Type Alias ul_next_sys::ULSurfaceDefinitionGetRowBytesCallback

pub type ULSurfaceDefinitionGetRowBytesCallback = Option<unsafe extern "C" fn(user_data: *mut c_void) -> c_uint>;

The callback invoked when a Surface’s row bytes is requested.

@note This value is also known as “stride”. Usually width * 4.

@param user_data User data pointer uniquely identifying the surface.

Aliased Type

enum ULSurfaceDefinitionGetRowBytesCallback {
    None,
    Some(unsafe extern "C" fn(_: *mut c_void) -> u32),
}

Variants

None

No value.

Some(unsafe extern "C" fn(_: *mut c_void) -> u32)

Some value of type T.