Answer Posted / suresh
Any code you write to call a function pointer from Visual
Basic must be placed in a standard .BAS module ? you can't
put the code in a class module or attach it to a form. When
you call a declared function using the AddressOf keyword,
you should be aware of the following conditions:
? AddressOf can only be used immediately preceding an
argument in an argument list; that argument can be the name
of a user-defined sub, function, or property.
? The sub, function, or property you call with
AddressOf must be in the same project as the related
declarations and procedures.
? You can only use AddressOf with user-defined subs,
functions, or properties ? you cannot use it with external
functions declared with the Declare statement, or with
functions referenced from type libraries.
? You can pass a function pointer to an argument that
is typed As Any or As Long in a declared Sub, Function, or
user-defined type definition.
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