VBA Conditional Compilation
How to
Vba7 was introduced alongside Office 2010 to support 64 bit versions of Office.
In a 64 bit process a pointer is 64 bits and in a 32 bit process a pointer is 32 bits.
VBA 7.1 introduced
The LongLong Type which represents a 64 bit pointer.
The LongPtr Type which is treated as a Long in a 32 bit environment and as a LongLong in a 64 bit environment.
The PtrSafe Attribute. If your running a 64 bit environment the VBA compiler will generate an error if any Declare statement does not include PtrSafe attribute.
The Vba7 conditional compilation argument.
Pre-defined Conditional Constants
| Constant | 16 bit | 32 bit | 64 bit |
|---|---|---|---|
| Vba6 | False | If Vba6 | False |
| Vba7 | False | If Vba7 | True |
| Win16 | True | False | False |
| Win32 | False | True | True |
| Win64 | False | False | True |
| Mac | False | If Mac | If Mac |
Win64/Win32 refer to the Office version, not the Windows version. For example Win32 = TRUE in 32-bit Office, even if the OS is a 64-bit version of Windows.
VBA 6
VBA 6 does not support LongPtr or PtrSafe so any code that is shared between the two environments, VBA 6 to VBA 7, must be conditionally defined.
In order to do this we need to add a conditional compilation block to the top of a module that will house the required Declare statements.
For Example:
#If Vba7 Then
Declare PtrSafe Sub CopyMemoryToVBA Lib "kernel32" _
Alias "RtlMoveMemory" _
(ByRef VBALocation As Any, _
ByVal SourceLoc As LongPtr, _
ByVal length As Long)
#Else
Declare Sub CopyMemoryToVBA Lib "kernel32" _
Alias "RtlMoveMemory" _
(ByRef VBALocation As Any, _
ByVal SourceLoc As Long, _
ByVal length As Long)
#End If
This will simply determine if the environment can handle LongPtr or PtrSafe declarations and choose the appropriate Declaration to compile with.
Declare Import Statements to work in all Versions of Office
#If Vba7 Then
' It's important to check for Win64 first,
' because Win32 will also return true when Win64 does.
#If Win64 Then
Declare PtrSafe Function GetFoo64 Lib "exampleLib32" () As LongLong
#Else
Declare PtrSafe Function GetFoo Lib "exampleLib32" () As Long
#End If
#Else
' Must be Vba6, the PtrSafe keyword didn't exist back then,
' so we need to declare Win32 imports a bit differently than above.
#If Win32 Then
Declare Function GetFoo Lib "exampleLib32"() As Long
#Else '16 bit
Declare Function GetFoo Lib "exampleLib"() As Integer
#End If
#End If
If you don't have to support anything older than Office 2010, this declaration works just fine.
' We only have 2010 installs, so we already know we have Vba7.
#If Win64 Then
Declare PtrSafe Function GetFoo64 Lib "exampleLib32" () As LongLong
#Else
Declare PtrSafe Function GetFoo Lib "exampleLib32" () As Long
#End If
Microsoft
VBA Conditional Compilation List
Although great care has been used to establish which declarations require longptr variables some may not be correct. Use with some degree of caution.
