pub type PFNProgressNotification = Option<unsafe extern "system" fn(pvData: LPVOID, uFrameNum: ULONG, operation: WICProgressOperation, dblProgress: c_double) -> HRESULT>;Aliased Type§
pub enum PFNProgressNotification {
None,
Some(unsafe extern "system" fn(*mut c_void, u32, u32, f64) -> i32),
}