Type Alias PFN_PRINTING_ADDPORT2 

pub type PFN_PRINTING_ADDPORT2 = Option<unsafe extern "system" fn(param0: HANDLE, param1: PCWSTR, param2: HWND, param3: PCWSTR) -> BOOL>;

Aliased Type

pub enum PFN_PRINTING_ADDPORT2 {
    None,
    Some(unsafe extern "system" fn(HANDLE, PCWSTR, HWND, PCWSTR) -> BOOL),
}

Variants

None

No value.

Some(unsafe extern "system" fn(HANDLE, PCWSTR, HWND, PCWSTR) -> BOOL)

Some value of type T.