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32 Bit and ptrsafe 64 Bit Methods
Alphabetised
C
Declare Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As Long, ByVal hwnd As Long, ByVal msg As Long, ByVal wParam As Long, ByVallParam As Long) As Long
Declare PtrSafe Function CallWindowProc Lib "user32" Alias "CallWindowProcA" (ByVal lpPrevWndFunc As LongPtr, ByVal hwnd As LongPtr, ByVal msg As Long, ByVal wParam As LongPtr, ByVal lParam As LongPtr) As LongPtr
Declare Function CloseClipboard Lib "user32" () As Long
Declare PtrSafe Function CloseClipboard Lib "user32" () As LongPtr
Declare Function CoCreateGuid Lib "ole32" (ByRef Guid As Byte) As Long
Declare PtrSafe Function CoCreateGuid Lib "ole32.dll" (Guid As GUID_TYPE) As LongPtr
Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, hpvSource As Any, ByVal cbCopy As Long)
Declare PtrSafe Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (hpvDest As Any, hpvSource As Any, ByVal cbCopy As LongPtr)
Declare Sub CoTaskMemFree Lib "ole32" (ByVal hMem As Long)
Declare PtrSafe Sub CoTaskMemFree Lib "ole32" (ByVal hMem As LongPtr)
D
Declare Function DrawMenuBar Lib "user32" (ByVal hWnd As Long) As Long
Public Declare PtrSafe Function DrawMenuBar Lib "user32" (ByVal hWnd As LongPtr) As Long
E
Declare Function EmptyClipboard Lib "user32" () As Long
Declare PtrSafe Function EmptyClipboard Lib "user32" () As Long
Declare Function EnableMenuItem Lib "user32" (ByVal hMenu As Long, ByVal wIDEnableItem As Long, ByVal wEnable As Long) As Long
Declare PtrSafe Function EnableMenuItem Lib "user32" (ByVal hMenu As LongPtr, ByVal wIDEnableItem As Long, ByVal wEnable As Long) As Long
Declare Function EnumWindows Lib "user32" (ByVal lpEnumFunc As Long, ByVal lParam As Long) As Long
Declare PtrSafe Function EnumWindows Lib "user32" (ByVal lpEnumFunc As LongPtr, ByVal lParam As LongPtr) As Long
Declare Function ExtractIcon Lib "shell32.dll" Alias "ExtractIconA" (ByVal hInst As Long, ByVal lpszExeFileName As String, ByVal nIconIndex As Long) As Long
Declare PtrSafe Function ExtractIcon Lib "shell32.dll" Alias "ExtractIconA" (ByVal hInst As LongPtr, ByVal lpszExeFileName As String, ByVal nIconIndex As Long) As LongPtr
F
Declare Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As Long
Declare PtrSafe Function FindWindow Lib "user32" Alias "FindWindowA" (ByVal lpClassName As String, ByVal lpWindowName As String) As LongPtr
Declare Function FindWindowEx Lib "user32Alias "FindWindowExA" (ByVal hWnd1 As Long, ByVal hWnd2 As Long, _ ByVal lpsz1 As String, ByVal lpsz2 As String) As Long
Declare PtrSafe Function FindWindowEx Lib "USER32" _ Alias "FindWindowExA" (ByVal hWnd1 As LongPtr, ByVal hWnd2 As LongPtr, _ ByVal lpsz1 As String, ByVal lpsz2 As String) As LongPtr
G
Declare Function GdipCreateBitmapFromFile Lib "GDIPlus" (ByVal filename As Long, bitmap As Long) As Long
Private Declare PtrSafe Function GdipCreateBitmapFromFile Lib "GDIPlus" (ByVal filename As LongPtr, bitmap As LongPtr) As LongPtr
Declare Function GdipCreateHBITMAPFromBitmap Lib "GDIPlus" (ByVal bitmap As Long, hbmReturn As Long, ByVal background As Long) As Long
Private Declare PtrSafe Function GdipCreateHBITMAPFromBitmap Lib "GDIPlus" (ByVal bitmap As LongPtr, hbmReturn As LongPtr, ByVal background As Long) As LongPtr
Declare Function GdipDisposeImage Lib "GDIPlus" (ByVal image As Long) As Long
