Jaafar Tribak
Well-known Member
- Joined
- Dec 5, 2002
- Messages
- 9,621
- Office Version
- 2016
- Platform
- Windows
Hi dear forum,
Workbook Sample
I am posting here a self-contained vba approach for getting members of an object without the need for an external dll such as the well known TLBNINF32.DLL .
The GetObjectFunctions function takes two arguments : (1) The object being browsed and (2) an optional arg specifying the function type being requested ie: Method, Property Let, Property Get etc...
The GetObjectFunctions function returns only function names and types. It doesn't provide other info such as function arguments or return types etc.
Tested on 32-bit and 64Bit.
1- API based code in a Standard Module:
2- Function Usage:
Regards.
Workbook Sample
I am posting here a self-contained vba approach for getting members of an object without the need for an external dll such as the well known TLBNINF32.DLL .
The GetObjectFunctions function takes two arguments : (1) The object being browsed and (2) an optional arg specifying the function type being requested ie: Method, Property Let, Property Get etc...
The GetObjectFunctions function returns only function names and types. It doesn't provide other info such as function arguments or return types etc.
Tested on 32-bit and 64Bit.
1- API based code in a Standard Module:
VBA Code:
Option Explicit
Private Type GUID
Data1 As Long
Data2 As Integer
Data3 As Integer
Data4(0 To 7) As Byte
End Type
Private Type TTYPEDESC
#If Win64 Then
pTypeDesc As LongLong
#Else
pTypeDesc As Long
#End If
vt As Integer
End Type
Private Type TPARAMDESC
#If Win64 Then
pPARAMDESCEX As LongLong
#Else
pPARAMDESCEX As Long
#End If
wParamFlags As Integer
End Type
Private Type TELEMDESC
tdesc As TTYPEDESC
pdesc As TPARAMDESC
End Type
Type TYPEATTR
aGUID As GUID
LCID As Long
dwReserved As Long
memidConstructor As Long
memidDestructor As Long
#If Win64 Then
lpstrSchema As LongLong
#Else
lpstrSchema As Long
#End If
cbSizeInstance As Integer
typekind As Long
cFuncs As Integer
cVars As Integer
cImplTypes As Integer
cbSizeVft As Integer
cbAlignment As Integer
wTypeFlags As Integer
wMajorVerNum As Integer
wMinorVerNum As Integer
tdescAlias As Long
idldescType As Long
End Type
Type FUNCDESC
memid As Long
#If Win64 Then
lReserved1 As LongLong
lprgelemdescParam As LongLong
#Else
lReserved1 As Long
lprgelemdescParam As Long
#End If
funckind As Long
INVOKEKIND As Long
CallConv As Long
cParams As Integer
cParamsOpt As Integer
oVft As Integer
cReserved2 As Integer
elemdescFunc As TELEMDESC
wFuncFlags As Integer
End Type
#If VBA7 Then
Private Declare PtrSafe Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As LongPtr)
Private Declare PtrSafe Function DispCallFunc Lib "oleAut32.dll" (ByVal pvInstance As LongPtr, ByVal offsetinVft As LongPtr, ByVal CallConv As Long, ByVal retTYP As Integer, ByVal paCNT As Long, ByRef paTypes As Integer, ByRef paValues As LongPtr, ByRef retVAR As Variant) As Long
