Unity——程序置顶

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前言

在Unity中，如果你想要让打出来的程序窗口始终保持在最前，可以通过调用Windows API实现。在Unity中使用C#调用Windows API函数来使程序窗口置顶。

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一、方法一

using System.Runtime.InteropServices;
 
public class AlwaysOnTop : MonoBehaviour
{
    // 声明Windows API函数
    [DllImport("user32.dll")]
    private static extern int SetWindowPos(int hWnd, int hWndInsertAfter, int X, int Y, int cx, int cy, int uFlags);
 
    private const int HWND_TOPMOST = -1;
    private const int SWP_NOSIZE = 1;
    private const int SWP_NOMOVE = 2;
    private const int TOPMOST_FLAGS = SWP_NOMOVE | SWP_NOSIZE;
 
    void Start()
    {
        // 在启动时将窗口置顶
        SetWindowAlwaysOnTop(true);
    }
 
    public void SetWindowAlwaysOnTop(bool onTop)
    {
        // 获取当前窗口句柄
        int hWnd = System.Diagnostics.Process.GetCurrentProcess().MainWindowHandle;
        // 调用SetWindowPos函数将窗口置顶或取消置顶
        SetWindowPos(hWnd, onTop ? HWND_TOPMOST : 0, 0, 0, 0, 0, TOPMOST_FLAGS);
    }
}

二、方法二

using System;

using System.Collections;

using System.Runtime.InteropServices;

using System.Diagnostics;

using UnityEngine;
public class WindowMod : MonoBehaviour
{

    [DllImport("user32.dll")]
    static extern IntPtr GetForegroundWindow();

    [DllImport("user32.dll", CharSet = CharSet.Auto)]
    public static extern bool SetWindowPos(IntPtr hWnd, IntPtr hPos, int x, int y, int cx, int cy, uint nflags);

    [DllImport("User32.dll", EntryPoint = "FindWindow", CharSet = CharSet.Auto)]
    private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);

    [DllImport("User32.dll", EntryPoint = "SetWindowLong")]
    private static ex