Private Declare PtrSafe Function GdipDisposeImage Lib "GDIPlus" (ByVal image As LongPtr) As LongPtr
Declare Function GdiplusShutdown Lib "GDIPlus" (ByVal token As Long) As Long
Private Declare PtrSafe Function GdiplusShutdown Lib "GDIPlus" (ByVal token As LongPtr) As LongPtr
Declare Function GdiplusStartup Lib "GDIPlus" (token As Long, inputbuf As GdiplusStartupInput, Optional ByVal outputbuf As Long = 0) As Long
Private Declare PtrSafe Function GdiplusStartup Lib "GDIPlus" (token As LongPtr, inputbuf As GdiplusStartupInput, Optional ByVal outputbuf As LongPtr = 0) As LongPtr
Declare Function GetActiveWindow Lib "user32" () As Long
Declare PtrSafe Function GetActiveWindow Lib "user32" () As Long
Declare Function GetClassName Lib "USER32" Alias "GetClassNameA" (ByVal hWnd As Long, ByVal lpClassName As String, ByVal nMaxCount As Long) As Long
Public Declare PtrSafe Function GetClassName Lib "USER32" Alias "GetClassNameA" (ByVal hWnd As LongPtr, ByVal lpClassName As String, ByVal nMaxCount As LongPtr) As Long
Declare Function GetClipboardData Lib "user32" (ByVal wFormat As Long) As Long
Declare PtrSafe Function GetClipboardData Lib "user32" (ByVal wFormat As Long) As LongPtr
Declare Function GetCursorPos Lib "user32" (lpPoint As POINTAPI) As Long
Declare PtrSafe Function GetCursorPos Lib "user32" Alias "GetCursorPos" (lpPoint As POINTAPI) As Long
Declare Function GetDiskFreeSpaceEx Lib "kernel32" _ Alias "GetDiskFreeSpaceExA" (ByVal lpDirectoryName As String, _ lpFreeBytesAvailableToCaller As Currency, _ lpTotalNumberOfBytes As Currency, _ lpTotalNumberOfFreeBytes As Currency) As Long
Declare PtrSafe Function GetDiskFreeSpaceEx Lib "kernel32" Alias _ "GetDiskFreeSpaceExA" (ByVal lpDirectoryName As String, _ lpFreeBytesAvailableToCaller As Currency, lpTotalNumberOfBytes As _ Currency, lpTotalNumberOfFreeBytes As Currency) As LongPtr
Declare Function GetFileVersionInfo Lib "version.dll" Alias "GetFileVersionInfoA" (ByVal lptstrFilename As String, ByVal dwHandle As Long, ByVal dwLen As Long, lpData As Any) As Long
Declare PtrSafe Function GetFileVersionInfo Lib "version.dll" Alias "GetFileVersionInfoA" (ByVal lptstrFilename As String, ByVal dwHandle As LongPtr, ByVal dwLen As LongPtr, lpData As Any) As LongPtr
Declare Function GetFileVersionInfoSize Lib "version.dll" Alias "GetFileVersionInfoSizeA" (ByVal lptstrFilename As String, lpdwHandle As Long) As Long
Declare PtrSafe Function GetFileVersionInfoSize Lib "version.dll" Alias "GetFileVersionInfoSizeA" (ByVal lptstrFilename As String, lpdwHandle As LongPtr) As LongPtr
Declare Function GetForegroundWindow Lib "User32.dll" () As Long
Declare PtrSafe Function GetForegroundWindow Lib "User32.dll" () As LongPtr
Declare Function GetIpAddrTable Lib "Iphlpapi" (pIPAdrTable As Byte, pdwSize As Long, ByVal Sort As Long) As Long
Declare PtrSafe Function GetIpAddrTable Lib "Iphlpapi" (pIPAdrTable As Byte, pdwSize As LongPtr, ByVal Sort As LongPtr) As Long
Declare Function GetSystemMenu Lib "user32" (ByVal hwnd As Long, ByVal wRevert As Long) As Long
Declare PtrSafe Function GetSystemMenu Lib "user32" (ByVal hwnd As LongPtr, ByVal bRevert As Long) As LongPtr
Declare Function GetSystemMetrics32 Lib "user32" Alias "GetSystemMetrics" (ByVal nIndex As Long) As Long
Declare PtrSafe Function GetSystemMetrics32 Lib "user32" Alias "GetSystemMetrics" (ByVal nIndex As Long) As Long
