【Unity】用Windows Api控制窗口置顶、窗口风格等操作
文章不用看了，因为发现了更好用的插件，用起来很方便：https://github.com/kirurobo/uniwindowcontroller
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WindowTool.cs如下：
using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
///
/// 改变游戏窗口的风格、大小、层级
///
public static class WindowTool
{
#region Win32Api
[DllImport("User32.dll")]
private static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
[DllImport("user32.dll")]
private static extern IntPtr GetForegroundWindow();
[DllImport("user32.dll")]
private static extern bool SetForegroundWindow(IntPtr hWnd);
[DllImport("user32.dll")]
private static extern bool SetWindowPos(IntPtr hWnd, IntPtr hPos, int x, int y, int cx, int cy, uint nflags);
[DllImport("User32.dll")]
private static extern int SetWindowLong(IntPtr hWnd, int nIndex, int dwNewLong);
[DllImport("User32.dll")]
private static extern int GetWindowLong(IntPtr hWnd, int dwNewLong);
[DllImport("user32.dll")]
private static extern int ShowWindow(IntPtr hwnd, int nCmdShow);
[DllImport("User32.dll")]
private static extern IntPtr GetSystemMetrics(int nIndex);
#endregion
///
/// 窗口风格
///
public static class WindowStyle
{
public const uint WS_BORDER = 0x00800000,
WS_CAPTION = 0x00C00000,
WS_CHILD = 0x40000000,
WS_CHILDWINDOW = 0x40000000,
WS_CLIPCHILDREN = 0x02000000,
WS_CLIPSIBLINGS = 0x04000000,
WS_DISABLED = 0x08000000,
WS_DLGFRAME = 0x00400000,
WS_GROUP = 0x00020000,
WS_HSCROLL = 0x00100000,
WS_ICONIC = 0x20000000,
WS_MAXIMIZE = 0x01000000,
WS_MAXIMIZEBOX = 0x00010000,
WS_MINIMIZE = 0x20000000,
WS_MINIMIZEBOX = 0x00020000,
WS_OVERLAPPED = 0x00000000,
WS_OVERLAPPEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX,
WS_POPUP = 0x80000000,
WS_POPUPWINDOW = WS_POPUP | WS_BORDER | WS_SYSMENU,
WS_SIZEBOX = 0x00040000,
WS_SYSMENU = 0x00080000,
WS_TABSTOP = 0x00010000,
WS_THICKFRAME = 0x00040000,
WS_TILED = 0x00000000,
WS_TILEDWINDOW = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_THICKFRAME | WS_MINIMIZEBOX | WS_MAXIMIZEBOX,
WS_VISIBLE = 0x10000000,
WS_VSCROLL = 0x00200000;
}
///
/// 窗口扩展风格
///
public static class WindowStyleEx
{
public const uint WS_EX_ACCEPTFILES = 0x00000010,
WS_EX_APPWINDOW = 0x00040000,
WS_EX_CLIENTEDGE = 0x00000200,
WS_EX_COMPOSITED = 0x02000000,
WS_EX_CONTEXTHELP = 0x00000400,
WS_EX_CONTROLPARENT = 0x00010000,
WS_EX_DLGMODALFRAME = 0x00000001,
WS_EX_LAYERED = 0x00080000,
WS_EX_LAYOUTRTL = 0x00400000,
WS_EX_LEFT = 0x00000000,
WS_EX_LEFTSCROLLBAR = 0x00004000,
WS_EX_LTRREADING = 0x00000000,
WS_EX_MDICHILD = 0x00000040,
WS_EX_NOACTIVATE = 0x08000000,
WS_EX_NOINHERITLAYOUT = 0x00100000,
WS_EX_NOPARENTNOTIFY = 0x00000004,
WS_EX_OVERLAPPEDWINDOW = WS_EX_WINDOWEDGE | WS_EX_CLIENTEDGE,
WS_EX_PALETTEWINDOW = WS_EX_WINDOWEDGE | WS_EX_TOOLWINDOW | WS_EX_TOPMOST,
WS_EX_RIGHT = 0x00001000,
WS_EX_RIGHTSCROLLBAR = 0x00000000,
WS_EX_RTLREADING = 0x00002000,
WS_EX_STATICEDGE = 0x00020000,
WS_EX_TOOLWINDOW = 0x00000080,
WS_EX_TOPMOST = 0x00000008,
WS_EX_TRANSPARENT = 0x00000020,
WS_EX_WINDOWEDGE = 0x00000100;
}
private const int GWL_STYLE = -16;//表示与他相关的参数是窗口风格
private const int GWL_EXSTYLE = -20;//表示与他相关的参数是窗口扩展风格
//表示用于Win32Api的SetWindowPos方法的某个参数
