help me, please! about wow32.dll

Hello, all
in the winapi help i found the wowhandle16 function to converts a 32bit
Handle to a
handle for use in a 16bit process. Delphi doesn't support the WOW32.dll.

So I have to declare the function myself.  But the second parameter,
WOW_HANDLE_TYPE, is not explained.  Can anyone tell me what the possible

values are? In the winapi help file they only give the constant-names,
not the values.
And what  type is the parameter? Word?
thanks for help...