Pointer to function

Why do you need void*?

Just "Function" should evaluate to a pointer to the function, e.g.

void Function(char* string);
....
void (*fptr)(char*); /* Declare fptr as a pointer to a function returning void */
                          /* and taking a char* parameter */
fptr = Function;

If you want it void*, then just cast it.

but I have definition in header

typedef void (WINAPI *pFunction)(char *string);

and you method not compile....

error C2440: '=' : cannot convert from 'void (__stdcall CMyClassDlg::*)(char *)' to 'void (__stdcall *)(char *)'

How about you say what you're actually trying to do.  It seems like you actually want a pointer to a _member_ function, which is different.  You'll also have a problem passing a pointer to a member function to something which doesn't expect it, as the implied first parameter (this) will not be expected.

how I can do?

function to need pointer :

void WINAPI Set (UINT Code, void *pFunc);

help please

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gothick is right.  The problem is that the function is a non-static member of a class.  A pointer to a non-static member function is different than a pointer to a non-member function and there is no posibility to convert between them.  You must make the member function a static member function or you must use a special type of pointer called a "pointer-to-member"  This type of pointer is very different than other pointers and cannot be converted to  a "regular" pointer.  

It would help if we knew what you are trying to do.

You 're using Borland with non-borland extensions maybe . Try casting using (*pfunction) . For example , some borland modes require the cast of (DLGPROC) , (WNDPROC) etc in "special" function pointers.

Now I understood my source , this other problem

>void Function (char* string);
 > I need get pointer (void*) to this function how?

You can do this simply by
void (*fp) (char* string);

fp getpointer(void*)
{
   fp = Function;
   return fp;
}

If it is a C function and not a functon of C++ Class.

>how I can do?
>      function to need pointer :
>    void WINAPI Set (UINT Code, void *pFunc);
>      help please

for this you should do like this
void WINAPI Set(UINT Code, (void (*fp) (char* string)) )

ramshakal,  have you read the question history?

question answered by gothick

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yes
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