Unity窗口操作
unity调用win32操作窗口
1.基本操作
（1）全屏
（2）最小化
（3）除任务栏全屏
（4）改变标题栏文字
（5）设置无边框，窗口位置及分辨率
using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
/// <summary>
/// 窗口工具系统类(窗口状态)
/// </summary>
public class WindowManager : MonoBehaviour
{
#region 系统字段 & 系统方法
//设置当前窗口的显示状态
[DllImport("user32.dll")]
public static extern bool ShowWindow(System.IntPtr hwnd, int nCmdShow);
//获取当前激活窗口
[DllImport("user32.dll", EntryPoint = "GetForegroundWindow")]
public static extern System.IntPtr GetForegroundWindow();
//获取指定unity.exe窗口
[DllImport("user32.dll", EntryPoint = "FindWindow")]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
//public static IntPtr ParenthWnd = FindWindow(null, "ProjectName"); //build时候的项目名，playerSetting中设置的
public static IntPtr ParenthWnd = FindWindow(null, "Win"); //build时候的项目名，playerSetting中设置的
//设置窗口边框
[DllImport("user32.dll")]
public static extern IntPtr SetWindowLong(IntPtr hwnd, int _nIndex, int dwNewLong);
//设置窗口位置，尺寸
[DllImport("user32.dll")]
public static extern bool SetWindowPos(IntPtr hWnd, int hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);
[DllImport("user32.dll", SetLastError = true)]
private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
//窗口拖动
[DllImport("user32.dll")]
public static extern bool ReleaseCapture();
[DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
//更改标题栏
[DllImport("user32.dll")]
public static extern int SetWindowText(IntPtr hWnd, string text);
//使用查找任务栏
[DllImport("user32.dll")]
public static extern IntPtr FindWindow(string strClassName, int nptWindowName);
//获取窗口位置以及大小
[DllImport("user32.dll")]
[return: MarshalAs(UnmanagedType.Bool)]
public static extern bool GetWindowRect(IntPtr hWnd, ref RECT lpRect);
[StructLayout(LayoutKind.Sequential)]
public struct RECT
{
public int Left; //最左坐标
public int Top; //最上坐标
public int Right; //最右坐标
public int Bottom; //最下坐标
}
//边框参数
private const uint SWP_SHOWWINDOW = 0x0040;
private const int GWL_STYLE = -16;
private const int WS_BORDER = 1;
//隐藏标题栏图标
private const int WS_POPUP = 0x800000;
private const int WS_SYSMENU = 0x80000;
//最大最小化
private const int SW_SHOWMINIMIZED = 2;//(最小化窗口)
private const int SW_SHOWMAXIMIZED = 3;//最大化窗口
//去除标题栏保留边框
private const int WS_CAPTION = 0x00C00000;
private const int WS_THICKFRAME = 0x00040000;
#endregion
#region 方法
/// <summary>
/// 最小化窗口
/// </summary>
public void SetMinWindows()
{
ShowWindow(ParenthWnd, SW_SHOWMINIMIZED);
}
private bool taskbarFullScreen = false;//是否是任务栏全屏
// <summary>
/// 最大化窗口：窗口全屏
/// </summary>
public void SetMaxWindows()
{
if (taskbarFullScreen)
SetWindowPos(ParenthWnd, 0, 0, 0, Screen.currentResolution.width, Screen.currentResolution.height + GetTaskBarHeight(), SWP_SHOWWINDOW);
else
ShowWindow(GetForegroundWindow(), SW_SHOWMAXIMIZED);
}
/// <summary>
/// 除任务栏外最大化窗口
/// </summary>
public void TaskbarMaxWindow()
{
int currMaxScreenHeight = Screen.currentResolution.height - GetTaskBarHeight();
SetWindowPos(ParenthWnd, 0, 0, 0, Screen.currentResolution.width, currMaxScreenHeight, SWP_SHOWWINDOW);
taskbarFullScreen = !taskbarFullScreen;
}
/// <summary>
/// 设置无边框，窗口位置及分辨率
/// </summary>
/// <param name="rect">尺寸数据</param>
public void SetNoFrameWindow(Rect rect, bool isMax, bool isDrag = false)
{
if (!isDrag)
{
//去除上边栏（不可拖拽缩放）
SetWindowLong(ParenthWnd, GWL_STYLE, WS_POPUP);
}
else
{
if (!isMax)
{
//设置拖拽缩放模式
SetWindowLong(ParenthWnd, GWL_STYLE, GetWindowLong(ParenthWnd, GWL_STYLE)
& ~WS_CAPTION | WS_THICKFRAME);
}
else
{
//去除上边栏（不可拖拽缩放）
SetWindowLong(ParenthWnd, GWL_STYLE, WS_POPUP);
}
}
//隐藏上边栏（部分）
// SetWindowLong(GetForegroundWindow(), GWL_STYLE, GetWindowLong(GetForegroundWindow(), GWL_STYLE) & ~WS_POPUP);
if (isMax)
{
SetMaxWindows();
}
