Excel 2013 64-bit VBA: Clipboard API doesn't work

问题

I used to be able to use Windows API calls in Excel VBA to set text on the clipboard. But ever since upgrading to 64-bit Office 2013, I cannot. Below is some code that does not error, but it is also not setting any text on the clipboard. Can someone help me test and troubleshoot?

After pasting the code below into a code module in VBA, you can test it in the immediate windows by typing Clipboard_SetData("Copy this to the clipboard.") and it should set that text on the clipboard and you would be able to paste it into any other application.

(I am using Windows 8, so I cannot use Microsoft Forms or the Data Object to manipulate the clipboard. It does not work properly on Windows 8.)

UPDATE and EDIT: Code below has been corrected and now works properly in 64-bit Excel, thanks to Jason Kurtz' answer below. If you find this useful, please vote his answer up.

Option Explicit

'Found 64-bit API declarations here: http://spreadsheet1.com/uploads/3/0/6/6/3066620/win32api_ptrsafe.txt
Private Declare PtrSafe Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As LongPtr) As LongPtr
Private Declare PtrSafe Function GlobalFree Lib "kernel32" (ByVal hMem As LongPtr) As LongPtr
Private Declare PtrSafe Function GlobalLock Lib "kernel32" (ByVal hMem As LongPtr) As LongPtr
Private Declare PtrSafe Function GlobalSize Lib "kernel32" (ByVal hMem As LongPtr) As LongPtr
Private Declare PtrSafe Function GlobalUnlock Lib "kernel32" (ByVal hMem As LongPtr) As Long
Private Declare PtrSafe Function OpenClipboard Lib "user32" (ByVal hwnd As LongPtr) As Long
Private Declare PtrSafe Function CloseClipboard Lib "user32" () As Long
Private Declare PtrSafe Function EmptyClipboard Lib "user32" () As Long
Private Declare PtrSafe Function SetClipboardData Lib "user32" (ByVal wFormat As Long, ByVal hMem As LongPtr) As LongPtr
Private Declare PtrSafe Function GetClipboardData Lib "user32" (ByVal wFormat As Long) As LongPtr
Private Declare PtrSafe Function lstrcpy Lib "kernel32" (ByVal lpString1 As Any, ByVal lpString2 As Any) As LongPtr

Private Const GMEM_MOVEABLE = &H2
Private Const GMEM_ZEROINIT = &H40
Private Const GHND = (GMEM_MOVEABLE Or GMEM_ZEROINIT)

Public Const CF_TEXT = 1
Public Const MAXSIZE = 4096

Sub ClipBoard_SetData(MyString As String)
'32-bit code by Microsoft: http://msdn.microsoft.com/en-us/library/office/ff192913.aspx
    Dim hGlobalMemory As LongPtr, lpGlobalMemory As LongPtr
    Dim hClipMemory As LongPtr, X As Long

    ' Allocate moveable global memory.
    hGlobalMemory = GlobalAlloc(GHND, Len(MyString) + 1)

    ' Lock the block to get a far pointer to this memory.
    lpGlobalMemory = GlobalLock(hGlobalMemory)

    ' Copy the string to this global memory.
    lpGlobalMemory = lstrcpy(lpGlobalMemory, MyString)

    ' Unlock the memory.
    If GlobalUnlock(hGlobalMemory) <> 0 Then
       MsgBox "Could not unlock memory location. Copy aborted."
       'Debug.Print "GlobalFree returned: " & CStr(GlobalFree(hGlobalMemory))
       GoTo OutOfHere
    End If

    ' Open the Clipboard to copy data to.
    If OpenClipboard(0&) = 0 Then
       MsgBox "Could not open the Clipboard. Copy aborted."
       Exit Sub
    End If

    ' Clear the Clipboard.
    X = EmptyClipboard()

    ' Copy the data to the Clipboard.
    hClipMemory = SetClipboardData(CF_TEXT, hGlobalMemory)

OutOfHere:
    If CloseClipboard() = 0 Then
       MsgBox "Could not close Clipboard."
    End If
End Sub

回答1:

OK, I got it now...

You need to change this line in your version of the code:

Private Declare PtrSafe Function lstrcpy Lib "kernel32" (ByVal lpString1 As String, ByVal lpString2 As String) As LongPtr

To this:

Private Declare PtrSafe Function lstrcpy Lib "kernel32" (ByVal lpString1 As Any, ByVal lpString2 As Any) As LongPtr

If you step through the code as you had it, you will see that the value of lpGlobalMemory changes when lstrcopy is called. When the types are changed to Any, the value stays the same.

Works for me on windows 7. Hope it works for you!

回答2:

Posting complete code for others. Tested and working on 32 Bit Versions of Excel 2007, 2010, 2013, 2016 and 64 Bit Excel 2013 All running on Windows 10

