winsafe 0.0.27

Windows API and GUI in safe, idiomatic Rust.
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39

use crate::co;
use crate::decl::*;
use crate::guard::*;
use crate::msg::*;
use crate::prelude::*;

/// [`WM_DROPFILES`](https://learn.microsoft.com/en-us/windows/win32/shell/wm-dropfiles)
/// message parameters.
///
/// Return type: `()`.
pub struct DropFiles {
	pub hdrop: DragFinishGuard,
}

impl MsgSend for DropFiles {
	type RetType = ();

	unsafe fn isize_to_ret(&self, _: isize) -> Self::RetType {
		()
	}

	fn as_generic_wm(&mut self) -> WndMsg {
		WndMsg {
			msg_id: co::WM::DROPFILES,
			wparam: self.hdrop.ptr() as _,
			lparam: 0,
		}
	}
}

impl MsgSendRecv for DropFiles {
	unsafe fn from_generic_wm(p: WndMsg) -> Self {
		unsafe {
			Self {
				hdrop: DragFinishGuard::new(HDROP::from_ptr(p.wparam as _)),
			}
		}
	}
}