How to get the voice of microphone?

private unsafe static extern UInt32 ShellExecuteEx ( _SHELLEXECUTEINFO* pInfo );

--for structures do like this-- please compare this with shellexecuteinfo structure documentation in MSDN, each item is changed to the managed types

public unsafe struct _SHELLEXECUTEINFO

public int cbSize;

public UInt32 fMask;

public UInt32 hwnd;

public char* lpVerb;

public char* lpFile;

public char* lpParameters;

public char* lpDirectory;

public Int32 nShow;

public IntPtr hInstApp;

public IntPtr lpIDList;

public char* lpClass;

public IntPtr hkeyClass;

public UInt32 dwHotKey;

public IntPtr hIcon;

public IntPtr hProcess;