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Desktop: Fix resize helper window Z-order and attach to parent console on Windows (#3572)

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* Desktop: Fix helper window zorder on Windows

* Attach to parent console if launched from a terminal

* Workaround for a Windows-specific exception that occurs when `app` is dropped
This commit is contained in:
Timon
2026-01-05 23:02:41 +00:00
committed by GitHub
parent fafc687d84
commit bd1f7eefdb
4 changed files with 25 additions and 9 deletions
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7
desktop/src/window/win.rs
View File

@@ -1,4 +1,5 @@
use windows::Win32::System::Com::{COINIT_APARTMENTTHREADED, CoInitializeEx};
use windows::Win32::System::Console::{ATTACH_PARENT_PROCESS, AttachConsole};
use windows::Win32::UI::Shell::SetCurrentProcessExplicitAppUserModelID;
use windows::core::HSTRING;
use winit::event_loop::ActiveEventLoop;
@@ -13,6 +14,12 @@ pub(super) struct NativeWindowImpl {
impl super::NativeWindow for NativeWindowImpl {
fn init() {
// Attach to parent console if launched from a terminal (no-op otherwise)
unsafe {
let _ = AttachConsole(ATTACH_PARENT_PROCESS);
}
// Set stable app ID
let app_id = HSTRING::from(APP_ID);
unsafe {
let _ = CoInitializeEx(None, COINIT_APARTMENTTHREADED).ok();

18
desktop/src/window/win/native_handle.rs
View File

@@ -61,7 +61,7 @@ impl NativeWindowHandle {
0,
0,
0,
None,
main,
None,
HINSTANCE(std::ptr::null_mut()),
// Pass the main window's HWND to WM_NCCREATE so the helper can store it.
@@ -118,7 +118,7 @@ impl NativeWindowHandle {
}
// Force window update
let _ = unsafe { SetWindowPos(main, None, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER) };
let _ = unsafe { SetWindowPos(main, None, 0, 0, 0, 0, SWP_FRAMECHANGED | SWP_NOMOVE | SWP_NOSIZE) };
native_handle
}
@@ -325,20 +325,20 @@ unsafe fn position_helper(main: HWND, helper: HWND) {
let w = (r.right - r.left) + RESIZE_BAND_THICKNESS * 2;
let h = (r.bottom - r.top) + RESIZE_BAND_THICKNESS * 2;
let _ = unsafe { SetWindowPos(helper, main, x, y, w, h, SWP_NOACTIVATE | SWP_NOZORDER | SWP_NOOWNERZORDER | SWP_NOSENDCHANGING) };
let _ = unsafe { SetWindowPos(helper, main, x, y, w, h, SWP_NOACTIVATE | SWP_NOSENDCHANGING) };
}
unsafe fn calculate_hit(helper: HWND, lparam: LPARAM) -> u32 {
let x = (lparam.0 & 0xFFFF) as i16 as u32;
let y = ((lparam.0 >> 16) & 0xFFFF) as i16 as u32;
let x = (lparam.0 & 0xFFFF) as i16 as i32;
let y = ((lparam.0 >> 16) & 0xFFFF) as i16 as i32;
let mut r = RECT::default();
let _ = unsafe { GetWindowRect(helper, &mut r) };
let on_top = y < (r.top + RESIZE_BAND_THICKNESS) as u32;
let on_right = x >= (r.right - RESIZE_BAND_THICKNESS) as u32;
let on_bottom = y >= (r.bottom - RESIZE_BAND_THICKNESS) as u32;
let on_left = x < (r.left + RESIZE_BAND_THICKNESS) as u32;
let on_top = y < (r.top + RESIZE_BAND_THICKNESS) as i32;
let on_right = x >= (r.right - RESIZE_BAND_THICKNESS) as i32;
let on_bottom = y >= (r.bottom - RESIZE_BAND_THICKNESS) as i32;
let on_left = x < (r.left + RESIZE_BAND_THICKNESS) as i32;
match (on_top, on_right, on_bottom, on_left) {
(true, _, _, true) => HTTOPLEFT,