Private Declare PtrSafe Sub SetLastError Lib "kernel32.dll" (ByVal dwErrCode As Long)
#Else
Private Declare Sub CopyMemory Lib "kernel32" Alias "RtlMoveMemory" (Destination As Any, Source As Any, ByVal Length As Long)
Private Declare Function DispCallFunc Lib "oleAut32.dll" (ByVal pvInstance As Long, ByVal offsetinVft As Long, ByVal CallConv As Long, ByVal retTYP As Integer, ByVal paCNT As Long, ByRef paTypes As Integer, ByRef paValues As Long, ByRef retVAR As Variant) As Long
Private Declare Sub SetLastError Lib "kernel32.dll" (ByVal dwErrCode As Long)
#End If
Function GetObjectFunctions(ByVal TheObject As Object, Optional ByVal FuncType As VbCallType) As Collection
Dim tTYPEATTR As TYPEATTR
Dim tFUNCDESC As FUNCDESC
Dim aGUID(0 To 11) As Long, lFuncsCount As Long
#If Win64 Then
Const vTblOffsetFac_32_64 = 2
Dim aTYPEATTR() As LongLong, aFUNCDESC() As LongLong, farPtr As LongLong
#Else
Const vTblOffsetFac_32_64 = 1
Dim aTYPEATTR() As Long, aFUNCDESC() As Long, farPtr As Long
#End If
Dim ITypeInfo As IUnknown
Dim IDispatch As IUnknown
Dim sName As String, oCol As New Collection
Const CC_STDCALL As Long = 4
Const IUNK_QueryInterface As Long = 0
Const IDSP_GetTypeInfo As Long = 16 * vTblOffsetFac_32_64
Const ITYP_GetTypeAttr As Long = 12 * vTblOffsetFac_32_64
Const ITYP_GetFuncDesc As Long = 20 * vTblOffsetFac_32_64
Const ITYP_GetDocument As Long = 48 * vTblOffsetFac_32_64
Const ITYP_ReleaseTypeAttr As Long = 76 * vTblOffsetFac_32_64
Const ITYP_ReleaseFuncDesc As Long = 80 * vTblOffsetFac_32_64
aGUID(0) = &H20400: aGUID(2) = &HC0&: aGUID(3) = &H46000000
CallFunction_COM ObjPtr(TheObject), IUNK_QueryInterface, vbLong, CC_STDCALL, VarPtr(aGUID(0)), VarPtr(IDispatch)
If IDispatch Is Nothing Then MsgBox "error": Exit Function
CallFunction_COM ObjPtr(IDispatch), IDSP_GetTypeInfo, vbLong, CC_STDCALL, 0&, 0&, VarPtr(ITypeInfo)
If ITypeInfo Is Nothing Then MsgBox "error": Exit Function
CallFunction_COM ObjPtr(ITypeInfo), ITYP_GetTypeAttr, vbLong, CC_STDCALL, VarPtr(farPtr)
If farPtr = 0& Then MsgBox "error": Exit Function
CopyMemory ByVal VarPtr(tTYPEATTR), ByVal farPtr, LenB(tTYPEATTR)
ReDim aTYPEATTR(LenB(tTYPEATTR))
CopyMemory ByVal VarPtr(aTYPEATTR(0)), tTYPEATTR, UBound(aTYPEATTR)
CallFunction_COM ObjPtr(ITypeInfo), ITYP_ReleaseTypeAttr, vbEmpty, CC_STDCALL, farPtr
For lFuncsCount = 0 To tTYPEATTR.cFuncs - 1
Call CallFunction_COM(ObjPtr(ITypeInfo), ITYP_GetFuncDesc, vbLong, CC_STDCALL, lFuncsCount, VarPtr(farPtr))
If farPtr = 0 Then MsgBox "error": Exit For
CopyMemory ByVal VarPtr(tFUNCDESC), ByVal farPtr, LenB(tFUNCDESC)
ReDim aFUNCDESC(LenB(tFUNCDESC))
CopyMemory ByVal VarPtr(aFUNCDESC(0)), tFUNCDESC, UBound(aFUNCDESC)
Call CallFunction_COM(ObjPtr(ITypeInfo), ITYP_ReleaseFuncDesc, vbEmpty, CC_STDCALL, farPtr)
Call CallFunction_COM(ObjPtr(ITypeInfo), ITYP_GetDocument, vbLong, CC_STDCALL, aFUNCDESC(0), VarPtr(sName), 0, 0, 0)
