winsafe 0.0.27

Windows API and GUI in safe, idiomatic Rust.
Documentation 
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use crate::co;
use crate::decl::*;

pub(in crate::comctl) extern "system" fn func_task_dialog_callback(
	hwnd: HWND,
	msg: co::TDN,
	wparam: usize,
	lparam: isize,
	lp_ref_data: isize,
) -> co::HRESULT {
	let tdc = unsafe { &*(lp_ref_data as *const TASKDIALOGCONFIG) };
	tdc.callback
		.as_ref()
		.map_or(co::HRESULT::S_OK, |tdc| tdc(&hwnd, unsafe { Tdn::from_msg(msg, wparam, lparam) }))
}