private const uint SWP_NOSIZE = 0x0001;//表示此次设置不改变大小
private const uint SWP_NOMOVE = 0x0002;//表示此次设置不改变位置
private const uint SWP_NOZORDER = 0x0004;//表示此次设置不改变ZOrder
private const uint SWP_FRAMECHANGED = 0x0020;
private const uint SWP_SHOWWINDOW = 0x0040;
///
/// 窗口类型
///
public enum WindowType
{
ExclusiveFullScreen,//独占全屏
FullScreenWindow,//窗口全屏
ResizableWindow,//普通可调节大小的窗口
FixedSizeWindow,//固定大小的窗口
}
///
/// 窗口的Z排序设置。
///
public enum ZOrder
{
///
/// 让窗口变为当时的最顶层，相当于给窗口设置了一个"置顶"标志，
/// 与其他有这个标志的窗口竞争最顶层的位置（鼠标点击可切换哪个窗口成为当时的最顶层），
/// 所有带这个标志的窗口处在所有不带这个标志的窗口的上面，离用户更近。
///
TopMost = -1,
///
/// 取消窗口的"置顶"标志，于是这个窗口就变成了普通窗口，置顶窗口们就不和它一起玩了，它之后便和其他普通窗口一桌竞争了。
/// 这个设置只对本来就是置顶窗口的窗口有用，对普通窗口没效果。
///
NoTopMost = -2,
///
/// 将窗口移动到普通窗口的顶部，依然处在置顶窗口们的下面，依然是普通窗口，不会一直待在顶部，会在以后鼠标点来点去的时候跑到其他窗口下面。
///
Top = 0,
///
/// 将窗口移动到普通窗口的底部。其他与Top同理。
///
Bottom = 1,
}
private static IntPtr _hWndSelf = new IntPtr(0);//自己的窗口句柄
public static IntPtr hWndSelf
{
get
{
#if UNITY_EDITOR
#elif UNITY_STANDALONE_WIN
if (_hWndSelf.ToInt32() == 0)
{
Debug.Log("窗口句柄为0，无法操作窗口。");
}
#endif
return _hWndSelf;
}
}
public static void Init()
{
#if UNITY_EDITOR
_hWndSelf = new IntPtr(0);//在编辑器里面，让窗口句柄为0，这样就相当于没有指定窗口，调用Win32Api就不会有任何效果。
#elif UNITY_STANDALONE_WIN
_hWndSelf = FindWindow(null, Application.productName);//打Windows包之后才有效果
#endif
}
public static void SetWindow(int width, int height, WindowType windowType, ZOrder zOrder = ZOrder.NoTopMost)
{
switch (windowType)
{
case WindowType.ExclusiveFullScreen:
//独占全屏的时候，其他TopMost的窗口无法出现在它上面
Screen.SetResolution(width, height, FullScreenMode.ExclusiveFullScreen);
break;
case WindowType.FullScreenWindow:
CoroutineManager.Instance.StartCoroutine(SetFullScreenWindow(width, height));
break;
case WindowType.ResizableWindow:
CoroutineManager.Instance.StartCoroutine(SetResizableWindow(width, height, zOrder));
break;
case WindowType.FixedSizeWindow:
CoroutineManager.Instance.StartCoroutine(SetFixedSizeWindow(width, height, zOrder));
break;
default:
break;
}
}
///
/// 设置为窗口全屏模式。在做实验的时候，发现有时从FullScreenMode.ExclusiveFullScreen转到FullScreenMode.FullScreenWindow(比如从720P到更高分辨率)
/// 要两次才能成功（第一次没有完全成功）（可能与Screen.SetResolution的效果实际执行时刻有关？），所以使用协程执行两次。
///
///
///
///
/// 设置为可调整大小的窗口模式
///
///
///
///
/// 设置为固定尺寸，不可调整大小的窗口模式
///
///
///
///
/// 设置的是整个窗口的大小。而非客户区（也就是游戏画面）的尺寸的大小。
///
///
///
public static void SetSize(int width, int height)
{
SetWindowPos(hWndSelf, IntPtr.Zero, 0, 0, width, height, SWP_NOMOVE | SWP_NOZORDER | SWP_FRAMECHANGED | SWP_SHOWWINDOW);
}
public static void SetZOrder(ZOrder zOrder)
{
SetWindowPos(hWndSelf, new IntPtr((int)zOrder), 0, 0, 0, 0, SWP_NOSIZE | SWP_NOMOVE | SWP_FRAMECHANGED | SWP_SHOWWINDOW);
}
///
/// 设置为置顶窗口
///
public static void SetTopMost()
{
SetZOrder(ZOrder.TopMost);
}
///
/// 取消窗口置顶
///
public static void CancelTopMost()
{
SetZOrder(ZOrder.NoTopMost);
}
}
里面使用的协程管理器CoroutineManager.cs如下：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
///
/// 协程管理
///
public class CoroutineManager : MonoBehaviour
{
public static CoroutineManager Instance;
private void Awake()
{
Instance = this;
}
}使用方法：刚开始的时候初始化一次：WindowTool.Init() ;
以后可以直接调用WindowTool.SetWindow()等方法进行设置。
千言万语都在代码注释里面。代码比较浅显，不一定好用，但勉强能用。