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How to deal with callback function in MFC C++ ?

How to deal with callback function in MFC C++ ?

API Declarations


Declare Function A Lib "Sekure" Alias "_A@8" (ByVal iPort As Integer, vFunc As Variant) As Integer



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//global declaration
typedef void (*FINGER_STATUS) (short);
FINGER_STATUS FingStatus = NULL;

SEKURE_API int __stdcall int A (int comport, void *fnc)
{
	FingStatus = (FINGER_STATUS)pFS;
	int nRet = GetInfo(comport);
		
	if (nRet)	{
		if(FingStatus)	
			FingStatus( nRet );
		}
	return OK;
......
}

in VB =>
Public Sub Verify()
   Msgbox "HI"
   ..........
End Sub

Private Sub A_Click()
    ret= A(1, AddressOf Verify)
......
End Sub