PROCEDURES:
' * PastePicture : The entry point for 'Setting' the Image
' * CreatePicture : Private function to convert a bitmap or metafile handle to an OLE reference
' * fnOLEError : Get the error text for an OLE error code
' * SaveClip2Bit : The entry point for 'Saving' the Image, calls for PastePicture
' * AltPrintScreen: Performs the automation of Alt + PrtScrn, for getting the Active Window.
' * Pause : Makes the program wait, to make sure proper screen capture takes place.
'**************************************************************************************************
Option Explicit
Option Compare Text
'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
'Windows API Function Declarations
#If Win64 = 1 And VBA7 = 1 Then
'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 Long) As Long
'Get a pointer to the bitmap/metafile
Private Declare PtrSafe Function GetClipboardData Lib "user32" (ByVal wFormat As Integer) As Long
'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 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 PtrSafe 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 PtrSafe 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
'Uses the Keyboard simulation
Private Declare PtrSafe Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo As Long)
#Else
'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 "oleaut32.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
'Uses the Keyboard simulation
Private Declare Sub keybd_event Lib "user32" (ByVal bVk As Byte, ByVal bScan As Byte, ByVal dwFlags As Long, ByVal dwExtraInfo 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
Private Const KEYEVENTF_KEYUP = &H2
Private Const VK_SNAPSHOT = &H2C
Private Const VK_MENU = &H12
' Subroutine : AltPrintScreen
' Purpose : Capture the Active window, and places on the Clipboard.
Sub AltPrintScreen()
keybd_event VK_MENU, 0, 0, 0
keybd_event VK_SNAPSHOT, 0, 0, 0
keybd_event VK_SNAPSHOT, 0, KEYEVENTF_KEYUP, 0
keybd_event VK_MENU, 0, KEYEVENTF_KEYUP, 0
End Sub
' Subroutine : PastePicture
' Purpose : Get a Picture object showing whatever's on the clipboard.
Function PastePicture() As IPicture
'Some pointers
Dim h As Long, hPtr As Long, hPal As Long, lPicType As Long, hCopy As Long
'Check if the clipboard contains the required format
If IsClipboardFormatAvailable(CF_BITMAP) 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 PastePicture = CreatePicture(hCopy, 0, CF_BITMAP)
End If
End If
End Function
' Subroutine : CreatePicture
' Purpose : Converts a image (and palette) handle into a Picture object.
' NOTE : Requires a reference to the "OLE Automation" type library
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 = PICTYPE_BITMAP ' Type of Picture
.hPic = hPic ' Handle to image.
.hPal = hPal ' Handle to palette (if bitmap).
End With
' Create the Picture object.
r = OleCreatePictureIndirect(uPicInfo, IID_IDispatch, True, IPic)
' If an error occurred, 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
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
' Routine : SaveClip2Bit
' Purpose : Saves Picture object to desired location.
' Arguments : Path to save the file
Public Sub SaveClip2Bit(savepath As String)
On Error GoTo errHandler:
AltPrintScreen
Pause (3)
SavePicture PastePicture, savepath
errExit:
Exit Sub
errHandler:
Debug.Print "Save Picture: (" & Err.Number & ") - " & Err.Description
Resume errExit
End Sub
' Routine : Pause
' Purpose : Gives a short interval for proper image capture.
' Arguments : Seconds to wait.
Public Function Pause(NumberOfSeconds As Variant)
On Error GoTo Err_Pause
Dim PauseTime As Variant, start As Variant
PauseTime = NumberOfSeconds
start = Timer
Do While Timer < start + PauseTime
DoEvents
Loop
Exit_Pause:
Exit Function
Err_Pause:
MsgBox Err.Number & " - " & Err.Description, vbCritical, "Pause()"
Resume Exit_Pause
End Function
答案 0 :(得分：1)
模块中只能有一个Option Compare ...行。
保存位置路径作为参数传递给过程Public Sub SaveClip2Bit(savepath As String)。
从过程的注释行SaveClip2Bit("C:\Pics\Sample.bmp")中显示的某处调用此过程。此示例显示了硬编码的路径和文件名。每次代码运行时，图像都将保存到该路径和文件名中。应该写入现有文件。确保在C：root位置有一个名为Pics的文件夹。有一些方法可以使这个路径和文件名动态，但这是另一个问题的主题。 （提示：Windows FileDialog）
必须使用其他方法将内容保存到剪贴板，因为此代码不会创建图像，它只需要剪贴板上的任何内容。
Windows SnippingTool可以将图像保存到剪贴板。在这种情况下，为什么要烦恼这个代码？只需继续使用SnippingTool即可保存使用它创建的图像。
如果从网页保存图像，代码可能很有用。有时，可以使用右键单击＆gt;将网页中的图像保存到剪贴板。复制。或者如果使用键盘丝网印刷功能键。
代码必须由某些事件触发，例如点击按钮。