Declare Function GetTickCount Lib "Kernel32" () As LongPtr
Declare PtrSafe Function GetTickCount Lib "Kernel32" Alias "GetTickCount64" () As LongPtr
Declare Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" (lpVersionInformation As OSVERSIONINFO) As Long
Declare PtrSafe Function GetVersionEx Lib "kernel32" Alias "GetVersionExA" (lpVersionInformation As OSVERSIONINFO) As Long
Declare Function GetWindow Lib "user32" (ByVal hWnd As Long, ByVal wCmd As Long) As Long
Declare PtrSafe Function GetWindow Lib "user32" (ByVal hWnd As LongPtr, ByVal wCmd As Long) As LongPtr
Declare Function GetWindowLongPtr Lib "user32" Alias "GetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long) As Long
Declare PtrSafe Function GetWindowLongPtr Lib "user32" Alias "GetWindowLongPtrA" (ByVal hwnd As LongPtr, ByVal nIndex As Long) As LongPtr
Declare Function GetWindowRect Lib "user32" ( ByVal hwnd As Long, lpRect As RECT) As Long
Declare PtrSafe Function GetWindowRect Lib "user32" (ByVal hwnd As LongPtr, lpRect As RECT) As Long
Declare Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hWnd As Long, ByVal lpString As String, ByVal cch As Long) As Long
Declare PtrSafe Function GetWindowText Lib "user32" Alias "GetWindowTextA" (ByVal hWnd As LongPtr, ByVal lpString As String, ByVal cch As Long) As Long
Declare Function GlobalAlloc Lib "kernel32" (ByVal wFlags&, ByVal dwBytes As Long) As Long
Declare PtrSafe Function GlobalAlloc Lib "kernel32" (ByVal wFlags&, ByVal dwBytes As LongPtr) As LongPtr
Declare Function GlobalFree Lib "kernel32" (ByVal hMem As Long) As Long
Declare PtrSafe Function GlobalFree Lib "kernel32" (ByVal hMem As LongPtr) As LongPtr
Declare Function GlobalLock Lib "kernel32" (ByVal hMem As Long) As Long
Declare PtrSafe Function GlobalLock Lib "kernel32" (ByVal hMem As LongPtr) As LongPtr
Declare Function GlobalSize Lib "kernel32" (ByVal hMem As Long) As Long
Declare PtrSafe Function GlobalSize Lib "kernel32" (ByVal hMem As LongPtr) As LongPtr
Declare Function GlobalUnlock Lib "kernel32" (ByVal hMem As Long) As Long
Declare PtrSafe Function GlobalUnlock Lib "kernel32" (ByVal hMem As LongPtr) As LongPtr
I
Declare Function InternetGetConnectedStateEx Lib "wininet.dll" (ByRef lpdwFlags As Long, ByVal lpszConnectionName As String, ByVal dwNameLen As Integer, ByVal dwReserved As Long) As Long
Declare PtrSafe Function InternetGetConnectedStateEx Lib "wininet.dll" (ByRef lpdwFlags As LongPtr, ByVal lpszConnectionName As String, ByVal dwNameLen As Integer, ByVal dwReserved As Long) As Long
Declare Function IsWindowVisible Lib "user32" (ByVal hWnd As Long) As Long
Declare PtrSafe Function IsWindowVisible Lib "user32" (ByVal hWnd As LongPtr) As LongPtr
L
Declare Function lstrcpy Lib "kernel32" (ByVal lpString1 As Any, ByVal lpString2 As Any) As Long
Declare PtrSafe Function lstrcpy Lib "kernel32" (ByVal lpString1 As Any, ByVal lpString2 As Any) As LongPtr
Declare Function lstrlen Lib "kernel32" Alias "lstrlenA" (ByVal lpString As String) As Long
Declare PtrSafe Function lstrlen Lib "kernel32" Alias "lstrlenA" (ByVal lpString As String) As LongPtr
M
Declare Function MultiByteToWideChar Lib "kernel32" (ByVal CodePage As Long, ByVal dwFlags As Long, lpMultiByteStr As Any, ByVal cchMultiByte As Long, ByVal lpWideCharStr As Long, ByVal cchWideChar As Long) As Long
