Type Alias PFNCALLBACK

pub type PFNCALLBACK = Option<unsafe extern "system" fn(wtype: u32, wfmt: u32, hconv: HCONV, hsz1: HSZ, hsz2: HSZ, hdata: HDDEDATA, dwdata1: usize, dwdata2: usize) -> HDDEDATA>;

Aliased Type

enum PFNCALLBACK {
    None,
    Some(unsafe extern "system" fn(u32, u32, *mut c_void, *mut c_void, *mut c_void, *mut c_void, usize, usize) -> *mut c_void),
}

Variants

None

No value.

Some(unsafe extern "system" fn(u32, u32, *mut c_void, *mut c_void, *mut c_void, *mut c_void, usize, usize) -> *mut c_void)

Some value of type T.