I noticed that Office 2010 comes with Visual Basic for Applications 7.0. However I can't seem to find much documentation on what changes were made. Does anyone have a summary of the changes, or any resources describing the differences?
There's not a whole lot that has changed between VBA6 and VBA7. VBA7 was introduced to support 64-bit versions of both Office and Windows (see below on what those differences are). Here are the key changes:
64-bit support, primarily for API calls. This is both used to make your code work with your OS/Office version as well as others' (i.e. someone on Office 2003/WinXP)
If you are on a 64-bit version of Windows, but are on a 32-bit version of Office, you can declare API calls like below. .
#If Win64 Then Declare PtrSafe Function GetTickCount64 Lib "kernel32"() As LongLong #Else Declare PtrSafe Function GetTickCount Lib "kernel32" () As Long #End If
If you are on a 64-bit version of Windows, and are on a 64-bit version of Office, you can declare API calls like: .
#If VBA7 Then Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" ( _ ByVal lpClassName As String, _ ByVal lpWindowName As String) As LongPtr #Else Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal _ lpClassName As String, ByVal lpWindowName As String) As Long #End If
To support this, there are:
Three new keywords (2 data types and 1 modifier): LongPtr, LongLong and PtrSafe
One new function: CLngLng() (i.e. Int64)
The new compilation constants as used above:
VBA7
andWin64
This piece on MSDN has more on the changes in VBA 7 for Office 2010: