Type Alias playdate_sys::ffi::PDButtonCallbackFunction

source · 
pub type PDButtonCallbackFunction = Option<unsafe extern "C" fn(button: PDButtons, down: c_int, when: u32, userdata: *mut c_void) -> c_int>;

Aliased Type§

enum PDButtonCallbackFunction {
    // some variants omitted
}

Variants§

Layout§

Note: Most layout information is completely unstable and may even differ between compilations. The only exception is types with certain repr(...) attributes. Please see the Rust Reference's “Type Layout” chapter for details on type layout guarantees.

Size: 4 bytes

Size for each variant:

  • None: 0 bytes
  • Some: 4 bytes