PowerToys/Wox/Helper/WindowIntelopHelper.cs

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1.6 KiB
C#
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Runtime.InteropServices;
using System.Windows;
namespace Wox.Helper
{
public class WindowIntelopHelper
{
private const int GWL_STYLE = -16; //WPF's Message code for Title Bar's Style
private const int GWL_EXSTYLE = -20; //Gets the exstyle of the window
private const int WS_EX_TOPMOST = 0x00000008; //Topmost flag
private const int WS_SYSMENU = 0x80000; //WPF's Message code for System Menu
[DllImport("user32.dll", SetLastError = true)]
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 IntPtr GetForegroundWindow();
/// <summary>
///Checks if the foreground window is TopMost (even Wox)
/// </summary>
/// <returns></returns>
public static bool IsForegroundWindowTopMost()
{
return (GetWindowLong(GetForegroundWindow(), GWL_EXSTYLE) & WS_EX_TOPMOST) == WS_EX_TOPMOST;
}
/// <summary>
/// disable windows toolbar's control box
/// this will also disable system menu with Alt+Space hotkey
/// </summary>
public static void DisableControlBox(Window win)
{
var hwnd = new System.Windows.Interop.WindowInteropHelper(win).Handle;
SetWindowLong(hwnd, GWL_STYLE, GetWindowLong(hwnd, GWL_STYLE) & ~WS_SYSMENU);
}
}
}