 'http://stackoverflow.com/questions/14738330/office-2013-excel-putinclipboard-is-different
Option Explicit
#If VBA7 Then
    Declare PtrSafe Function GlobalUnlock Lib "kernel32" (ByVal hMem As LongPtr) As LongPtr
    Declare PtrSafe Function GlobalLock Lib "kernel32" (ByVal hMem As LongPtr) As LongPtr
    Declare PtrSafe Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As LongPtr) As LongPtr
    Declare PtrSafe Function CloseClipboard Lib "User32" () As Long
    Declare PtrSafe Function OpenClipboard Lib "User32" (ByVal hwnd As LongPtr) As LongPtr
    Declare PtrSafe Function EmptyClipboard Lib "User32" () As Long
    Declare PtrSafe Function lstrcpy Lib "kernel32" (ByVal lpString1 As Any, ByVal lpString2 As Any) As LongPtr
    Declare PtrSafe Function SetClipboardData Lib "User32" (ByVal wFormat As Long, ByVal hMem As LongPtr) As LongPtr
#Else
    Declare Function GlobalUnlock Lib "kernel32" (ByVal hMem As Long) As Long
    Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long
    Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, ByVal dwBytes As Long) As Long
    Declare Function CloseClipboard Lib "User32" () As Long
    Declare Function OpenClipboard Lib "User32" (ByVal hwnd As Long) As Long
    Declare Function EmptyClipboard Lib "User32" () As Long
    Declare Function lstrcpy Lib "kernel32" (ByVal lpString1 As Any, ByVal lpString2 As Any) As Long
    Declare Function SetClipboardData Lib "User32" (ByVal wFormat As Long, ByVal hMem As Long) As Long
#End If

Public Const GHND = &H42
Public Const CF_TEXT = 1
Public Const MAXSIZE = 4096

Function ClipBoard_SetData(MyString As String)
   #If VBA7 Then
      Dim hGlobalMemory As LongPtr, lpGlobalMemory As LongPtr, hClipMemory As LongPtr
   #Else
      Dim hGlobalMemory As Long, lpGlobalMemory As Long, hClipMemory As Long
   #End If
   Dim x As Long
   ' Allocate moveable global memory.
   '-------------------------------------------
   hGlobalMemory = GlobalAlloc(GHND, Len(MyString) + 1)

   ' Lock the block to get a far pointer
   ' to this memory.
   lpGlobalMemory = GlobalLock(hGlobalMemory)

   ' Copy the string to this global memory.
   lpGlobalMemory = lstrcpy(lpGlobalMemory, MyString)

   ' Unlock the memory.
   If GlobalUnlock(hGlobalMemory) <> 0 Then
      MsgBox "Could not unlock memory location. Copy aborted. Please contact 14Fathoms."
      GoTo OutOfHere2
   End If

   ' Open the Clipboard to copy data to.
   If OpenClipboard(0&) = 0 Then
      MsgBox "Could not open the Clipboard. Copy aborted. Please contact 14Fathoms."
      Exit Function
   End If

   ' Clear the Clipboard.
   x = EmptyClipboard()

   ' Copy the data to the Clipboard.
   hClipMemory = SetClipboardData(CF_TEXT, hGlobalMemory)

OutOfHere2:

   If CloseClipboard() = 0 Then
      MsgBox "Could not close Clipboard. Please contact 14Fathoms."
   End If

End Function
Sub TestCOPYPASTE()
    Call ClipBoard_SetData("Hello World " & now())
    'Open notepad or in the immediate window and hit control-v
End Sub

回答3:

Use the code exactly as shown here:

http://msdn.microsoft.com/en-us/library/office/ff192913.aspx

except insert PtrSafe after Declare for all the API declarations.

The code should be in a module by itself.

Like this:

Option Explicit

Declare PtrSafe Function GlobalUnlock Lib "kernel32" (ByVal hMem As Long) _
   As Long
Declare PtrSafe Function GlobalLock Lib "kernel32" (ByVal hMem As Long) _
   As Long
Declare PtrSafe Function GlobalAlloc Lib "kernel32" (ByVal wFlags As Long, _
   ByVal dwBytes As Long) As Long
Declare PtrSafe Function CloseClipboard Lib "User32" () As Long
Declare PtrSafe Function OpenClipboard Lib "User32" (ByVal hwnd As Long) _
   As Long
Declare PtrSafe Function EmptyClipboard Lib "User32" () As Long
Declare PtrSafe Function lstrcpy Lib "kernel32" (ByVal lpString1 As Any, _
   ByVal lpString2 As Any) As Long
Declare PtrSafe Function SetClipboardData Lib "User32" (ByVal wFormat _
   As Long, ByVal hMem As Long) As Long

Public Const GHND = &H42
Public Const CF_TEXT = 1
Public Const MAXSIZE = 4096

Function ClipBoard_SetData(MyString As String)
   Dim hGlobalMemory As Long, lpGlobalMemory As Long
   Dim hClipMemory As Long, X As Long

   ' Allocate moveable global memory.
   '-------------------------------------------
   hGlobalMemory = GlobalAlloc(GHND, Len(MyString) + 1)

   ' Lock the block to get a far pointer
   ' to this memory.
   lpGlobalMemory = GlobalLock(hGlobalMemory)

   ' Copy the string to this global memory.
   lpGlobalMemory = lstrcpy(lpGlobalMemory, MyString)

   ' Unlock the memory.
   If GlobalUnlock(hGlobalMemory) <> 0 Then
      MsgBox "Could not unlock memory location. Copy aborted."
      GoTo OutOfHere2
   End If

   ' Open the Clipboard to copy data to.
   If OpenClipboard(0&) = 0 Then
      MsgBox "Could not open the Clipboard. Copy aborted."
      Exit Function
   End If

   ' Clear the Clipboard.
   X = EmptyClipboard()

   ' Copy the data to the Clipboard.
   hClipMemory = SetClipboardData(CF_TEXT, hGlobalMemory)

OutOfHere2:

   If CloseClipboard() = 0 Then
      MsgBox "Could not close Clipboard."
   End If

   End Function

来源：https://stackoverflow.com/questions/18668928/excel-2013-64-bit-vba-clipboard-api-doesnt-work

标签

vba

winapi

excel-vba

64-bit

office-2013