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undocumented varptr in vb7

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Submitted on: 1/1/2015 7:43:00 AM
By: Izek_S (from psc cd)  
Level: Intermediate
User Rating: By 9 Users
Compatibility: VB.NET
Views: 1721
 
     VB6 has 3 undocumented functions. VarPtr, StrPtr, and ObjPtr.StrPtr returns object of a string, VarPtr returns address of any other variable and ObjPtr returns address of an object. In VB.Net these 3 functions are abosolete but their functionality is still avaliable.

 
				


Public Function VarPtr(ByVal o As Object) As Integer

Dim GC As System.Runtime.InteropServices.GCHandle = System.Runtime.InteropServices.GCHandle.Alloc(o, System.Runtime.InteropServices.GCHandleType.Pinned)

Dim ret As Integer = GC.AddrOfPinnedObject.ToInt32

GC.Free()

Return ret

End Function


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