LPDIENUMDEVICESCALLBACKA

Type Alias LPDIENUMDEVICESCALLBACKA 

pub type LPDIENUMDEVICESCALLBACKA = Option<unsafe extern "system" fn(param0: *mut DIDEVICEINSTANCEA, param1: *mut c_void) -> BOOL>;

Aliased Type§

pub enum LPDIENUMDEVICESCALLBACKA {
    None,
    Some(unsafe extern "system" fn(*mut DIDEVICEINSTANCEA, *mut c_void) -> BOOL),
}

Variants§

§1.0.0

None

No value.

§1.0.0

Some(unsafe extern "system" fn(*mut DIDEVICEINSTANCEA, *mut c_void) -> BOOL)

Some value of type T.