else
{
//设置窗口位置及分辨率
bool result = SetWindowPos(ParenthWnd, 0, (int)rect.x, (int)rect.y, (int)rect.width, (int)rect.height, SWP_SHOWWINDOW);
}
}
/// <summary>
/// 拖动窗口
/// </summary>
/// <param name="window">当前句柄</param>
public void DragWindow(IntPtr window)
{
ReleaseCapture();
SendMessage(window, 0xA1, 0x02, 0);
SendMessage(window, 0x0202, 0, 0);
}
public string titleText;
/// <summary>
/// 改变标题栏标题
/// </summary>
public void ChangeTitleText()
{
SetWindowText(ParenthWnd, titleText);
}
/// <summary>
/// 获取当前窗口尺寸
/// </summary>
/// <returns></returns>
public Rect GetWindowInfo()
{
RECT rect = new RECT();
Rect targetRect = new Rect();
GetWindowRect(ParenthWnd, ref rect);
targetRect.width = Mathf.Abs(rect.Right - rect.Left);
targetRect.height = Mathf.Abs(rect.Top - rect.Bottom);
targetRect.x = rect.Left;
targetRect.y = rect.Top;
return targetRect;
}
#endregion
#region Private Methods
/// <summary>
/// 获取任务栏高度
/// </summary>
/// <returns>任务栏高度</returns>
private int GetTaskBarHeight()
{
int taskbarHeight = 10;
IntPtr hWnd = FindWindow("Shell_TrayWnd", 0);
RECT rect = new RECT();
GetWindowRect(hWnd, ref rect);
taskbarHeight = rect.Bottom - rect.Top;
return taskbarHeight;
}
#endregion
}
}
2.没有标题栏和上边框时，点动场景拖动窗口
using System;
using System.Collections;
using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
/// <summary>
/// 窗口工具系统类(窗口状态)
/// </summary>
public class WindowsTool : MonoBehaviour
{
//获取指定unity.exe窗口
[DllImport("user32.dll", EntryPoint = "FindWindow")]
public static extern IntPtr FindWindow(string lpClassName, string lpWindowName);
//public static IntPtr ParenthWnd = FindWindow(null, "ProjectName"); //build时候的项目名，playerSetting中设置的
public static IntPtr ParenthWnd = FindWindow(null, "Win"); //build时候的项目名，playerSetting中设置的
//设置窗口边框
[DllImport("user32.dll")]
public static extern IntPtr SetWindowLong(IntPtr hwnd, int _nIndex, int dwNewLong);
//设置窗口位置，尺寸
[DllImport("user32.dll")]
public static extern bool SetWindowPos(IntPtr hWnd, int hWndInsertAfter, int X, int Y, int cx, int cy, uint uFlags);
[DllImport("user32.dll", SetLastError = true)]
private static extern int GetWindowLong(IntPtr hWnd, int nIndex);
//窗口拖动
[DllImport("user32.dll")]
public static extern bool ReleaseCapture();
[DllImport("user32.dll")]
public static extern bool SendMessage(IntPtr hwnd, int wMsg, int wParam, int lParam);
//边框参数
private const uint SWP_SHOWWINDOW = 0x0040;
private const int GWL_STYLE = -16;
private const int WS_BORDER = 1;
//隐藏标题栏图标
private const int WS_POPUP = 0x800000;
float xx;
bool bx;
void Start()
{
bx = false;
xx = 0f;
#if UNITY_STANDALONE_WIN
Resolution[] r = Screen.resolutions;
Rect screenPosition = new Rect((r[r.Length - 1].width - Screen.width) / 2, (r[r.Length - 1].height - Screen.height) / 2, Screen.width, Screen.height);
//去除上边栏（不可拖拽缩放）
SetWindowLong(ParenthWnd, GWL_STYLE, WS_POPUP);//将网上的WS_BORDER替换成WS_POPUP
//设置窗口位置以及分辨率
SetWindowPos(ParenthWnd, 0, (int)screenPosition.x, (int)screenPosition.y, (int)screenPosition.width, (int)screenPosition.height, SWP_SHOWWINDOW);
#endif
}
void Update()
{
#if UNITY_STANDALONE_WIN
if (Input.GetMouseButtonDown(0))
{
xx = 0f;
bx = true;
}
if (bx && xx >= 0.3f)
{ //这样做为了区分界面上面其它需要滑动的操作
ReleaseCapture();
SendMessage(ParenthWnd, 0xA1, 0x02, 0);
SendMessage(ParenthWnd, 0x0202, 0, 0);
}
if (bx)
xx += Time.deltaTime;
if (Input.GetMouseButtonUp(0))
{
xx = 0f;
bx = false;
}
#endif
}
}
3.自由调整窗口大小
4.调整窗口大小强制固定比例
参考网址：
https://blog.csdn.net/u014661152/article/details/113737625?spm=1001.2101.3001.6650.1&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1.pc_relevant_default&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7ERate-1.pc_relevant_default&utm_relevant_index=2
