pub type PFN_PRINTING_WRITEPORT = Option<unsafe extern "system" fn(param0: HANDLE, param1: *const u8, param2: u32, param3: *mut u32) -> BOOL>;
Expand description

Required features: "Win32_Foundation"

Aliased Type§

enum PFN_PRINTING_WRITEPORT {
    None,
    Some(unsafe extern "system" fn(_: isize, _: *const u8, _: u32, _: *mut u32) -> i32),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "system" fn(_: isize, _: *const u8, _: u32, _: *mut u32) -> i32)

Some value of type T.