mirror of https://github.com/chylex/TweetDuck.git
67 lines
2.1 KiB
C#
67 lines
2.1 KiB
C#
#nullable enable
|
|
using System;
|
|
using System.Diagnostics.CodeAnalysis;
|
|
using System.Drawing;
|
|
using System.Runtime.InteropServices;
|
|
|
|
namespace TweetDuck.Video {
|
|
[SuppressMessage("ReSharper", "InconsistentNaming")]
|
|
static class NativeMethods {
|
|
private const int GA_ROOT = 2;
|
|
private const int GWL_HWNDPARENT = -8;
|
|
|
|
[DllImport("user32.dll")]
|
|
[return: MarshalAs(UnmanagedType.Bool)]
|
|
public static extern bool GetWindowRect(IntPtr hWnd, out RECT lpRect);
|
|
|
|
[DllImport("user32.dll")]
|
|
[return: MarshalAs(UnmanagedType.Bool)]
|
|
public static extern bool GetClientRect(IntPtr hWnd, out RECT lpRect);
|
|
|
|
[DllImport("user32.dll")]
|
|
private static extern int SetWindowLong(IntPtr hWnd, int nIndex, IntPtr dwNewLong);
|
|
|
|
[DllImport("user32.dll")]
|
|
public static extern bool SetForegroundWindow(IntPtr hWnd);
|
|
|
|
[DllImport("user32.dll")]
|
|
public static extern IntPtr GetForegroundWindow();
|
|
|
|
[DllImport("user32.dll")]
|
|
private static extern IntPtr WindowFromPoint(Point point);
|
|
|
|
[DllImport("user32.dll")]
|
|
private static extern IntPtr GetAncestor(IntPtr hwnd, int flags);
|
|
|
|
[DllImport("user32.dll")]
|
|
public static extern bool SetProcessDPIAware();
|
|
|
|
[StructLayout(LayoutKind.Sequential)]
|
|
[SuppressMessage("ReSharper", "InconsistentNaming")]
|
|
[SuppressMessage("ReSharper", "FieldCanBeMadeReadOnly.Global")]
|
|
public struct RECT {
|
|
public int Left;
|
|
public int Top;
|
|
public int Right;
|
|
public int Bottom;
|
|
}
|
|
|
|
public static void SetWindowOwner(IntPtr child, IntPtr owner) {
|
|
SetWindowLong(child, GWL_HWNDPARENT, owner);
|
|
/*
|
|
* "You must not call SetWindowLong with the GWL_HWNDPARENT index to change the parent of a child window"
|
|
*
|
|
* ...which I'm not sure they're saying because this is completely unsupported and causes demons to come out of sewers
|
|
* ...or because GWL_HWNDPARENT actually changes the OWNER and is therefore NOT changing the parent of a child window
|
|
*
|
|
* ...so technically, this is following the documentation to the word.
|
|
*/
|
|
}
|
|
|
|
public static IntPtr GetFormHandleAt(Point point) {
|
|
IntPtr window = WindowFromPoint(point);
|
|
return window == IntPtr.Zero ? IntPtr.Zero : GetAncestor(window, GA_ROOT);
|
|
}
|
|
}
|
|
}
|