Call CallFunction_COM(ObjPtr(ITypeInfo), ITYP_GetDocument, vbLong, CC_STDCALL, aFUNCDESC(0), VarPtr(sName), 0, 0, 0)
With tFUNCDESC
If FuncType Then
If .INVOKEKIND = FuncType Then
'Debug.Print sName & vbTab & Switch(.INVOKEKIND = 1, "VbMethod", .INVOKEKIND = 2, "VbGet", .INVOKEKIND = 4, "VbLet", .INVOKEKIND = 8, "VbSet")
oCol.Add sName & vbTab & Switch(.INVOKEKIND = 1, "VbMethod", .INVOKEKIND = 2, "VbGet", .INVOKEKIND = 4, "VbLet", .INVOKEKIND = 8, "VbSet")
End If
Else
'Debug.Print sName & vbTab & Switch(.INVOKEKIND = 1, "VbMethod", .INVOKEKIND = 2, "VbGet", .INVOKEKIND = 4, "VbLet", .INVOKEKIND = 8, "VbSet")
oCol.Add sName & vbTab & Switch(.INVOKEKIND = 1, "VbMethod", .INVOKEKIND = 2, "VbGet", .INVOKEKIND = 4, "VbLet", .INVOKEKIND = 8, "VbSet")
End If
End With
sName = vbNullString
Next
Set GetObjectFunctions = oCol
End Function
#If Win64 Then
Private Function CallFunction_COM(ByVal InterfacePointer As LongLong, ByVal VTableOffset As Long, ByVal FunctionReturnType As Long, ByVal CallConvention As Long, ParamArray FunctionParameters() As Variant) As Variant
Dim vParamPtr() As LongLong
#Else
Private Function CallFunction_COM(ByVal InterfacePointer As Long, ByVal VTableOffset As Long, ByVal FunctionReturnType As Long, ByVal CallConvention As Long, ParamArray FunctionParameters() As Variant) As Variant
Dim vParamPtr() As Long
#End If
If InterfacePointer = 0& Or VTableOffset < 0& Then Exit Function
If Not (FunctionReturnType And &HFFFF0000) = 0& Then Exit Function
Dim pIndex As Long, pCount As Long
Dim vParamType() As Integer
Dim vRtn As Variant, vParams() As Variant
vParams() = FunctionParameters()
pCount = Abs(UBound(vParams) - LBound(vParams) + 1&)
If pCount = 0& Then
ReDim vParamPtr(0 To 0)
ReDim vParamType(0 To 0)
Else
ReDim vParamPtr(0 To pCount - 1&)
ReDim vParamType(0 To pCount - 1&)
For pIndex = 0& To pCount - 1&
vParamPtr(pIndex) = VarPtr(vParams(pIndex))
vParamType(pIndex) = VarType(vParams(pIndex))
Next
End If
pIndex = DispCallFunc(InterfacePointer, VTableOffset, CallConvention, FunctionReturnType, pCount, _
vParamType(0), vParamPtr(0), vRtn)
If pIndex = 0& Then
CallFunction_COM = vRtn
Else
SetLastError pIndex
End If
End Function2- Function Usage:
VBA Code:
'Example:
' List all Methods and Properties of the excel application Object.
Public Sub Test()
Dim oFuncCol As New Collection, i As Long, oObject As Object, sObjName As String
Set oObject = Application '<=== Choose here target object as required.
Set oFuncCol = GetObjectFunctions(TheObject:=oObject, FuncType:=0)
Cells.CurrentRegion.Offset(1).ClearContents
For i = 1 To oFuncCol.Count
Range("A" & i + 1) = Split(oFuncCol.Item(i), vbTab)(0): Range("B" & i + 1) = Split(oFuncCol.Item(i), vbTab)(1)
Next
Range("C2") = oFuncCol.Count
Cells(1).Resize(, 2).EntireColumn.AutoFit
On Error Resume Next
sObjName = oObject.Name
If Len(sObjName) Then
MsgBox "(" & oFuncCol.Count & ") functions found for:" & vbCrLf & vbCrLf & sObjName
End If
On Error GoTo 0
End SubRegards.
