pub type MagickProgressMonitor = Option<unsafe extern "C" fn(arg1: *const c_char, arg2: MagickOffsetType, arg3: MagickSizeType, arg4: *mut c_void) -> MagickBooleanType>;Aliased Type§
pub enum MagickProgressMonitor {
None,
Some(unsafe extern "C" fn(*const i8, i64, u64, *mut c_void) -> MagickBooleanType),
}