Declare PtrSafe Function MultiByteToWideChar Lib "kernel32" (ByVal CodePage As Long, ByVal dwFlags As Long, ByVal lpMultiByteStr As String, ByVal cchMultiByte As Long, ByVal lpWideCharStr As String, ByVal cchWideChar As Long) As Long
O
Declare Function OpenClipboard Lib "user32" (ByVal hWnd As Long) As Long
Declare PtrSafe Function OpenClipboard Lib "user32" (ByVal hWnd As LongPtr) As LongPtr
Declare Function OpenIcon Lib "user32" Alias "OpenIcon" (ByVal hwnd As Long) As Long
Declare PtrSafe Function OpenIcon Lib "user32" Alias "OpenIcon" (ByVal hwnd As LongPtr) As Long
S
Declare Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As Long, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Declare PtrSafe Function SendMessage Lib "user32" Alias "SendMessageA" (ByVal hWnd As LongPtr, ByVal wMsg As Long, ByVal wParam As Long, ByVal lParam As Long) As Long
Declare Function SetClipboardData Lib "user32" (ByVal wFormat As Long, ByVal hMem As Long) As Long
Declare PtrSafe Function SetClipboardData Lib "user32" (ByVal wFormat As Long, ByVal hMem As LongPtr) As LongPtr
Declare Function SetCursorPos Lib "user32" (ByVal x As Long, ByVal y As Long) As Long
Declare PtrSafe Function SetCursorPos Lib "user32" (ByVal x As Long, ByVal y As Long) as Long
Declare Function SetForegroundWindow Lib "user32" (ByVal hwnd As Long) As Long
Declare PtrSafe Function SetForegroundWindow Lib "user32" (ByVal hwnd As LongPtr) As Long
Declare Function SetWindowLongPtr Lib "user32" Alias "SetWindowLongA" (ByVal hwnd As Long, ByVal nIndex As Long, ByVal dwNewLong As Long) As Long
Declare PtrSafe Function SetWindowLongPtr Lib "user32" Alias "SetWindowLongPtrA" (ByVal hwnd As LongPtr, ByVal nIndex As Long, ByVal dwNewLong As LongPtr) As LongPtr
Declare Function SHBrowseForFolder Lib "shell32.dll" Alias "SHBrowseForFolderA" (lpBrowseInfo As BROWSEINFO) As Long
Declare PtrSafe Function SHBrowseForFolder Lib "shell32.dll" Alias "SHBrowseForFolderA" (lpBrowseInfo As BROWSEINFO) As LongPtr
Declare Function Shell_NotifyIcon Lib "shell32.dll" Alias "Shell_NotifyIconA" (ByVal dwMessage As Long, lpData As NOTIFYICONDATA) As Long
Declare PtrSafe Function Shell_NotifyIcon Lib "shell32.dll" Alias "Shell_NotifyIconA" (ByVal dwMessage As Long, lpData As NOTIFYICONDATA) As LongPtr
Declare Function SHGetFileInfo Lib "shell32.dll" Alias "SHGetFileInfoA" (ByVal pszPath As String, ByVal dwFileAttributes As Long, psfi As SHFILEINFO, ByVal cbSizeFileInfo As Long, ByVal uFlags As Long) As Long
Declare PtrSafe Function SHGetFileInfo Lib "shell32.dll" Alias "SHGetFileInfoA" (ByVal pszPath As String, ByVal dwFileAttributes As Long, psfi As SHFILEINFO, ByVal cbFileInfo As Long, ByVal uFlags As Long) As LongPtr
Declare Function SHGetPathFromIDList Lib "shell32.dll" Alias "SHGetPathFromIDListA" (ByVal pidl As Long, ByVal pszPath As String) As Long
Declare PtrSafe Function SHGetPathFromIDList Lib "shell32.dll" Alias "SHGetPathFromIDListA" (ByVal pidl As LongPtr, ByVal pszPath As String) As Long
Declare Function ShowWindow Lib "user32" Alias "ShowWindow" (ByVal hwnd As Long, ByVal nCmdShow As Long) As Long
Declare PtrSafe Function ShowWindow Lib "user32" Alias "ShowWindow" (ByVal hwnd As LongPtr, ByVal nCmdShow As Long) As Long
V
Declare Function VerQueryValue Lib "version.dll" Alias "VerQueryValueA" (pBlock As Any, ByVal lpSubBlock As String, lpBuffer As Any, nVerSize As Long) As Long
