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Restore SEBPatch

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Vichingo455
2025-06-01 11:44:20 +02:00
commit 8c656e3137
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84
SafeExamBrowser.UserInterface.Shared/Utilities/WindowExtensions.cs Normal file
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/*
* Copyright (c) 2024 ETH Zürich, IT Services
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
using System;
using System.Runtime.InteropServices;
using System.Windows;
using System.Windows.Interop;
namespace SafeExamBrowser.UserInterface.Shared.Utilities
{
public static class WindowExtensions
{
private const int GWL_STYLE = -16;
private const uint MF_BYCOMMAND = 0x00000000;
private const uint MF_ENABLED = 0x00000000;
private const uint MF_GRAYED = 0x00000001;
private const uint SC_CLOSE = 0xF060;
private const uint SWP_SHOWWINDOW = 0x0040;
private const int WS_SYSMENU = 0x80000;
private static readonly IntPtr HWND_BOTTOM = new IntPtr(1);
public static void DisableCloseButton(this Window window)
{
var helper = new WindowInteropHelper(window);
var systemMenu = GetSystemMenu(helper.Handle, false);
if (systemMenu != IntPtr.Zero)
{
EnableMenuItem(systemMenu, SC_CLOSE, MF_BYCOMMAND | MF_GRAYED);
}
}
public static void EnableCloseButton(this Window window)
{
var helper = new WindowInteropHelper(window);
var systemMenu = GetSystemMenu(helper.Handle, false);
if (systemMenu != IntPtr.Zero)
{
EnableMenuItem(systemMenu, SC_CLOSE, MF_BYCOMMAND | MF_ENABLED);
}
}
public static void HideCloseButton(this Window window)
{
var helper = new WindowInteropHelper(window);
var style = GetWindowLong(helper.Handle, GWL_STYLE) & ~WS_SYSMENU;
SetWindowLong(helper.Handle, GWL_STYLE, style);
}
public static void MoveToBackground(this Window window)
{
var helper = new WindowInteropHelper(window);
var x = (int) window.TransformFromPhysical(window.Left, 0).X;
var y = (int) window.TransformFromPhysical(0, window.Top).Y;
var width = (int) window.TransformFromPhysical(window.Width, 0).X;
var height = (int) window.TransformFromPhysical(0, window.Height).Y;
SetWindowPos(helper.Handle, HWND_BOTTOM, x, y, width, height, SWP_SHOWWINDOW);
}
[DllImport("user32.dll")]
private static extern bool EnableMenuItem(IntPtr hMenu, uint uIDEnableItem, uint uEnable);
[DllImport("user32.dll")]
private static extern IntPtr GetSystemMenu(IntPtr hWnd, bool bRevert);
[DllImport("user32.dll")]
private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
[DllImport("user32.dll")]
private static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
[DllImport("user32.dll")]
private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);
}
}