Type Alias PFNDPAMERGE 

pub type PFNDPAMERGE = Option<unsafe extern "system" fn(umsg: DPAMM_MESSAGE, pvdest: *const c_void, pvsrc: *const c_void, lparam: LPARAM) -> *mut c_void>;

Aliased Type

pub enum PFNDPAMERGE {
    None,
    Some(unsafe extern "system" fn(u32, *const c_void, *const c_void, isize) -> *mut c_void),
}

Variants

None

No value.

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

Some value of type T.