Declare PtrSafe Function VerQueryValue Lib "version.dll" Alias "VerQueryValueA" (pBlock As Any, ByVal lpSubBlock As String, lpBuffer As Any, nVerSize As LongPtr) As LongPtr
W
Declare Function WideCharToMultiByte Lib "kernel32" (ByVal CodePage As Long, ByVal dwFlags As Long, ByVal lpWideCharStr As Long, ByVal cchWideChar As Long, lpMultiByteStr As Any, ByVal cchMultiByte As Long, ByVal lpDefaultChar As Long, ByVal lpUsedDefaultChar As Long) As Long
Declare PtrSafe Function WideCharToMultiByte Lib "kernel32" Alias "WideCharToMultiByte" (ByVal CodePage As Long, ByVal dwFlags As Long, ByVal lpWideCharStr As String, ByVal cchWideChar As Long, ByVal lpMultiByteStr As String, ByVal cchMultiByte As Long, ByVal lpDefaultChar As String, ByVal lpUsedDefaultChar As LongPtr) As Long
Declare Sub wlib_AccColorDialog Lib "msaccess.exe" Alias "#53" (ByVal hwnd As Long, lngRGB As Long)
Declare PtrSafe Sub wlib_AccColorDialog Lib "msaccess.exe" Alias "#53" (ByVal hwnd As LongPtr, lngRGB As Long)
Object Types
Type BROWSEINFO
hOwner As Long
pidlRoot As Long
pszDisplayName As String
lpszTitle As String
ulFlags As Long
lpfn As Long
lParam As Long
iImage As Long
End Type
Type BROWSEINFO
hOwner As LongPtr
pidlRoot As LongPtr
pszDisplayName As String
lpszTitle As String
ulFlags As Long
lpfn As LongPtr
lParam As LongPtr
iImage As Long
End Type
Type FindWindowParameters
strTitle As String 'INPUT
hWnd As Long 'OUTPUT
End Type
Type FindWindowParameters
strTitle As String 'INPUT
hWnd As LongPtr 'OUTPUT
End Type
Type GdiplusStartupInput
GdiplusVersion As Long
DebugEventCallback As Long
SuppressBackgroundThread As Long
SuppressExternalCodecs As Long
End Type
Type GdiplusStartupInput
GdiplusVersion As Long
DebugEventCallback As LongPtr
SuppressBackgroundThread As Long
SuppressExternalCodecs As Long
End Type
Identical 32 vs 64
Type GUID_TYPE
Data1 As Long
Data2 As Integer
Data3 As Integer
Data4(7) As Byte
End Type
Type OPENFILENAME
lStructSize As Long
hwndOwner As Long
hLeads_User As Long
lpstrFilter As String
lpstrCustomFilter As String
nMaxCustFilter As Long
iFilterIndex As Long
lpstrFile As String
nMaxFile As Long
lpstrFileTitle As String
nMaxFileTitle As Long
lpstrInitialDir As String
lpstrTitle As String
Flags As Long
nFileOffset As Integer
nFileExtension As Integer
lpstrDefExt As String
lCustData As Long
lpfnHook As Long
lpTemplateName As String
End Type
Type OPENFILENAME
lStructSize As Long
hwndOwner As LongPtr
hInstance As LongPtr
lpstrFilter As String
lpstrCustomFilter As Long
nMaxCustrFilter As Long
nFilterIndex As Long
lpstrFile As String
nMaxFile As Long
lpstrFileTitle As String
nMaxFileTitle As Long
lpstrInitialDir As String
lpstrTitle As String
Flags As Long
nFileOffset As Integer
nFileExtension As Integer
lpstrDefExt As String
lCustrData As LongPtr
lpfnHook As LongPtr
lpTemplateName As Long
End Type
Identical 32 vs 64
Type OSVERSIONINFO
dwOSVersionInfoSize As Long
dwMajorVersion As Long
dwMinorVersion As Long
dwBuildNumber As Long
dwPlatformId As Long
szCSDVersion As String * 128
End Type
Type POINTAPI
X_Pos As Long
Y_Pos As Long
End Type
Type POINTAPI
X_Pos As Long
Y_Pos As Long
End Type
Type SHFILEINFO
hIcon As Long
iIcon As Long
dwAttributes As Long
szDisplayName As String * MAX_PATH
szTypeName As String * 80
End Type
Type SHFILEINFO
hIcon As LongPtr
iIcon As Long
dwAttributes As Long
szDisplayName As String * MAX_PATH
szTypeName As String * 80
End Type